{"nodes": [{"id": "0", "name": "annual rainfall"}, {"id": "1", "name": "web page"}, {"id": "2", "name": "visual communication"}, {"id": "3", "name": "statistical methods"}, {"id": "4", "name": "water resources"}, {"id": "5", "name": "fashion design"}, {"id": "6", "name": "parallel computing"}, {"id": "7", "name": "data acquisition"}, {"id": "8", "name": "future directions"}, {"id": "9", "name": "object oriented"}, {"id": "10", "name": "mobile phone"}, {"id": "11", "name": "software engineering"}, {"id": "12", "name": "graphics processor"}, {"id": "13", "name": "augmented reality"}, {"id": "14", "name": "human perception"}, {"id": "15", "name": "problem solving"}, {"id": "16", "name": "high school"}, {"id": "17", "name": "probabilistic graphical models"}, {"id": "18", "name": "fine art"}, {"id": "19", "name": "multi core"}, {"id": "20", "name": "higher education"}, {"id": "21", "name": "graphical interface"}, {"id": "22", "name": "social media"}, {"id": "23", "name": "modeling language"}, {"id": "24", "name": "cloud computing"}, {"id": "25", "name": "water quality"}, {"id": "26", "name": "comic book"}, {"id": "27", "name": "media literacy"}, {"id": "28", "name": "current account"}, {"id": "29", "name": "teaching reform"}, {"id": "30", "name": "graphic designer"}, {"id": "31", "name": "magnetic field"}, {"id": "32", "name": "open source"}, {"id": "33", "name": "parallel processing"}, {"id": "34", "name": "reading comprehension"}, {"id": "35", "name": "statistical analysis"}, {"id": "36", "name": "data visualization"}, {"id": "37", "name": "eddy current"}, {"id": "38", "name": "vector graphics"}, {"id": "39", "name": "display device"}, {"id": "40", "name": "frame buffer"}, {"id": "41", "name": "efl learners"}, {"id": "42", "name": "line graph"}, {"id": "43", "name": "virtual reality"}, {"id": "44", "name": "source code"}, {"id": "45", "name": "international conference"}, {"id": "46", "name": "neural network"}, {"id": "47", "name": "descriptive geometry"}, {"id": "48", "name": "big data"}, {"id": "49", "name": "graphic arts"}, {"id": "50", "name": "user interface"}, {"id": "51", "name": "global illumination"}, {"id": "52", "name": "graphics cards"}, {"id": "53", "name": "graphic novels"}, {"id": "54", "name": "climate change"}, {"id": "55", "name": "oral health"}, {"id": "56", "name": "google trends"}, {"id": "57", "name": "qr code"}, {"id": "58", "name": "chinese character"}, {"id": "59", "name": "machine learning"}, {"id": "60", "name": "floating point"}, {"id": "61", "name": "hong kong"}, {"id": "62", "name": "pattern recognition"}, {"id": "63", "name": "signal processing"}, {"id": "64", "name": "scientific visualization"}, {"id": "65", "name": "programming language"}, {"id": "66", "name": "traditional chinese"}, {"id": "67", "name": "image processing"}, {"id": "68", "name": "digital library"}, {"id": "69", "name": "mobile devices"}, {"id": "70", "name": "solid modeling"}, {"id": "71", "name": "embedded systems"}, {"id": "72", "name": "public libraries"}, {"id": "73", "name": "engineering drawing"}, {"id": "74", "name": "united states"}, {"id": "75", "name": "sustainable development"}, {"id": "76", "name": "exchange rate"}, {"id": "77", "name": "scalable vector graphics"}, {"id": "78", "name": "ray tracing"}, {"id": "79", "name": "geometric modeling"}, {"id": "80", "name": "virtual environments"}, {"id": "81", "name": "literature review"}, {"id": "82", "name": "data mining"}, {"id": "83", "name": "graphics processing unit"}, {"id": "84", "name": "frame rate"}, {"id": "85", "name": "artificial intelligence"}, {"id": "86", "name": "graphical user interface"}, {"id": "87", "name": "graphic organizer"}], "evolve_edges": [{"2000": [{"source": "1", "target": "36", "source_name": "web page", "target_name": "data visualization", "weight": 1.0, "year": 2000}, {"source": "1", "target": "38", "source_name": "web page", "target_name": "vector graphics", "weight": 1.0, "year": 2000}, {"source": "1", "target": "77", "source_name": "web page", "target_name": "scalable vector graphics", "weight": 1.0, "year": 2000}, {"source": "1", "target": "82", "source_name": "web page", "target_name": "data mining", "weight": 1.0, "year": 2000}, {"source": "7", "target": "67", "source_name": "data acquisition", "target_name": "image processing", "weight": 1.0, "year": 2000}, {"source": "9", "target": "79", "source_name": "object oriented", "target_name": "geometric modeling", "weight": 1.0, "year": 2000}, {"source": "9", "target": "85", "source_name": "object oriented", "target_name": "artificial intelligence", "weight": 1.0, "year": 2000}, {"source": "12", "target": "33", "source_name": "graphics processor", "target_name": "parallel processing", "weight": 1.0, "year": 2000}, {"source": "14", "target": "43", "source_name": "human perception", "target_name": "virtual reality", "weight": 1.0, "year": 2000}, {"source": "14", "target": "50", "source_name": "human perception", "target_name": "user interface", "weight": 1.0, "year": 2000}, {"source": "14", "target": "60", "source_name": "human perception", "target_name": "floating point", "weight": 1.0, "year": 2000}, {"source": "14", "target": "71", "source_name": "human perception", "target_name": "embedded systems", "weight": 1.0, "year": 2000}, {"source": "36", "target": "82", "source_name": "data visualization", "target_name": "data mining", "weight": 1.0, "year": 2000}, {"source": "38", "target": "77", "source_name": "vector graphics", "target_name": "scalable vector graphics", "weight": 1.0, "year": 2000}, {"source": "43", "target": "47", "source_name": "virtual reality", "target_name": "descriptive geometry", "weight": 1.0, "year": 2000}, {"source": "43", "target": "50", "source_name": "virtual reality", "target_name": "user interface", "weight": 1.0, "year": 2000}, {"source": "43", "target": "60", "source_name": "virtual reality", "target_name": "floating point", "weight": 1.0, "year": 2000}, {"source": "43", "target": "64", "source_name": "virtual reality", "target_name": "scientific visualization", "weight": 1.0, "year": 2000}, {"source": "43", "target": "67", "source_name": "virtual reality", "target_name": "image processing", "weight": 1.0, "year": 2000}, {"source": "43", "target": "71", "source_name": "virtual reality", "target_name": "embedded systems", "weight": 1.0, "year": 2000}, {"source": "47", "target": "64", "source_name": "descriptive geometry", "target_name": "scientific visualization", "weight": 1.0, "year": 2000}, {"source": "47", "target": "67", "source_name": "descriptive geometry", "target_name": "image processing", "weight": 1.0, "year": 2000}, {"source": "50", "target": "60", "source_name": "user interface", "target_name": "floating point", "weight": 1.0, "year": 2000}, {"source": "50", "target": "71", "source_name": "user interface", "target_name": "embedded systems", "weight": 1.0, "year": 2000}, {"source": "50", "target": "82", "source_name": "user interface", "target_name": "data mining", "weight": 1.0, "year": 2000}, {"source": "50", "target": "86", "source_name": "user interface", "target_name": "graphical user interface", "weight": 3.0, "year": 2000}, {"source": "51", "target": "78", "source_name": "global illumination", "target_name": "ray tracing", "weight": 1.0, "year": 2000}, {"source": "51", "target": "79", "source_name": "global illumination", "target_name": "geometric modeling", "weight": 1.0, "year": 2000}, {"source": "60", "target": "71", "source_name": "floating point", "target_name": "embedded systems", "weight": 1.0, "year": 2000}, {"source": "64", "target": "67", "source_name": "scientific visualization", "target_name": "image processing", "weight": 1.0, "year": 2000}, {"source": "78", "target": "79", "source_name": "ray tracing", "target_name": "geometric modeling", "weight": 1.0, "year": 2000}, {"source": "79", "target": "85", "source_name": "geometric modeling", "target_name": "artificial intelligence", "weight": 1.0, "year": 2000}, {"source": "82", "target": "86", "source_name": "data mining", "target_name": "graphical user interface", "weight": 1.0, "year": 2000}]}, {"2001": [{"source": "1", "target": "36", "source_name": "web page", "target_name": "data visualization", "weight": 1.0, "year": 2001}, {"source": "1", "target": "38", "source_name": "web page", "target_name": "vector graphics", "weight": 1.0, "year": 2001}, {"source": "1", "target": "77", "source_name": "web page", "target_name": "scalable vector graphics", "weight": 1.0, "year": 2001}, {"source": "1", "target": "82", "source_name": "web page", "target_name": "data mining", "weight": 1.0, "year": 2001}, {"source": "2", "target": "30", "source_name": "visual communication", "target_name": "graphic designer", "weight": 1.0, "year": 2001}, {"source": "7", "target": "67", "source_name": "data acquisition", "target_name": "image processing", "weight": 1.0, "year": 2001}, {"source": "9", "target": "21", "source_name": "object oriented", "target_name": "graphical interface", "weight": 1.0, "year": 2001}, {"source": "9", "target": "79", "source_name": "object oriented", "target_name": "geometric modeling", "weight": 1.0, "year": 2001}, {"source": "9", "target": "85", "source_name": "object oriented", "target_name": "artificial intelligence", "weight": 1.0, "year": 2001}, {"source": "11", "target": "50", "source_name": "software engineering", "target_name": "user interface", "weight": 1.0, "year": 2001}, {"source": "12", "target": "33", "source_name": "graphics processor", "target_name": "parallel processing", "weight": 1.0, "year": 2001}, {"source": "14", "target": "43", "source_name": "human perception", "target_name": "virtual reality", "weight": 2.0, "year": 2001}, {"source": "14", "target": "50", "source_name": "human perception", "target_name": "user interface", "weight": 2.0, "year": 2001}, {"source": "14", "target": "60", "source_name": "human perception", "target_name": "floating point", "weight": 2.0, "year": 2001}, {"source": "14", "target": "71", "source_name": "human perception", "target_name": "embedded systems", "weight": 2.0, "year": 2001}, {"source": "23", "target": "43", "source_name": "modeling language", "target_name": "virtual reality", "weight": 1.0, "year": 2001}, {"source": "36", "target": "82", "source_name": "data visualization", "target_name": "data mining", "weight": 1.0, "year": 2001}, {"source": "38", "target": "77", "source_name": "vector graphics", "target_name": "scalable vector graphics", "weight": 3.0, "year": 2001}, {"source": "43", "target": "47", "source_name": "virtual reality", "target_name": "descriptive geometry", "weight": 1.0, "year": 2001}, {"source": "43", "target": "50", "source_name": "virtual reality", "target_name": "user interface", "weight": 3.0, "year": 2001}, {"source": "43", "target": "60", "source_name": "virtual reality", "target_name": "floating point", "weight": 2.0, "year": 2001}, {"source": "43", "target": "61", "source_name": "virtual reality", "target_name": "hong kong", "weight": 1.0, "year": 2001}, {"source": "43", "target": "64", "source_name": "virtual reality", "target_name": "scientific visualization", "weight": 1.0, "year": 2001}, {"source": "43", "target": "67", "source_name": "virtual reality", "target_name": "image processing", "weight": 1.0, "year": 2001}, {"source": "43", "target": "71", "source_name": "virtual reality", "target_name": "embedded systems", "weight": 2.0, "year": 2001}, {"source": "47", "target": "64", "source_name": "descriptive geometry", "target_name": "scientific visualization", "weight": 1.0, "year": 2001}, {"source": "47", "target": "67", "source_name": "descriptive geometry", "target_name": "image processing", "weight": 1.0, "year": 2001}, {"source": "50", "target": "60", "source_name": "user interface", "target_name": "floating point", "weight": 2.0, "year": 2001}, {"source": "50", "target": "62", "source_name": "user interface", "target_name": "pattern recognition", "weight": 1.0, "year": 2001}, {"source": "50", "target": "71", "source_name": "user interface", "target_name": "embedded systems", "weight": 2.0, "year": 2001}, {"source": "50", "target": "73", "source_name": "user interface", "target_name": "engineering drawing", "weight": 1.0, "year": 2001}, {"source": "50", "target": "82", "source_name": "user interface", "target_name": "data mining", "weight": 1.0, "year": 2001}, {"source": "50", "target": "86", "source_name": "user interface", "target_name": "graphical user interface", "weight": 5.0, "year": 2001}, {"source": "51", "target": "78", "source_name": "global illumination", "target_name": "ray tracing", "weight": 1.0, "year": 2001}, {"source": "51", "target": "79", "source_name": "global illumination", "target_name": "geometric modeling", "weight": 1.0, "year": 2001}, {"source": "60", "target": "71", "source_name": "floating point", "target_name": "embedded systems", "weight": 2.0, "year": 2001}, {"source": "62", "target": "73", "source_name": "pattern recognition", "target_name": "engineering drawing", "weight": 1.0, "year": 2001}, {"source": "63", "target": "71", "source_name": "signal processing", "target_name": "embedded systems", "weight": 1.0, "year": 2001}, {"source": "64", "target": "67", "source_name": "scientific visualization", "target_name": "image processing", "weight": 1.0, "year": 2001}, {"source": "78", "target": "79", "source_name": "ray tracing", "target_name": "geometric modeling", "weight": 1.0, "year": 2001}, {"source": "79", "target": "85", "source_name": "geometric modeling", "target_name": "artificial intelligence", "weight": 1.0, "year": 2001}, {"source": "80", "target": "85", "source_name": "virtual environments", "target_name": "artificial intelligence", "weight": 1.0, "year": 2001}, {"source": "82", "target": "86", "source_name": "data mining", "target_name": "graphical user interface", "weight": 1.0, "year": 2001}]}, {"2002": [{"source": "1", "target": "36", "source_name": "web page", "target_name": "data visualization", "weight": 1.0, "year": 2002}, {"source": "1", "target": "38", "source_name": "web page", "target_name": "vector graphics", "weight": 1.0, "year": 2002}, {"source": "1", "target": "77", "source_name": "web page", "target_name": "scalable vector graphics", "weight": 1.0, "year": 2002}, {"source": "1", "target": "82", "source_name": "web page", "target_name": "data mining", "weight": 1.0, "year": 2002}, {"source": "2", "target": "15", "source_name": "visual communication", "target_name": "problem solving", "weight": 1.0, "year": 2002}, {"source": "2", "target": "30", "source_name": "visual communication", "target_name": "graphic designer", "weight": 1.0, "year": 2002}, {"source": "6", "target": "50", "source_name": "parallel computing", "target_name": "user interface", "weight": 1.0, "year": 2002}, {"source": "6", "target": "86", "source_name": "parallel computing", "target_name": "graphical user interface", "weight": 1.0, "year": 2002}, {"source": "7", "target": "67", "source_name": "data acquisition", "target_name": "image processing", "weight": 1.0, "year": 2002}, {"source": "9", "target": "21", "source_name": "object oriented", "target_name": "graphical interface", "weight": 1.0, "year": 2002}, {"source": "9", "target": "79", "source_name": "object oriented", "target_name": "geometric modeling", "weight": 1.0, "year": 2002}, {"source": "9", "target": "85", "source_name": "object oriented", "target_name": "artificial intelligence", "weight": 1.0, "year": 2002}, {"source": "11", "target": "50", "source_name": "software engineering", "target_name": "user interface", "weight": 1.0, "year": 2002}, {"source": "12", "target": "33", "source_name": "graphics processor", "target_name": "parallel processing", "weight": 1.0, "year": 2002}, {"source": "14", "target": "43", "source_name": "human perception", "target_name": "virtual reality", "weight": 2.0, "year": 2002}, {"source": "14", "target": "50", "source_name": "human perception", "target_name": "user interface", "weight": 2.0, "year": 2002}, {"source": "14", "target": "60", "source_name": "human perception", "target_name": "floating point", "weight": 2.0, "year": 2002}, {"source": "14", "target": "71", "source_name": "human perception", "target_name": "embedded systems", "weight": 2.0, "year": 2002}, {"source": "21", "target": "50", "source_name": "graphical interface", "target_name": "user interface", "weight": 1.0, "year": 2002}, {"source": "21", "target": "86", "source_name": "graphical interface", "target_name": "graphical user interface", "weight": 2.0, "year": 2002}, {"source": "23", "target": "43", "source_name": "modeling language", "target_name": "virtual reality", "weight": 1.0, "year": 2002}, {"source": "33", "target": "43", "source_name": "parallel processing", "target_name": "virtual reality", "weight": 1.0, "year": 2002}, {"source": "36", "target": "82", "source_name": "data visualization", "target_name": "data mining", "weight": 1.0, "year": 2002}, {"source": "38", "target": "77", "source_name": "vector graphics", "target_name": "scalable vector graphics", "weight": 4.0, "year": 2002}, {"source": "43", "target": "47", "source_name": "virtual reality", "target_name": "descriptive geometry", "weight": 1.0, "year": 2002}, {"source": "43", "target": "50", "source_name": "virtual reality", "target_name": "user interface", "weight": 3.0, "year": 2002}, {"source": "43", "target": "60", "source_name": "virtual reality", "target_name": "floating point", "weight": 2.0, "year": 2002}, {"source": "43", "target": "61", "source_name": "virtual reality", "target_name": "hong kong", "weight": 1.0, "year": 2002}, {"source": "43", "target": "64", "source_name": "virtual reality", "target_name": "scientific visualization", "weight": 1.0, "year": 2002}, {"source": "43", "target": "67", "source_name": "virtual reality", "target_name": "image processing", "weight": 1.0, "year": 2002}, {"source": "43", "target": "71", "source_name": "virtual reality", "target_name": "embedded systems", "weight": 2.0, "year": 2002}, {"source": "47", "target": "64", "source_name": "descriptive geometry", "target_name": "scientific visualization", "weight": 1.0, "year": 2002}, {"source": "47", "target": "67", "source_name": "descriptive geometry", "target_name": "image processing", "weight": 1.0, "year": 2002}, {"source": "50", "target": "60", "source_name": "user interface", "target_name": "floating point", "weight": 2.0, "year": 2002}, {"source": "50", "target": "62", "source_name": "user interface", "target_name": "pattern recognition", "weight": 1.0, "year": 2002}, {"source": "50", "target": "71", "source_name": "user interface", "target_name": "embedded systems", "weight": 2.0, "year": 2002}, {"source": "50", "target": "73", "source_name": "user interface", "target_name": "engineering drawing", "weight": 1.0, "year": 2002}, {"source": "50", "target": "82", "source_name": "user interface", "target_name": "data mining", "weight": 1.0, "year": 2002}, {"source": "50", "target": "86", "source_name": "user interface", "target_name": "graphical user interface", "weight": 9.0, "year": 2002}, {"source": "51", "target": "78", "source_name": "global illumination", "target_name": "ray tracing", "weight": 1.0, "year": 2002}, {"source": "51", "target": "79", "source_name": "global illumination", "target_name": "geometric modeling", "weight": 1.0, "year": 2002}, {"source": "60", "target": "71", "source_name": "floating point", "target_name": "embedded systems", "weight": 2.0, "year": 2002}, {"source": "62", "target": "73", "source_name": "pattern recognition", "target_name": "engineering drawing", "weight": 1.0, "year": 2002}, {"source": "63", "target": "71", "source_name": "signal processing", "target_name": "embedded systems", "weight": 1.0, "year": 2002}, {"source": "64", "target": "67", "source_name": "scientific visualization", "target_name": "image processing", "weight": 1.0, "year": 2002}, {"source": "65", "target": "67", "source_name": "programming language", "target_name": "image processing", "weight": 1.0, "year": 2002}, {"source": "78", "target": "79", "source_name": "ray tracing", "target_name": "geometric modeling", "weight": 1.0, "year": 2002}, {"source": "79", "target": "85", "source_name": "geometric modeling", "target_name": "artificial intelligence", "weight": 1.0, "year": 2002}, {"source": "80", "target": "85", "source_name": "virtual environments", "target_name": "artificial intelligence", "weight": 1.0, "year": 2002}, {"source": "82", "target": "86", "source_name": "data mining", "target_name": "graphical user interface", "weight": 1.0, "year": 2002}]}, {"2003": [{"source": "1", "target": "36", "source_name": "web page", "target_name": "data visualization", "weight": 1.0, "year": 2003}, {"source": "1", "target": "38", "source_name": "web page", "target_name": "vector graphics", "weight": 1.0, "year": 2003}, {"source": "1", "target": "77", "source_name": "web page", "target_name": "scalable vector graphics", "weight": 1.0, "year": 2003}, {"source": "1", "target": "82", "source_name": "web page", "target_name": "data mining", "weight": 1.0, "year": 2003}, {"source": "2", "target": "15", "source_name": "visual communication", "target_name": "problem solving", "weight": 1.0, "year": 2003}, {"source": "2", "target": "30", "source_name": "visual communication", "target_name": "graphic designer", "weight": 1.0, "year": 2003}, {"source": "6", "target": "50", "source_name": "parallel computing", "target_name": "user interface", "weight": 1.0, "year": 2003}, {"source": "6", "target": "86", "source_name": "parallel computing", "target_name": "graphical user interface", "weight": 1.0, "year": 2003}, {"source": "7", "target": "67", "source_name": "data acquisition", "target_name": "image processing", "weight": 1.0, "year": 2003}, {"source": "9", "target": "21", "source_name": "object oriented", "target_name": "graphical interface", "weight": 1.0, "year": 2003}, {"source": "9", "target": "79", "source_name": "object oriented", "target_name": "geometric modeling", "weight": 1.0, "year": 2003}, {"source": "9", "target": "85", "source_name": "object oriented", "target_name": "artificial intelligence", "weight": 1.0, "year": 2003}, {"source": "11", "target": "50", "source_name": "software engineering", "target_name": "user interface", "weight": 1.0, "year": 2003}, {"source": "12", "target": "33", "source_name": "graphics processor", "target_name": "parallel processing", "weight": 1.0, "year": 2003}, {"source": "13", "target": "43", "source_name": "augmented reality", "target_name": "virtual reality", "weight": 1.0, "year": 2003}, {"source": "13", "target": "67", "source_name": "augmented reality", "target_name": "image processing", "weight": 1.0, "year": 2003}, {"source": "14", "target": "43", "source_name": "human perception", "target_name": "virtual reality", "weight": 2.0, "year": 2003}, {"source": "14", "target": "50", "source_name": "human perception", "target_name": "user interface", "weight": 2.0, "year": 2003}, {"source": "14", "target": "60", "source_name": "human perception", "target_name": "floating point", "weight": 2.0, "year": 2003}, {"source": "14", "target": "71", "source_name": "human perception", "target_name": "embedded systems", "weight": 2.0, "year": 2003}, {"source": "21", "target": "44", "source_name": "graphical interface", "target_name": "source code", "weight": 1.0, "year": 2003}, {"source": "21", "target": "50", "source_name": "graphical interface", "target_name": "user interface", "weight": 1.0, "year": 2003}, {"source": "21", "target": "65", "source_name": "graphical interface", "target_name": "programming language", "weight": 1.0, "year": 2003}, {"source": "21", "target": "86", "source_name": "graphical interface", "target_name": "graphical user interface", "weight": 3.0, "year": 2003}, {"source": "23", "target": "43", "source_name": "modeling language", "target_name": "virtual reality", "weight": 1.0, "year": 2003}, {"source": "23", "target": "50", "source_name": "modeling language", "target_name": "user interface", "weight": 1.0, "year": 2003}, {"source": "30", "target": "61", "source_name": "graphic designer", "target_name": "hong kong", "weight": 1.0, "year": 2003}, {"source": "33", "target": "43", "source_name": "parallel processing", "target_name": "virtual reality", "weight": 1.0, "year": 2003}, {"source": "36", "target": "82", "source_name": "data visualization", "target_name": "data mining", "weight": 1.0, "year": 2003}, {"source": "38", "target": "77", "source_name": "vector graphics", "target_name": "scalable vector graphics", "weight": 5.0, "year": 2003}, {"source": "43", "target": "47", "source_name": "virtual reality", "target_name": "descriptive geometry", "weight": 1.0, "year": 2003}, {"source": "43", "target": "50", "source_name": "virtual reality", "target_name": "user interface", "weight": 3.0, "year": 2003}, {"source": "43", "target": "60", "source_name": "virtual reality", "target_name": "floating point", "weight": 2.0, "year": 2003}, {"source": "43", "target": "61", "source_name": "virtual reality", "target_name": "hong kong", "weight": 1.0, "year": 2003}, {"source": "43", "target": "64", "source_name": "virtual reality", "target_name": "scientific visualization", "weight": 1.0, "year": 2003}, {"source": "43", "target": "67", "source_name": "virtual reality", "target_name": "image processing", "weight": 2.0, "year": 2003}, {"source": "43", "target": "71", "source_name": "virtual reality", "target_name": "embedded systems", "weight": 2.0, "year": 2003}, {"source": "44", "target": "65", "source_name": "source code", "target_name": "programming language", "weight": 1.0, "year": 2003}, {"source": "44", "target": "86", "source_name": "source code", "target_name": "graphical user interface", "weight": 1.0, "year": 2003}, {"source": "45", "target": "67", "source_name": "international conference", "target_name": "image processing", "weight": 1.0, "year": 2003}, {"source": "45", "target": "70", "source_name": "international conference", "target_name": "solid modeling", "weight": 1.0, "year": 2003}, {"source": "47", "target": "64", "source_name": "descriptive geometry", "target_name": "scientific visualization", "weight": 1.0, "year": 2003}, {"source": "47", "target": "67", "source_name": "descriptive geometry", "target_name": "image processing", "weight": 1.0, "year": 2003}, {"source": "50", "target": "60", "source_name": "user interface", "target_name": "floating point", "weight": 2.0, "year": 2003}, {"source": "50", "target": "62", "source_name": "user interface", "target_name": "pattern recognition", "weight": 1.0, "year": 2003}, {"source": "50", "target": "71", "source_name": "user interface", "target_name": "embedded systems", "weight": 2.0, "year": 2003}, {"source": "50", "target": "73", "source_name": "user interface", "target_name": "engineering drawing", "weight": 1.0, "year": 2003}, {"source": "50", "target": "82", "source_name": "user interface", "target_name": "data mining", "weight": 1.0, "year": 2003}, {"source": "50", "target": "86", "source_name": "user interface", "target_name": "graphical user interface", "weight": 10.0, "year": 2003}, {"source": "51", "target": "78", "source_name": "global illumination", "target_name": "ray tracing", "weight": 1.0, "year": 2003}, {"source": "51", "target": "79", "source_name": "global illumination", "target_name": "geometric modeling", "weight": 1.0, "year": 2003}, {"source": "52", "target": "83", "source_name": "graphics cards", "target_name": "graphics processing unit", "weight": 1.0, "year": 2003}, {"source": "60", "target": "71", "source_name": "floating point", "target_name": "embedded systems", "weight": 2.0, "year": 2003}, {"source": "62", "target": "73", "source_name": "pattern recognition", "target_name": "engineering drawing", "weight": 1.0, "year": 2003}, {"source": "63", "target": "71", "source_name": "signal processing", "target_name": "embedded systems", "weight": 1.0, "year": 2003}, {"source": "64", "target": "67", "source_name": "scientific visualization", "target_name": "image processing", "weight": 1.0, "year": 2003}, {"source": "65", "target": "67", "source_name": "programming language", "target_name": "image processing", "weight": 1.0, "year": 2003}, {"source": "65", "target": "86", "source_name": "programming language", "target_name": "graphical user interface", "weight": 1.0, "year": 2003}, {"source": "67", "target": "70", "source_name": "image processing", "target_name": "solid modeling", "weight": 1.0, "year": 2003}, {"source": "78", "target": "79", "source_name": "ray tracing", "target_name": "geometric modeling", "weight": 1.0, "year": 2003}, {"source": "79", "target": "85", "source_name": "geometric modeling", "target_name": "artificial intelligence", "weight": 1.0, "year": 2003}, {"source": "80", "target": "85", "source_name": "virtual environments", "target_name": "artificial intelligence", "weight": 1.0, "year": 2003}, {"source": "82", "target": "86", "source_name": "data mining", "target_name": "graphical user interface", "weight": 1.0, "year": 2003}, {"source": "85", "target": "86", "source_name": "artificial intelligence", "target_name": "graphical user interface", "weight": 1.0, "year": 2003}]}, {"2004": [{"source": "1", "target": "36", "source_name": "web page", "target_name": "data visualization", "weight": 1.0, "year": 2004}, {"source": "1", "target": "38", "source_name": "web page", "target_name": "vector graphics", "weight": 1.0, "year": 2004}, {"source": "1", "target": "77", "source_name": "web page", "target_name": "scalable vector graphics", "weight": 1.0, "year": 2004}, {"source": "1", "target": "82", "source_name": "web page", "target_name": "data mining", "weight": 1.0, "year": 2004}, {"source": "2", "target": "15", "source_name": "visual communication", "target_name": "problem solving", "weight": 1.0, "year": 2004}, {"source": "2", "target": "30", "source_name": "visual communication", "target_name": "graphic designer", "weight": 1.0, "year": 2004}, {"source": "2", "target": "50", "source_name": "visual communication", "target_name": "user interface", "weight": 1.0, "year": 2004}, {"source": "2", "target": "86", "source_name": "visual communication", "target_name": "graphical user interface", "weight": 1.0, "year": 2004}, {"source": "6", "target": "50", "source_name": "parallel computing", "target_name": "user interface", "weight": 1.0, "year": 2004}, {"source": "6", "target": "86", "source_name": "parallel computing", "target_name": "graphical user interface", "weight": 1.0, "year": 2004}, {"source": "7", "target": "21", "source_name": "data acquisition", "target_name": "graphical interface", "weight": 1.0, "year": 2004}, {"source": "7", "target": "50", "source_name": "data acquisition", "target_name": "user interface", "weight": 1.0, "year": 2004}, {"source": "7", "target": "67", "source_name": "data acquisition", "target_name": "image processing", "weight": 1.0, "year": 2004}, {"source": "9", "target": "21", "source_name": "object oriented", "target_name": "graphical interface", "weight": 1.0, "year": 2004}, {"source": "9", "target": "79", "source_name": "object oriented", "target_name": "geometric modeling", "weight": 1.0, "year": 2004}, {"source": "9", "target": "85", "source_name": "object oriented", "target_name": "artificial intelligence", "weight": 1.0, "year": 2004}, {"source": "10", "target": "69", "source_name": "mobile phone", "target_name": "mobile devices", "weight": 1.0, "year": 2004}, {"source": "11", "target": "33", "source_name": "software engineering", "target_name": "parallel processing", "weight": 1.0, "year": 2004}, {"source": "11", "target": "36", "source_name": "software engineering", "target_name": "data visualization", "weight": 1.0, "year": 2004}, {"source": "11", "target": "43", "source_name": "software engineering", "target_name": "virtual reality", "weight": 1.0, "year": 2004}, {"source": "11", "target": "50", "source_name": "software engineering", "target_name": "user interface", "weight": 1.0, "year": 2004}, {"source": "11", "target": "51", "source_name": "software engineering", "target_name": "global illumination", "weight": 1.0, "year": 2004}, {"source": "11", "target": "52", "source_name": "software engineering", "target_name": "graphics cards", "weight": 1.0, "year": 2004}, {"source": "11", "target": "78", "source_name": "software engineering", "target_name": "ray tracing", "weight": 1.0, "year": 2004}, {"source": "12", "target": "33", "source_name": "graphics processor", "target_name": "parallel processing", "weight": 1.0, "year": 2004}, {"source": "13", "target": "43", "source_name": "augmented reality", "target_name": "virtual reality", "weight": 1.0, "year": 2004}, {"source": "13", "target": "67", "source_name": "augmented reality", "target_name": "image processing", "weight": 1.0, "year": 2004}, {"source": "14", "target": "43", "source_name": "human perception", "target_name": "virtual reality", "weight": 2.0, "year": 2004}, {"source": "14", "target": "50", "source_name": "human perception", "target_name": "user interface", "weight": 2.0, "year": 2004}, {"source": "14", "target": "60", "source_name": "human perception", "target_name": "floating point", "weight": 2.0, "year": 2004}, {"source": "14", "target": "71", "source_name": "human perception", "target_name": "embedded systems", "weight": 2.0, "year": 2004}, {"source": "14", "target": "80", "source_name": "human perception", "target_name": "virtual environments", "weight": 1.0, "year": 2004}, {"source": "21", "target": "44", "source_name": "graphical interface", "target_name": "source code", "weight": 1.0, "year": 2004}, {"source": "21", "target": "50", "source_name": "graphical interface", "target_name": "user interface", "weight": 1.0, "year": 2004}, {"source": "21", "target": "65", "source_name": "graphical interface", "target_name": "programming language", "weight": 1.0, "year": 2004}, {"source": "21", "target": "86", "source_name": "graphical interface", "target_name": "graphical user interface", "weight": 3.0, "year": 2004}, {"source": "23", "target": "43", "source_name": "modeling language", "target_name": "virtual reality", "weight": 1.0, "year": 2004}, {"source": "23", "target": "50", "source_name": "modeling language", "target_name": "user interface", "weight": 1.0, "year": 2004}, {"source": "30", "target": "61", "source_name": "graphic designer", "target_name": "hong kong", "weight": 1.0, "year": 2004}, {"source": "31", "target": "37", "source_name": "magnetic field", "target_name": "eddy current", "weight": 1.0, "year": 2004}, {"source": "31", "target": "50", "source_name": "magnetic field", "target_name": "user interface", "weight": 1.0, "year": 2004}, {"source": "33", "target": "43", "source_name": "parallel processing", "target_name": "virtual reality", "weight": 2.0, "year": 2004}, {"source": "33", "target": "51", "source_name": "parallel processing", "target_name": "global illumination", "weight": 1.0, "year": 2004}, {"source": "33", "target": "52", "source_name": "parallel processing", "target_name": "graphics cards", "weight": 1.0, "year": 2004}, {"source": "33", "target": "78", "source_name": "parallel processing", "target_name": "ray tracing", "weight": 1.0, "year": 2004}, {"source": "36", "target": "82", "source_name": "data visualization", "target_name": "data mining", "weight": 1.0, "year": 2004}, {"source": "37", "target": "50", "source_name": "eddy current", "target_name": "user interface", "weight": 1.0, "year": 2004}, {"source": "38", "target": "77", "source_name": "vector graphics", "target_name": "scalable vector graphics", "weight": 7.0, "year": 2004}, {"source": "43", "target": "47", "source_name": "virtual reality", "target_name": "descriptive geometry", "weight": 1.0, "year": 2004}, {"source": "43", "target": "50", "source_name": "virtual reality", "target_name": "user interface", "weight": 3.0, "year": 2004}, {"source": "43", "target": "51", "source_name": "virtual reality", "target_name": "global illumination", "weight": 1.0, "year": 2004}, {"source": "43", "target": "52", "source_name": "virtual reality", "target_name": "graphics cards", "weight": 1.0, "year": 2004}, {"source": "43", "target": "60", "source_name": "virtual reality", "target_name": "floating point", "weight": 2.0, "year": 2004}, {"source": "43", "target": "61", "source_name": "virtual reality", "target_name": "hong kong", "weight": 1.0, "year": 2004}, {"source": "43", "target": "64", "source_name": "virtual reality", "target_name": "scientific visualization", "weight": 1.0, "year": 2004}, {"source": "43", "target": "67", "source_name": "virtual reality", "target_name": "image processing", "weight": 2.0, "year": 2004}, {"source": "43", "target": "71", "source_name": "virtual reality", "target_name": "embedded systems", "weight": 2.0, "year": 2004}, {"source": "43", "target": "78", "source_name": "virtual reality", "target_name": "ray tracing", "weight": 1.0, "year": 2004}, {"source": "44", "target": "50", "source_name": "source code", "target_name": "user interface", "weight": 1.0, "year": 2004}, {"source": "44", "target": "65", "source_name": "source code", "target_name": "programming language", "weight": 1.0, "year": 2004}, {"source": "44", "target": "79", "source_name": "source code", "target_name": "geometric modeling", "weight": 1.0, "year": 2004}, {"source": "44", "target": "86", "source_name": "source code", "target_name": "graphical user interface", "weight": 2.0, "year": 2004}, {"source": "45", "target": "67", "source_name": "international conference", "target_name": "image processing", "weight": 1.0, "year": 2004}, {"source": "45", "target": "70", "source_name": "international conference", "target_name": "solid modeling", "weight": 1.0, "year": 2004}, {"source": "47", "target": "64", "source_name": "descriptive geometry", "target_name": "scientific visualization", "weight": 1.0, "year": 2004}, {"source": "47", "target": "67", "source_name": "descriptive geometry", "target_name": "image processing", "weight": 1.0, "year": 2004}, {"source": "50", "target": "60", "source_name": "user interface", "target_name": "floating point", "weight": 2.0, "year": 2004}, {"source": "50", "target": "62", "source_name": "user interface", "target_name": "pattern recognition", "weight": 1.0, "year": 2004}, {"source": "50", "target": "71", "source_name": "user interface", "target_name": "embedded systems", "weight": 2.0, "year": 2004}, {"source": "50", "target": "73", "source_name": "user interface", "target_name": "engineering drawing", "weight": 1.0, "year": 2004}, {"source": "50", "target": "82", "source_name": "user interface", "target_name": "data mining", "weight": 1.0, "year": 2004}, {"source": "50", "target": "86", "source_name": "user interface", "target_name": "graphical user interface", "weight": 12.0, "year": 2004}, {"source": "51", "target": "52", "source_name": "global illumination", "target_name": "graphics cards", "weight": 1.0, "year": 2004}, {"source": "51", "target": "78", "source_name": "global illumination", "target_name": "ray tracing", "weight": 2.0, "year": 2004}, {"source": "51", "target": "79", "source_name": "global illumination", "target_name": "geometric modeling", "weight": 1.0, "year": 2004}, {"source": "52", "target": "60", "source_name": "graphics cards", "target_name": "floating point", "weight": 1.0, "year": 2004}, {"source": "52", "target": "78", "source_name": "graphics cards", "target_name": "ray tracing", "weight": 1.0, "year": 2004}, {"source": "52", "target": "83", "source_name": "graphics cards", "target_name": "graphics processing unit", "weight": 1.0, "year": 2004}, {"source": "60", "target": "71", "source_name": "floating point", "target_name": "embedded systems", "weight": 2.0, "year": 2004}, {"source": "62", "target": "73", "source_name": "pattern recognition", "target_name": "engineering drawing", "weight": 1.0, "year": 2004}, {"source": "63", "target": "71", "source_name": "signal processing", "target_name": "embedded systems", "weight": 1.0, "year": 2004}, {"source": "64", "target": "67", "source_name": "scientific visualization", "target_name": "image processing", "weight": 1.0, "year": 2004}, {"source": "65", "target": "67", "source_name": "programming language", "target_name": "image processing", "weight": 1.0, "year": 2004}, {"source": "65", "target": "86", "source_name": "programming language", "target_name": "graphical user interface", "weight": 1.0, "year": 2004}, {"source": "67", "target": "70", "source_name": "image processing", "target_name": "solid modeling", "weight": 1.0, "year": 2004}, {"source": "78", "target": "79", "source_name": "ray tracing", "target_name": "geometric modeling", "weight": 1.0, "year": 2004}, {"source": "79", "target": "85", "source_name": "geometric modeling", "target_name": "artificial intelligence", "weight": 1.0, "year": 2004}, {"source": "80", "target": "85", "source_name": "virtual environments", "target_name": "artificial intelligence", "weight": 1.0, "year": 2004}, {"source": "82", "target": "86", "source_name": "data mining", "target_name": "graphical user interface", "weight": 1.0, "year": 2004}, {"source": "85", "target": "86", "source_name": "artificial intelligence", "target_name": "graphical user interface", "weight": 1.0, "year": 2004}]}, {"2005": [{"source": "1", "target": "36", "source_name": "web page", "target_name": "data visualization", "weight": 1.0, "year": 2005}, {"source": "1", "target": "38", "source_name": "web page", "target_name": "vector graphics", "weight": 1.0, "year": 2005}, {"source": "1", "target": "77", "source_name": "web page", "target_name": "scalable vector graphics", "weight": 1.0, "year": 2005}, {"source": "1", "target": "82", "source_name": "web page", "target_name": "data mining", "weight": 1.0, "year": 2005}, {"source": "2", "target": "15", "source_name": "visual communication", "target_name": "problem solving", "weight": 1.0, "year": 2005}, {"source": "2", "target": "30", "source_name": "visual communication", "target_name": "graphic designer", "weight": 1.0, "year": 2005}, {"source": "2", "target": "50", "source_name": "visual communication", "target_name": "user interface", "weight": 1.0, "year": 2005}, {"source": "2", "target": "86", "source_name": "visual communication", "target_name": "graphical user interface", "weight": 1.0, "year": 2005}, {"source": "6", "target": "50", "source_name": "parallel computing", "target_name": "user interface", "weight": 1.0, "year": 2005}, {"source": "6", "target": "86", "source_name": "parallel computing", "target_name": "graphical user interface", "weight": 1.0, "year": 2005}, {"source": "7", "target": "21", "source_name": "data acquisition", "target_name": "graphical interface", "weight": 1.0, "year": 2005}, {"source": "7", "target": "50", "source_name": "data acquisition", "target_name": "user interface", "weight": 1.0, "year": 2005}, {"source": "7", "target": "67", "source_name": "data acquisition", "target_name": "image processing", "weight": 1.0, "year": 2005}, {"source": "8", "target": "50", "source_name": "future directions", "target_name": "user interface", "weight": 1.0, "year": 2005}, {"source": "8", "target": "86", "source_name": "future directions", "target_name": "graphical user interface", "weight": 1.0, "year": 2005}, {"source": "9", "target": "21", "source_name": "object oriented", "target_name": "graphical interface", "weight": 1.0, "year": 2005}, {"source": "9", "target": "79", "source_name": "object oriented", "target_name": "geometric modeling", "weight": 1.0, "year": 2005}, {"source": "9", "target": "85", "source_name": "object oriented", "target_name": "artificial intelligence", "weight": 1.0, "year": 2005}, {"source": "10", "target": "69", "source_name": "mobile phone", "target_name": "mobile devices", "weight": 3.0, "year": 2005}, {"source": "11", "target": "33", "source_name": "software engineering", "target_name": "parallel processing", "weight": 1.0, "year": 2005}, {"source": "11", "target": "36", "source_name": "software engineering", "target_name": "data visualization", "weight": 1.0, "year": 2005}, {"source": "11", "target": "43", "source_name": "software engineering", "target_name": "virtual reality", "weight": 1.0, "year": 2005}, {"source": "11", "target": "50", "source_name": "software engineering", "target_name": "user interface", "weight": 1.0, "year": 2005}, {"source": "11", "target": "51", "source_name": "software engineering", "target_name": "global illumination", "weight": 1.0, "year": 2005}, {"source": "11", "target": "52", "source_name": "software engineering", "target_name": "graphics cards", "weight": 1.0, "year": 2005}, {"source": "11", "target": "78", "source_name": "software engineering", "target_name": "ray tracing", "weight": 1.0, "year": 2005}, {"source": "12", "target": "33", "source_name": "graphics processor", "target_name": "parallel processing", "weight": 1.0, "year": 2005}, {"source": "13", "target": "43", "source_name": "augmented reality", "target_name": "virtual reality", "weight": 1.0, "year": 2005}, {"source": "13", "target": "67", "source_name": "augmented reality", "target_name": "image processing", "weight": 1.0, "year": 2005}, {"source": "14", "target": "43", "source_name": "human perception", "target_name": "virtual reality", "weight": 2.0, "year": 2005}, {"source": "14", "target": "50", "source_name": "human perception", "target_name": "user interface", "weight": 2.0, "year": 2005}, {"source": "14", "target": "60", "source_name": "human perception", "target_name": "floating point", "weight": 2.0, "year": 2005}, {"source": "14", "target": "71", "source_name": "human perception", "target_name": "embedded systems", "weight": 2.0, "year": 2005}, {"source": "14", "target": "80", "source_name": "human perception", "target_name": "virtual environments", "weight": 1.0, "year": 2005}, {"source": "20", "target": "47", "source_name": "higher education", "target_name": "descriptive geometry", "weight": 1.0, "year": 2005}, {"source": "21", "target": "23", "source_name": "graphical interface", "target_name": "modeling language", "weight": 1.0, "year": 2005}, {"source": "21", "target": "44", "source_name": "graphical interface", "target_name": "source code", "weight": 1.0, "year": 2005}, {"source": "21", "target": "50", "source_name": "graphical interface", "target_name": "user interface", "weight": 1.0, "year": 2005}, {"source": "21", "target": "65", "source_name": "graphical interface", "target_name": "programming language", "weight": 1.0, "year": 2005}, {"source": "21", "target": "86", "source_name": "graphical interface", "target_name": "graphical user interface", "weight": 3.0, "year": 2005}, {"source": "23", "target": "43", "source_name": "modeling language", "target_name": "virtual reality", "weight": 1.0, "year": 2005}, {"source": "23", "target": "50", "source_name": "modeling language", "target_name": "user interface", "weight": 1.0, "year": 2005}, {"source": "30", "target": "38", "source_name": "graphic designer", "target_name": "vector graphics", "weight": 1.0, "year": 2005}, {"source": "30", "target": "61", "source_name": "graphic designer", "target_name": "hong kong", "weight": 1.0, "year": 2005}, {"source": "30", "target": "86", "source_name": "graphic designer", "target_name": "graphical user interface", "weight": 1.0, "year": 2005}, {"source": "31", "target": "37", "source_name": "magnetic field", "target_name": "eddy current", "weight": 1.0, "year": 2005}, {"source": "31", "target": "50", "source_name": "magnetic field", "target_name": "user interface", "weight": 1.0, "year": 2005}, {"source": "33", "target": "43", "source_name": "parallel processing", "target_name": "virtual reality", "weight": 2.0, "year": 2005}, {"source": "33", "target": "51", "source_name": "parallel processing", "target_name": "global illumination", "weight": 1.0, "year": 2005}, {"source": "33", "target": "52", "source_name": "parallel processing", "target_name": "graphics cards", "weight": 1.0, "year": 2005}, {"source": "33", "target": "78", "source_name": "parallel processing", "target_name": "ray tracing", "weight": 1.0, "year": 2005}, {"source": "36", "target": "82", "source_name": "data visualization", "target_name": "data mining", "weight": 1.0, "year": 2005}, {"source": "37", "target": "50", "source_name": "eddy current", "target_name": "user interface", "weight": 1.0, "year": 2005}, {"source": "38", "target": "77", "source_name": "vector graphics", "target_name": "scalable vector graphics", "weight": 9.0, "year": 2005}, {"source": "38", "target": "86", "source_name": "vector graphics", "target_name": "graphical user interface", "weight": 1.0, "year": 2005}, {"source": "39", "target": "50", "source_name": "display device", "target_name": "user interface", "weight": 2.0, "year": 2005}, {"source": "43", "target": "47", "source_name": "virtual reality", "target_name": "descriptive geometry", "weight": 1.0, "year": 2005}, {"source": "43", "target": "50", "source_name": "virtual reality", "target_name": "user interface", "weight": 4.0, "year": 2005}, {"source": "43", "target": "51", "source_name": "virtual reality", "target_name": "global illumination", "weight": 1.0, "year": 2005}, {"source": "43", "target": "52", "source_name": "virtual reality", "target_name": "graphics cards", "weight": 1.0, "year": 2005}, {"source": "43", "target": "60", "source_name": "virtual reality", "target_name": "floating point", "weight": 2.0, "year": 2005}, {"source": "43", "target": "61", "source_name": "virtual reality", "target_name": "hong kong", "weight": 1.0, "year": 2005}, {"source": "43", "target": "64", "source_name": "virtual reality", "target_name": "scientific visualization", "weight": 1.0, "year": 2005}, {"source": "43", "target": "67", "source_name": "virtual reality", "target_name": "image processing", "weight": 2.0, "year": 2005}, {"source": "43", "target": "71", "source_name": "virtual reality", "target_name": "embedded systems", "weight": 2.0, "year": 2005}, {"source": "43", "target": "78", "source_name": "virtual reality", "target_name": "ray tracing", "weight": 1.0, "year": 2005}, {"source": "44", "target": "50", "source_name": "source code", "target_name": "user interface", "weight": 1.0, "year": 2005}, {"source": "44", "target": "65", "source_name": "source code", "target_name": "programming language", "weight": 1.0, "year": 2005}, {"source": "44", "target": "79", "source_name": "source code", "target_name": "geometric modeling", "weight": 1.0, "year": 2005}, {"source": "44", "target": "86", "source_name": "source code", "target_name": "graphical user interface", "weight": 2.0, "year": 2005}, {"source": "45", "target": "67", "source_name": "international conference", "target_name": "image processing", "weight": 1.0, "year": 2005}, {"source": "45", "target": "70", "source_name": "international conference", "target_name": "solid modeling", "weight": 1.0, "year": 2005}, {"source": "47", "target": "64", "source_name": "descriptive geometry", "target_name": "scientific visualization", "weight": 1.0, "year": 2005}, {"source": "47", "target": "67", "source_name": "descriptive geometry", "target_name": "image processing", "weight": 1.0, "year": 2005}, {"source": "50", "target": "60", "source_name": "user interface", "target_name": "floating point", "weight": 2.0, "year": 2005}, {"source": "50", "target": "62", "source_name": "user interface", "target_name": "pattern recognition", "weight": 1.0, "year": 2005}, {"source": "50", "target": "71", "source_name": "user interface", "target_name": "embedded systems", "weight": 2.0, "year": 2005}, {"source": "50", "target": "73", "source_name": "user interface", "target_name": "engineering drawing", "weight": 1.0, "year": 2005}, {"source": "50", "target": "82", "source_name": "user interface", "target_name": "data mining", "weight": 1.0, "year": 2005}, {"source": "50", "target": "86", "source_name": "user interface", "target_name": "graphical user interface", "weight": 14.0, "year": 2005}, {"source": "51", "target": "52", "source_name": "global illumination", "target_name": "graphics cards", "weight": 1.0, "year": 2005}, {"source": "51", "target": "78", "source_name": "global illumination", "target_name": "ray tracing", "weight": 2.0, "year": 2005}, {"source": "51", "target": "79", "source_name": "global illumination", "target_name": "geometric modeling", "weight": 1.0, "year": 2005}, {"source": "52", "target": "60", "source_name": "graphics cards", "target_name": "floating point", "weight": 1.0, "year": 2005}, {"source": "52", "target": "78", "source_name": "graphics cards", "target_name": "ray tracing", "weight": 1.0, "year": 2005}, {"source": "52", "target": "83", "source_name": "graphics cards", "target_name": "graphics processing unit", "weight": 1.0, "year": 2005}, {"source": "60", "target": "71", "source_name": "floating point", "target_name": "embedded systems", "weight": 2.0, "year": 2005}, {"source": "62", "target": "73", "source_name": "pattern recognition", "target_name": "engineering drawing", "weight": 1.0, "year": 2005}, {"source": "63", "target": "71", "source_name": "signal processing", "target_name": "embedded systems", "weight": 1.0, "year": 2005}, {"source": "64", "target": "67", "source_name": "scientific visualization", "target_name": "image processing", "weight": 1.0, "year": 2005}, {"source": "65", "target": "67", "source_name": "programming language", "target_name": "image processing", "weight": 1.0, "year": 2005}, {"source": "65", "target": "86", "source_name": "programming language", "target_name": "graphical user interface", "weight": 1.0, "year": 2005}, {"source": "67", "target": "70", "source_name": "image processing", "target_name": "solid modeling", "weight": 1.0, "year": 2005}, {"source": "67", "target": "83", "source_name": "image processing", "target_name": "graphics processing unit", "weight": 1.0, "year": 2005}, {"source": "78", "target": "79", "source_name": "ray tracing", "target_name": "geometric modeling", "weight": 1.0, "year": 2005}, {"source": "79", "target": "85", "source_name": "geometric modeling", "target_name": "artificial intelligence", "weight": 1.0, "year": 2005}, {"source": "80", "target": "85", "source_name": "virtual environments", "target_name": "artificial intelligence", "weight": 1.0, "year": 2005}, {"source": "82", "target": "86", "source_name": "data mining", "target_name": "graphical user interface", "weight": 1.0, "year": 2005}, {"source": "85", "target": "86", "source_name": "artificial intelligence", "target_name": "graphical user interface", "weight": 1.0, "year": 2005}]}, {"2006": [{"source": "1", "target": "36", "source_name": "web page", "target_name": "data visualization", "weight": 1.0, "year": 2006}, {"source": "1", "target": "38", "source_name": "web page", "target_name": "vector graphics", "weight": 1.0, "year": 2006}, {"source": "1", "target": "77", "source_name": "web page", "target_name": "scalable vector graphics", "weight": 1.0, "year": 2006}, {"source": "1", "target": "82", "source_name": "web page", "target_name": "data mining", "weight": 1.0, "year": 2006}, {"source": "2", "target": "15", "source_name": "visual communication", "target_name": "problem solving", "weight": 1.0, "year": 2006}, {"source": "2", "target": "30", "source_name": "visual communication", "target_name": "graphic designer", "weight": 1.0, "year": 2006}, {"source": "2", "target": "50", "source_name": "visual communication", "target_name": "user interface", "weight": 1.0, "year": 2006}, {"source": "2", "target": "86", "source_name": "visual communication", "target_name": "graphical user interface", "weight": 1.0, "year": 2006}, {"source": "6", "target": "50", "source_name": "parallel computing", "target_name": "user interface", "weight": 1.0, "year": 2006}, {"source": "6", "target": "86", "source_name": "parallel computing", "target_name": "graphical user interface", "weight": 1.0, "year": 2006}, {"source": "7", "target": "21", "source_name": "data acquisition", "target_name": "graphical interface", "weight": 1.0, "year": 2006}, {"source": "7", "target": "50", "source_name": "data acquisition", "target_name": "user interface", "weight": 1.0, "year": 2006}, {"source": "7", "target": "67", "source_name": "data acquisition", "target_name": "image processing", "weight": 1.0, "year": 2006}, {"source": "8", "target": "50", "source_name": "future directions", "target_name": "user interface", "weight": 1.0, "year": 2006}, {"source": "8", "target": "86", "source_name": "future directions", "target_name": "graphical user interface", "weight": 1.0, "year": 2006}, {"source": "9", "target": "21", "source_name": "object oriented", "target_name": "graphical interface", "weight": 1.0, "year": 2006}, {"source": "9", "target": "79", "source_name": "object oriented", "target_name": "geometric modeling", "weight": 1.0, "year": 2006}, {"source": "9", "target": "85", "source_name": "object oriented", "target_name": "artificial intelligence", "weight": 1.0, "year": 2006}, {"source": "10", "target": "69", "source_name": "mobile phone", "target_name": "mobile devices", "weight": 3.0, "year": 2006}, {"source": "11", "target": "33", "source_name": "software engineering", "target_name": "parallel processing", "weight": 1.0, "year": 2006}, {"source": "11", "target": "36", "source_name": "software engineering", "target_name": "data visualization", "weight": 1.0, "year": 2006}, {"source": "11", "target": "43", "source_name": "software engineering", "target_name": "virtual reality", "weight": 1.0, "year": 2006}, {"source": "11", "target": "50", "source_name": "software engineering", "target_name": "user interface", "weight": 1.0, "year": 2006}, {"source": "11", "target": "51", "source_name": "software engineering", "target_name": "global illumination", "weight": 1.0, "year": 2006}, {"source": "11", "target": "52", "source_name": "software engineering", "target_name": "graphics cards", "weight": 1.0, "year": 2006}, {"source": "11", "target": "78", "source_name": "software engineering", "target_name": "ray tracing", "weight": 1.0, "year": 2006}, {"source": "12", "target": "33", "source_name": "graphics processor", "target_name": "parallel processing", "weight": 1.0, "year": 2006}, {"source": "13", "target": "43", "source_name": "augmented reality", "target_name": "virtual reality", "weight": 1.0, "year": 2006}, {"source": "13", "target": "67", "source_name": "augmented reality", "target_name": "image processing", "weight": 1.0, "year": 2006}, {"source": "14", "target": "43", "source_name": "human perception", "target_name": "virtual reality", "weight": 2.0, "year": 2006}, {"source": "14", "target": "50", "source_name": "human perception", "target_name": "user interface", "weight": 2.0, "year": 2006}, {"source": "14", "target": "60", "source_name": "human perception", "target_name": "floating point", "weight": 2.0, "year": 2006}, {"source": "14", "target": "71", "source_name": "human perception", "target_name": "embedded systems", "weight": 2.0, "year": 2006}, {"source": "14", "target": "80", "source_name": "human perception", "target_name": "virtual environments", "weight": 1.0, "year": 2006}, {"source": "16", "target": "53", "source_name": "high school", "target_name": "graphic novels", "weight": 1.0, "year": 2006}, {"source": "20", "target": "47", "source_name": "higher education", "target_name": "descriptive geometry", "weight": 1.0, "year": 2006}, {"source": "21", "target": "23", "source_name": "graphical interface", "target_name": "modeling language", "weight": 1.0, "year": 2006}, {"source": "21", "target": "44", "source_name": "graphical interface", "target_name": "source code", "weight": 1.0, "year": 2006}, {"source": "21", "target": "50", "source_name": "graphical interface", "target_name": "user interface", "weight": 1.0, "year": 2006}, {"source": "21", "target": "65", "source_name": "graphical interface", "target_name": "programming language", "weight": 1.0, "year": 2006}, {"source": "21", "target": "86", "source_name": "graphical interface", "target_name": "graphical user interface", "weight": 4.0, "year": 2006}, {"source": "23", "target": "43", "source_name": "modeling language", "target_name": "virtual reality", "weight": 1.0, "year": 2006}, {"source": "23", "target": "50", "source_name": "modeling language", "target_name": "user interface", "weight": 1.0, "year": 2006}, {"source": "30", "target": "38", "source_name": "graphic designer", "target_name": "vector graphics", "weight": 1.0, "year": 2006}, {"source": "30", "target": "61", "source_name": "graphic designer", "target_name": "hong kong", "weight": 1.0, "year": 2006}, {"source": "30", "target": "86", "source_name": "graphic designer", "target_name": "graphical user interface", "weight": 1.0, "year": 2006}, {"source": "31", "target": "37", "source_name": "magnetic field", "target_name": "eddy current", "weight": 1.0, "year": 2006}, {"source": "31", "target": "50", "source_name": "magnetic field", "target_name": "user interface", "weight": 1.0, "year": 2006}, {"source": "33", "target": "36", "source_name": "parallel processing", "target_name": "data visualization", "weight": 1.0, "year": 2006}, {"source": "33", "target": "43", "source_name": "parallel processing", "target_name": "virtual reality", "weight": 2.0, "year": 2006}, {"source": "33", "target": "51", "source_name": "parallel processing", "target_name": "global illumination", "weight": 1.0, "year": 2006}, {"source": "33", "target": "52", "source_name": "parallel processing", "target_name": "graphics cards", "weight": 1.0, "year": 2006}, {"source": "33", "target": "78", "source_name": "parallel processing", "target_name": "ray tracing", "weight": 1.0, "year": 2006}, {"source": "36", "target": "82", "source_name": "data visualization", "target_name": "data mining", "weight": 1.0, "year": 2006}, {"source": "37", "target": "50", "source_name": "eddy current", "target_name": "user interface", "weight": 1.0, "year": 2006}, {"source": "38", "target": "50", "source_name": "vector graphics", "target_name": "user interface", "weight": 1.0, "year": 2006}, {"source": "38", "target": "77", "source_name": "vector graphics", "target_name": "scalable vector graphics", "weight": 11.0, "year": 2006}, {"source": "38", "target": "86", "source_name": "vector graphics", "target_name": "graphical user interface", "weight": 1.0, "year": 2006}, {"source": "39", "target": "50", "source_name": "display device", "target_name": "user interface", "weight": 2.0, "year": 2006}, {"source": "43", "target": "47", "source_name": "virtual reality", "target_name": "descriptive geometry", "weight": 1.0, "year": 2006}, {"source": "43", "target": "50", "source_name": "virtual reality", "target_name": "user interface", "weight": 4.0, "year": 2006}, {"source": "43", "target": "51", "source_name": "virtual reality", "target_name": "global illumination", "weight": 1.0, "year": 2006}, {"source": "43", "target": "52", "source_name": "virtual reality", "target_name": "graphics cards", "weight": 1.0, "year": 2006}, {"source": "43", "target": "60", "source_name": "virtual reality", "target_name": "floating point", "weight": 2.0, "year": 2006}, {"source": "43", "target": "61", "source_name": "virtual reality", "target_name": "hong kong", "weight": 1.0, "year": 2006}, {"source": "43", "target": "64", "source_name": "virtual reality", "target_name": "scientific visualization", "weight": 1.0, "year": 2006}, {"source": "43", "target": "67", "source_name": "virtual reality", "target_name": "image processing", "weight": 2.0, "year": 2006}, {"source": "43", "target": "71", "source_name": "virtual reality", "target_name": "embedded systems", "weight": 2.0, "year": 2006}, {"source": "43", "target": "78", "source_name": "virtual reality", "target_name": "ray tracing", "weight": 1.0, "year": 2006}, {"source": "44", "target": "50", "source_name": "source code", "target_name": "user interface", "weight": 1.0, "year": 2006}, {"source": "44", "target": "65", "source_name": "source code", "target_name": "programming language", "weight": 1.0, "year": 2006}, {"source": "44", "target": "79", "source_name": "source code", "target_name": "geometric modeling", "weight": 1.0, "year": 2006}, {"source": "44", "target": "86", "source_name": "source code", "target_name": "graphical user interface", "weight": 2.0, "year": 2006}, {"source": "45", "target": "67", "source_name": "international conference", "target_name": "image processing", "weight": 1.0, "year": 2006}, {"source": "45", "target": "70", "source_name": "international conference", "target_name": "solid modeling", "weight": 1.0, "year": 2006}, {"source": "47", "target": "64", "source_name": "descriptive geometry", "target_name": "scientific visualization", "weight": 1.0, "year": 2006}, {"source": "47", "target": "67", "source_name": "descriptive geometry", "target_name": "image processing", "weight": 1.0, "year": 2006}, {"source": "50", "target": "60", "source_name": "user interface", "target_name": "floating point", "weight": 2.0, "year": 2006}, {"source": "50", "target": "62", "source_name": "user interface", "target_name": "pattern recognition", "weight": 1.0, "year": 2006}, {"source": "50", "target": "71", "source_name": "user interface", "target_name": "embedded systems", "weight": 2.0, "year": 2006}, {"source": "50", "target": "73", "source_name": "user interface", "target_name": "engineering drawing", "weight": 1.0, "year": 2006}, {"source": "50", "target": "77", "source_name": "user interface", "target_name": "scalable vector graphics", "weight": 1.0, "year": 2006}, {"source": "50", "target": "82", "source_name": "user interface", "target_name": "data mining", "weight": 1.0, "year": 2006}, {"source": "50", "target": "86", "source_name": "user interface", "target_name": "graphical user interface", "weight": 16.0, "year": 2006}, {"source": "51", "target": "52", "source_name": "global illumination", "target_name": "graphics cards", "weight": 1.0, "year": 2006}, {"source": "51", "target": "78", "source_name": "global illumination", "target_name": "ray tracing", "weight": 2.0, "year": 2006}, {"source": "51", "target": "79", "source_name": "global illumination", "target_name": "geometric modeling", "weight": 1.0, "year": 2006}, {"source": "52", "target": "60", "source_name": "graphics cards", "target_name": "floating point", "weight": 2.0, "year": 2006}, {"source": "52", "target": "78", "source_name": "graphics cards", "target_name": "ray tracing", "weight": 1.0, "year": 2006}, {"source": "52", "target": "83", "source_name": "graphics cards", "target_name": "graphics processing unit", "weight": 3.0, "year": 2006}, {"source": "52", "target": "84", "source_name": "graphics cards", "target_name": "frame rate", "weight": 2.0, "year": 2006}, {"source": "60", "target": "71", "source_name": "floating point", "target_name": "embedded systems", "weight": 2.0, "year": 2006}, {"source": "62", "target": "73", "source_name": "pattern recognition", "target_name": "engineering drawing", "weight": 1.0, "year": 2006}, {"source": "63", "target": "71", "source_name": "signal processing", "target_name": "embedded systems", "weight": 1.0, "year": 2006}, {"source": "64", "target": "67", "source_name": "scientific visualization", "target_name": "image processing", "weight": 1.0, "year": 2006}, {"source": "65", "target": "67", "source_name": "programming language", "target_name": "image processing", "weight": 1.0, "year": 2006}, {"source": "65", "target": "86", "source_name": "programming language", "target_name": "graphical user interface", "weight": 1.0, "year": 2006}, {"source": "67", "target": "70", "source_name": "image processing", "target_name": "solid modeling", "weight": 1.0, "year": 2006}, {"source": "67", "target": "83", "source_name": "image processing", "target_name": "graphics processing unit", "weight": 1.0, "year": 2006}, {"source": "78", "target": "79", "source_name": "ray tracing", "target_name": "geometric modeling", "weight": 1.0, "year": 2006}, {"source": "79", "target": "85", "source_name": "geometric modeling", "target_name": "artificial intelligence", "weight": 1.0, "year": 2006}, {"source": "80", "target": "85", "source_name": "virtual environments", "target_name": "artificial intelligence", "weight": 1.0, "year": 2006}, {"source": "82", "target": "86", "source_name": "data mining", "target_name": "graphical user interface", "weight": 1.0, "year": 2006}, {"source": "83", "target": "84", "source_name": "graphics processing unit", "target_name": "frame rate", "weight": 2.0, "year": 2006}, {"source": "85", "target": "86", "source_name": "artificial intelligence", "target_name": "graphical user interface", "weight": 1.0, "year": 2006}]}, {"2007": [{"source": "1", "target": "36", "source_name": "web page", "target_name": "data visualization", "weight": 1.0, "year": 2007}, {"source": "1", "target": "38", "source_name": "web page", "target_name": "vector graphics", "weight": 1.0, "year": 2007}, {"source": "1", "target": "77", "source_name": "web page", "target_name": "scalable vector graphics", "weight": 1.0, "year": 2007}, {"source": "1", "target": "82", "source_name": "web page", "target_name": "data mining", "weight": 1.0, "year": 2007}, {"source": "2", "target": "15", "source_name": "visual communication", "target_name": "problem solving", "weight": 1.0, "year": 2007}, {"source": "2", "target": "30", "source_name": "visual communication", "target_name": "graphic designer", "weight": 1.0, "year": 2007}, {"source": "2", "target": "50", "source_name": "visual communication", "target_name": "user interface", "weight": 1.0, "year": 2007}, {"source": "2", "target": "86", "source_name": "visual communication", "target_name": "graphical user interface", "weight": 1.0, "year": 2007}, {"source": "6", "target": "50", "source_name": "parallel computing", "target_name": "user interface", "weight": 1.0, "year": 2007}, {"source": "6", "target": "86", "source_name": "parallel computing", "target_name": "graphical user interface", "weight": 1.0, "year": 2007}, {"source": "7", "target": "21", "source_name": "data acquisition", "target_name": "graphical interface", "weight": 1.0, "year": 2007}, {"source": "7", "target": "50", "source_name": "data acquisition", "target_name": "user interface", "weight": 1.0, "year": 2007}, {"source": "7", "target": "63", "source_name": "data acquisition", "target_name": "signal processing", "weight": 1.0, "year": 2007}, {"source": "7", "target": "67", "source_name": "data acquisition", "target_name": "image processing", "weight": 1.0, "year": 2007}, {"source": "8", "target": "50", "source_name": "future directions", "target_name": "user interface", "weight": 1.0, "year": 2007}, {"source": "8", "target": "86", "source_name": "future directions", "target_name": "graphical user interface", "weight": 1.0, "year": 2007}, {"source": "9", "target": "21", "source_name": "object oriented", "target_name": "graphical interface", "weight": 1.0, "year": 2007}, {"source": "9", "target": "79", "source_name": "object oriented", "target_name": "geometric modeling", "weight": 1.0, "year": 2007}, {"source": "9", "target": "85", "source_name": "object oriented", "target_name": "artificial intelligence", "weight": 1.0, "year": 2007}, {"source": "10", "target": "69", "source_name": "mobile phone", "target_name": "mobile devices", "weight": 3.0, "year": 2007}, {"source": "11", "target": "33", "source_name": "software engineering", "target_name": "parallel processing", "weight": 1.0, "year": 2007}, {"source": "11", "target": "36", "source_name": "software engineering", "target_name": "data visualization", "weight": 1.0, "year": 2007}, {"source": "11", "target": "43", "source_name": "software engineering", "target_name": "virtual reality", "weight": 1.0, "year": 2007}, {"source": "11", "target": "50", "source_name": "software engineering", "target_name": "user interface", "weight": 1.0, "year": 2007}, {"source": "11", "target": "51", "source_name": "software engineering", "target_name": "global illumination", "weight": 1.0, "year": 2007}, {"source": "11", "target": "52", "source_name": "software engineering", "target_name": "graphics cards", "weight": 1.0, "year": 2007}, {"source": "11", "target": "78", "source_name": "software engineering", "target_name": "ray tracing", "weight": 1.0, "year": 2007}, {"source": "12", "target": "33", "source_name": "graphics processor", "target_name": "parallel processing", "weight": 1.0, "year": 2007}, {"source": "12", "target": "64", "source_name": "graphics processor", "target_name": "scientific visualization", "weight": 1.0, "year": 2007}, {"source": "12", "target": "65", "source_name": "graphics processor", "target_name": "programming language", "weight": 1.0, "year": 2007}, {"source": "13", "target": "43", "source_name": "augmented reality", "target_name": "virtual reality", "weight": 1.0, "year": 2007}, {"source": "13", "target": "67", "source_name": "augmented reality", "target_name": "image processing", "weight": 1.0, "year": 2007}, {"source": "14", "target": "43", "source_name": "human perception", "target_name": "virtual reality", "weight": 2.0, "year": 2007}, {"source": "14", "target": "50", "source_name": "human perception", "target_name": "user interface", "weight": 2.0, "year": 2007}, {"source": "14", "target": "60", "source_name": "human perception", "target_name": "floating point", "weight": 2.0, "year": 2007}, {"source": "14", "target": "71", "source_name": "human perception", "target_name": "embedded systems", "weight": 2.0, "year": 2007}, {"source": "14", "target": "80", "source_name": "human perception", "target_name": "virtual environments", "weight": 1.0, "year": 2007}, {"source": "16", "target": "53", "source_name": "high school", "target_name": "graphic novels", "weight": 1.0, "year": 2007}, {"source": "16", "target": "70", "source_name": "high school", "target_name": "solid modeling", "weight": 1.0, "year": 2007}, {"source": "16", "target": "74", "source_name": "high school", "target_name": "united states", "weight": 1.0, "year": 2007}, {"source": "17", "target": "85", "source_name": "probabilistic graphical models", "target_name": "artificial intelligence", "weight": 1.0, "year": 2007}, {"source": "20", "target": "47", "source_name": "higher education", "target_name": "descriptive geometry", "weight": 1.0, "year": 2007}, {"source": "21", "target": "23", "source_name": "graphical interface", "target_name": "modeling language", "weight": 1.0, "year": 2007}, {"source": "21", "target": "44", "source_name": "graphical interface", "target_name": "source code", "weight": 1.0, "year": 2007}, {"source": "21", "target": "50", "source_name": "graphical interface", "target_name": "user interface", "weight": 1.0, "year": 2007}, {"source": "21", "target": "65", "source_name": "graphical interface", "target_name": "programming language", "weight": 1.0, "year": 2007}, {"source": "21", "target": "86", "source_name": "graphical interface", "target_name": "graphical user interface", "weight": 4.0, "year": 2007}, {"source": "23", "target": "43", "source_name": "modeling language", "target_name": "virtual reality", "weight": 1.0, "year": 2007}, {"source": "23", "target": "50", "source_name": "modeling language", "target_name": "user interface", "weight": 1.0, "year": 2007}, {"source": "30", "target": "38", "source_name": "graphic designer", "target_name": "vector graphics", "weight": 1.0, "year": 2007}, {"source": "30", "target": "61", "source_name": "graphic designer", "target_name": "hong kong", "weight": 1.0, "year": 2007}, {"source": "30", "target": "86", "source_name": "graphic designer", "target_name": "graphical user interface", "weight": 1.0, "year": 2007}, {"source": "31", "target": "37", "source_name": "magnetic field", "target_name": "eddy current", "weight": 1.0, "year": 2007}, {"source": "31", "target": "50", "source_name": "magnetic field", "target_name": "user interface", "weight": 1.0, "year": 2007}, {"source": "33", "target": "36", "source_name": "parallel processing", "target_name": "data visualization", "weight": 1.0, "year": 2007}, {"source": "33", "target": "43", "source_name": "parallel processing", "target_name": "virtual reality", "weight": 2.0, "year": 2007}, {"source": "33", "target": "51", "source_name": "parallel processing", "target_name": "global illumination", "weight": 1.0, "year": 2007}, {"source": "33", "target": "52", "source_name": "parallel processing", "target_name": "graphics cards", "weight": 1.0, "year": 2007}, {"source": "33", "target": "78", "source_name": "parallel processing", "target_name": "ray tracing", "weight": 1.0, "year": 2007}, {"source": "33", "target": "86", "source_name": "parallel processing", "target_name": "graphical user interface", "weight": 1.0, "year": 2007}, {"source": "36", "target": "82", "source_name": "data visualization", "target_name": "data mining", "weight": 1.0, "year": 2007}, {"source": "37", "target": "50", "source_name": "eddy current", "target_name": "user interface", "weight": 1.0, "year": 2007}, {"source": "38", "target": "50", "source_name": "vector graphics", "target_name": "user interface", "weight": 1.0, "year": 2007}, {"source": "38", "target": "77", "source_name": "vector graphics", "target_name": "scalable vector graphics", "weight": 12.0, "year": 2007}, {"source": "38", "target": "86", "source_name": "vector graphics", "target_name": "graphical user interface", "weight": 1.0, "year": 2007}, {"source": "39", "target": "50", "source_name": "display device", "target_name": "user interface", "weight": 2.0, "year": 2007}, {"source": "43", "target": "47", "source_name": "virtual reality", "target_name": "descriptive geometry", "weight": 1.0, "year": 2007}, {"source": "43", "target": "50", "source_name": "virtual reality", "target_name": "user interface", "weight": 4.0, "year": 2007}, {"source": "43", "target": "51", "source_name": "virtual reality", "target_name": "global illumination", "weight": 1.0, "year": 2007}, {"source": "43", "target": "52", "source_name": "virtual reality", "target_name": "graphics cards", "weight": 1.0, "year": 2007}, {"source": "43", "target": "60", "source_name": "virtual reality", "target_name": "floating point", "weight": 2.0, "year": 2007}, {"source": "43", "target": "61", "source_name": "virtual reality", "target_name": "hong kong", "weight": 1.0, "year": 2007}, {"source": "43", "target": "64", "source_name": "virtual reality", "target_name": "scientific visualization", "weight": 1.0, "year": 2007}, {"source": "43", "target": "67", "source_name": "virtual reality", "target_name": "image processing", "weight": 2.0, "year": 2007}, {"source": "43", "target": "71", "source_name": "virtual reality", "target_name": "embedded systems", "weight": 2.0, "year": 2007}, {"source": "43", "target": "78", "source_name": "virtual reality", "target_name": "ray tracing", "weight": 1.0, "year": 2007}, {"source": "44", "target": "50", "source_name": "source code", "target_name": "user interface", "weight": 1.0, "year": 2007}, {"source": "44", "target": "65", "source_name": "source code", "target_name": "programming language", "weight": 1.0, "year": 2007}, {"source": "44", "target": "79", "source_name": "source code", "target_name": "geometric modeling", "weight": 1.0, "year": 2007}, {"source": "44", "target": "86", "source_name": "source code", "target_name": "graphical user interface", "weight": 2.0, "year": 2007}, {"source": "45", "target": "67", "source_name": "international conference", "target_name": "image processing", "weight": 1.0, "year": 2007}, {"source": "45", "target": "70", "source_name": "international conference", "target_name": "solid modeling", "weight": 1.0, "year": 2007}, {"source": "47", "target": "64", "source_name": "descriptive geometry", "target_name": "scientific visualization", "weight": 1.0, "year": 2007}, {"source": "47", "target": "67", "source_name": "descriptive geometry", "target_name": "image processing", "weight": 1.0, "year": 2007}, {"source": "50", "target": "60", "source_name": "user interface", "target_name": "floating point", "weight": 2.0, "year": 2007}, {"source": "50", "target": "62", "source_name": "user interface", "target_name": "pattern recognition", "weight": 1.0, "year": 2007}, {"source": "50", "target": "71", "source_name": "user interface", "target_name": "embedded systems", "weight": 2.0, "year": 2007}, {"source": "50", "target": "73", "source_name": "user interface", "target_name": "engineering drawing", "weight": 1.0, "year": 2007}, {"source": "50", "target": "77", "source_name": "user interface", "target_name": "scalable vector graphics", "weight": 1.0, "year": 2007}, {"source": "50", "target": "82", "source_name": "user interface", "target_name": "data mining", "weight": 1.0, "year": 2007}, {"source": "50", "target": "86", "source_name": "user interface", "target_name": "graphical user interface", "weight": 17.0, "year": 2007}, {"source": "51", "target": "52", "source_name": "global illumination", "target_name": "graphics cards", "weight": 1.0, "year": 2007}, {"source": "51", "target": "78", "source_name": "global illumination", "target_name": "ray tracing", "weight": 2.0, "year": 2007}, {"source": "51", "target": "79", "source_name": "global illumination", "target_name": "geometric modeling", "weight": 1.0, "year": 2007}, {"source": "52", "target": "60", "source_name": "graphics cards", "target_name": "floating point", "weight": 2.0, "year": 2007}, {"source": "52", "target": "78", "source_name": "graphics cards", "target_name": "ray tracing", "weight": 1.0, "year": 2007}, {"source": "52", "target": "83", "source_name": "graphics cards", "target_name": "graphics processing unit", "weight": 3.0, "year": 2007}, {"source": "52", "target": "84", "source_name": "graphics cards", "target_name": "frame rate", "weight": 3.0, "year": 2007}, {"source": "53", "target": "72", "source_name": "graphic novels", "target_name": "public libraries", "weight": 1.0, "year": 2007}, {"source": "60", "target": "71", "source_name": "floating point", "target_name": "embedded systems", "weight": 2.0, "year": 2007}, {"source": "62", "target": "73", "source_name": "pattern recognition", "target_name": "engineering drawing", "weight": 1.0, "year": 2007}, {"source": "63", "target": "71", "source_name": "signal processing", "target_name": "embedded systems", "weight": 1.0, "year": 2007}, {"source": "64", "target": "65", "source_name": "scientific visualization", "target_name": "programming language", "weight": 1.0, "year": 2007}, {"source": "64", "target": "67", "source_name": "scientific visualization", "target_name": "image processing", "weight": 1.0, "year": 2007}, {"source": "65", "target": "67", "source_name": "programming language", "target_name": "image processing", "weight": 1.0, "year": 2007}, {"source": "65", "target": "86", "source_name": "programming language", "target_name": "graphical user interface", "weight": 1.0, "year": 2007}, {"source": "67", "target": "70", "source_name": "image processing", "target_name": "solid modeling", "weight": 1.0, "year": 2007}, {"source": "67", "target": "83", "source_name": "image processing", "target_name": "graphics processing unit", "weight": 1.0, "year": 2007}, {"source": "70", "target": "74", "source_name": "solid modeling", "target_name": "united states", "weight": 1.0, "year": 2007}, {"source": "78", "target": "79", "source_name": "ray tracing", "target_name": "geometric modeling", "weight": 1.0, "year": 2007}, {"source": "78", "target": "83", "source_name": "ray tracing", "target_name": "graphics processing unit", "weight": 1.0, "year": 2007}, {"source": "79", "target": "85", "source_name": "geometric modeling", "target_name": "artificial intelligence", "weight": 1.0, "year": 2007}, {"source": "80", "target": "85", "source_name": "virtual environments", "target_name": "artificial intelligence", "weight": 1.0, "year": 2007}, {"source": "82", "target": "86", "source_name": "data mining", "target_name": "graphical user interface", "weight": 1.0, "year": 2007}, {"source": "83", "target": "84", "source_name": "graphics processing unit", "target_name": "frame rate", "weight": 3.0, "year": 2007}, {"source": "85", "target": "86", "source_name": "artificial intelligence", "target_name": "graphical user interface", "weight": 1.0, "year": 2007}]}, {"2008": [{"source": "1", "target": "36", "source_name": "web page", "target_name": "data visualization", "weight": 1.0, "year": 2008}, {"source": "1", "target": "38", "source_name": "web page", "target_name": "vector graphics", "weight": 1.0, "year": 2008}, {"source": "1", "target": "77", "source_name": "web page", "target_name": "scalable vector graphics", "weight": 1.0, "year": 2008}, {"source": "1", "target": "82", "source_name": "web page", "target_name": "data mining", "weight": 1.0, "year": 2008}, {"source": "2", "target": "15", "source_name": "visual communication", "target_name": "problem solving", "weight": 1.0, "year": 2008}, {"source": "2", "target": "30", "source_name": "visual communication", "target_name": "graphic designer", "weight": 1.0, "year": 2008}, {"source": "2", "target": "50", "source_name": "visual communication", "target_name": "user interface", "weight": 1.0, "year": 2008}, {"source": "2", "target": "58", "source_name": "visual communication", "target_name": "chinese character", "weight": 1.0, "year": 2008}, {"source": "2", "target": "86", "source_name": "visual communication", "target_name": "graphical user interface", "weight": 1.0, "year": 2008}, {"source": "3", "target": "63", "source_name": "statistical methods", "target_name": "signal processing", "weight": 1.0, "year": 2008}, {"source": "3", "target": "67", "source_name": "statistical methods", "target_name": "image processing", "weight": 1.0, "year": 2008}, {"source": "6", "target": "12", "source_name": "parallel computing", "target_name": "graphics processor", "weight": 1.0, "year": 2008}, {"source": "6", "target": "50", "source_name": "parallel computing", "target_name": "user interface", "weight": 1.0, "year": 2008}, {"source": "6", "target": "52", "source_name": "parallel computing", "target_name": "graphics cards", "weight": 1.0, "year": 2008}, {"source": "6", "target": "60", "source_name": "parallel computing", "target_name": "floating point", "weight": 1.0, "year": 2008}, {"source": "6", "target": "83", "source_name": "parallel computing", "target_name": "graphics processing unit", "weight": 1.0, "year": 2008}, {"source": "6", "target": "86", "source_name": "parallel computing", "target_name": "graphical user interface", "weight": 1.0, "year": 2008}, {"source": "7", "target": "21", "source_name": "data acquisition", "target_name": "graphical interface", "weight": 1.0, "year": 2008}, {"source": "7", "target": "50", "source_name": "data acquisition", "target_name": "user interface", "weight": 1.0, "year": 2008}, {"source": "7", "target": "63", "source_name": "data acquisition", "target_name": "signal processing", "weight": 1.0, "year": 2008}, {"source": "7", "target": "67", "source_name": "data acquisition", "target_name": "image processing", "weight": 1.0, "year": 2008}, {"source": "8", "target": "50", "source_name": "future directions", "target_name": "user interface", "weight": 1.0, "year": 2008}, {"source": "8", "target": "86", "source_name": "future directions", "target_name": "graphical user interface", "weight": 1.0, "year": 2008}, {"source": "9", "target": "21", "source_name": "object oriented", "target_name": "graphical interface", "weight": 1.0, "year": 2008}, {"source": "9", "target": "79", "source_name": "object oriented", "target_name": "geometric modeling", "weight": 1.0, "year": 2008}, {"source": "9", "target": "85", "source_name": "object oriented", "target_name": "artificial intelligence", "weight": 1.0, "year": 2008}, {"source": "10", "target": "69", "source_name": "mobile phone", "target_name": "mobile devices", "weight": 3.0, "year": 2008}, {"source": "11", "target": "33", "source_name": "software engineering", "target_name": "parallel processing", "weight": 1.0, "year": 2008}, {"source": "11", "target": "36", "source_name": "software engineering", "target_name": "data visualization", "weight": 1.0, "year": 2008}, {"source": "11", "target": "43", "source_name": "software engineering", "target_name": "virtual reality", "weight": 1.0, "year": 2008}, {"source": "11", "target": "50", "source_name": "software engineering", "target_name": "user interface", "weight": 1.0, "year": 2008}, {"source": "11", "target": "51", "source_name": "software engineering", "target_name": "global illumination", "weight": 1.0, "year": 2008}, {"source": "11", "target": "52", "source_name": "software engineering", "target_name": "graphics cards", "weight": 1.0, "year": 2008}, {"source": "11", "target": "78", "source_name": "software engineering", "target_name": "ray tracing", "weight": 1.0, "year": 2008}, {"source": "12", "target": "33", "source_name": "graphics processor", "target_name": "parallel processing", "weight": 1.0, "year": 2008}, {"source": "12", "target": "43", "source_name": "graphics processor", "target_name": "virtual reality", "weight": 1.0, "year": 2008}, {"source": "12", "target": "52", "source_name": "graphics processor", "target_name": "graphics cards", "weight": 1.0, "year": 2008}, {"source": "12", "target": "60", "source_name": "graphics processor", "target_name": "floating point", "weight": 1.0, "year": 2008}, {"source": "12", "target": "64", "source_name": "graphics processor", "target_name": "scientific visualization", "weight": 1.0, "year": 2008}, {"source": "12", "target": "65", "source_name": "graphics processor", "target_name": "programming language", "weight": 2.0, "year": 2008}, {"source": "12", "target": "83", "source_name": "graphics processor", "target_name": "graphics processing unit", "weight": 1.0, "year": 2008}, {"source": "12", "target": "85", "source_name": "graphics processor", "target_name": "artificial intelligence", "weight": 1.0, "year": 2008}, {"source": "13", "target": "43", "source_name": "augmented reality", "target_name": "virtual reality", "weight": 1.0, "year": 2008}, {"source": "13", "target": "67", "source_name": "augmented reality", "target_name": "image processing", "weight": 1.0, "year": 2008}, {"source": "14", "target": "43", "source_name": "human perception", "target_name": "virtual reality", "weight": 2.0, "year": 2008}, {"source": "14", "target": "50", "source_name": "human perception", "target_name": "user interface", "weight": 2.0, "year": 2008}, {"source": "14", "target": "60", "source_name": "human perception", "target_name": "floating point", "weight": 2.0, "year": 2008}, {"source": "14", "target": "71", "source_name": "human perception", "target_name": "embedded systems", "weight": 2.0, "year": 2008}, {"source": "14", "target": "80", "source_name": "human perception", "target_name": "virtual environments", "weight": 1.0, "year": 2008}, {"source": "16", "target": "53", "source_name": "high school", "target_name": "graphic novels", "weight": 1.0, "year": 2008}, {"source": "16", "target": "70", "source_name": "high school", "target_name": "solid modeling", "weight": 1.0, "year": 2008}, {"source": "16", "target": "74", "source_name": "high school", "target_name": "united states", "weight": 1.0, "year": 2008}, {"source": "17", "target": "85", "source_name": "probabilistic graphical models", "target_name": "artificial intelligence", "weight": 1.0, "year": 2008}, {"source": "20", "target": "47", "source_name": "higher education", "target_name": "descriptive geometry", "weight": 1.0, "year": 2008}, {"source": "21", "target": "23", "source_name": "graphical interface", "target_name": "modeling language", "weight": 1.0, "year": 2008}, {"source": "21", "target": "44", "source_name": "graphical interface", "target_name": "source code", "weight": 1.0, "year": 2008}, {"source": "21", "target": "50", "source_name": "graphical interface", "target_name": "user interface", "weight": 2.0, "year": 2008}, {"source": "21", "target": "65", "source_name": "graphical interface", "target_name": "programming language", "weight": 1.0, "year": 2008}, {"source": "21", "target": "86", "source_name": "graphical interface", "target_name": "graphical user interface", "weight": 4.0, "year": 2008}, {"source": "23", "target": "43", "source_name": "modeling language", "target_name": "virtual reality", "weight": 1.0, "year": 2008}, {"source": "23", "target": "50", "source_name": "modeling language", "target_name": "user interface", "weight": 1.0, "year": 2008}, {"source": "30", "target": "38", "source_name": "graphic designer", "target_name": "vector graphics", "weight": 1.0, "year": 2008}, {"source": "30", "target": "61", "source_name": "graphic designer", "target_name": "hong kong", "weight": 1.0, "year": 2008}, {"source": "30", "target": "86", "source_name": "graphic designer", "target_name": "graphical user interface", "weight": 1.0, "year": 2008}, {"source": "31", "target": "37", "source_name": "magnetic field", "target_name": "eddy current", "weight": 1.0, "year": 2008}, {"source": "31", "target": "50", "source_name": "magnetic field", "target_name": "user interface", "weight": 1.0, "year": 2008}, {"source": "33", "target": "36", "source_name": "parallel processing", "target_name": "data visualization", "weight": 1.0, "year": 2008}, {"source": "33", "target": "43", "source_name": "parallel processing", "target_name": "virtual reality", "weight": 2.0, "year": 2008}, {"source": "33", "target": "51", "source_name": "parallel processing", "target_name": "global illumination", "weight": 1.0, "year": 2008}, {"source": "33", "target": "52", "source_name": "parallel processing", "target_name": "graphics cards", "weight": 1.0, "year": 2008}, {"source": "33", "target": "78", "source_name": "parallel processing", "target_name": "ray tracing", "weight": 1.0, "year": 2008}, {"source": "33", "target": "86", "source_name": "parallel processing", "target_name": "graphical user interface", "weight": 1.0, "year": 2008}, {"source": "36", "target": "50", "source_name": "data visualization", "target_name": "user interface", "weight": 1.0, "year": 2008}, {"source": "36", "target": "82", "source_name": "data visualization", "target_name": "data mining", "weight": 1.0, "year": 2008}, {"source": "37", "target": "50", "source_name": "eddy current", "target_name": "user interface", "weight": 1.0, "year": 2008}, {"source": "38", "target": "50", "source_name": "vector graphics", "target_name": "user interface", "weight": 1.0, "year": 2008}, {"source": "38", "target": "77", "source_name": "vector graphics", "target_name": "scalable vector graphics", "weight": 13.0, "year": 2008}, {"source": "38", "target": "86", "source_name": "vector graphics", "target_name": "graphical user interface", "weight": 1.0, "year": 2008}, {"source": "39", "target": "50", "source_name": "display device", "target_name": "user interface", "weight": 2.0, "year": 2008}, {"source": "43", "target": "47", "source_name": "virtual reality", "target_name": "descriptive geometry", "weight": 1.0, "year": 2008}, {"source": "43", "target": "50", "source_name": "virtual reality", "target_name": "user interface", "weight": 4.0, "year": 2008}, {"source": "43", "target": "51", "source_name": "virtual reality", "target_name": "global illumination", "weight": 1.0, "year": 2008}, {"source": "43", "target": "52", "source_name": "virtual reality", "target_name": "graphics cards", "weight": 1.0, "year": 2008}, {"source": "43", "target": "60", "source_name": "virtual reality", "target_name": "floating point", "weight": 2.0, "year": 2008}, {"source": "43", "target": "61", "source_name": "virtual reality", "target_name": "hong kong", "weight": 1.0, "year": 2008}, {"source": "43", "target": "64", "source_name": "virtual reality", "target_name": "scientific visualization", "weight": 2.0, "year": 2008}, {"source": "43", "target": "65", "source_name": "virtual reality", "target_name": "programming language", "weight": 1.0, "year": 2008}, {"source": "43", "target": "67", "source_name": "virtual reality", "target_name": "image processing", "weight": 2.0, "year": 2008}, {"source": "43", "target": "71", "source_name": "virtual reality", "target_name": "embedded systems", "weight": 2.0, "year": 2008}, {"source": "43", "target": "78", "source_name": "virtual reality", "target_name": "ray tracing", "weight": 1.0, "year": 2008}, {"source": "43", "target": "85", "source_name": "virtual reality", "target_name": "artificial intelligence", "weight": 1.0, "year": 2008}, {"source": "44", "target": "50", "source_name": "source code", "target_name": "user interface", "weight": 1.0, "year": 2008}, {"source": "44", "target": "65", "source_name": "source code", "target_name": "programming language", "weight": 1.0, "year": 2008}, {"source": "44", "target": "79", "source_name": "source code", "target_name": "geometric modeling", "weight": 1.0, "year": 2008}, {"source": "44", "target": "86", "source_name": "source code", "target_name": "graphical user interface", "weight": 2.0, "year": 2008}, {"source": "45", "target": "67", "source_name": "international conference", "target_name": "image processing", "weight": 2.0, "year": 2008}, {"source": "45", "target": "70", "source_name": "international conference", "target_name": "solid modeling", "weight": 2.0, "year": 2008}, {"source": "46", "target": "52", "source_name": "neural network", "target_name": "graphics cards", "weight": 1.0, "year": 2008}, {"source": "46", "target": "83", "source_name": "neural network", "target_name": "graphics processing unit", "weight": 1.0, "year": 2008}, {"source": "47", "target": "64", "source_name": "descriptive geometry", "target_name": "scientific visualization", "weight": 1.0, "year": 2008}, {"source": "47", "target": "67", "source_name": "descriptive geometry", "target_name": "image processing", "weight": 1.0, "year": 2008}, {"source": "50", "target": "60", "source_name": "user interface", "target_name": "floating point", "weight": 2.0, "year": 2008}, {"source": "50", "target": "62", "source_name": "user interface", "target_name": "pattern recognition", "weight": 1.0, "year": 2008}, {"source": "50", "target": "71", "source_name": "user interface", "target_name": "embedded systems", "weight": 2.0, "year": 2008}, {"source": "50", "target": "73", "source_name": "user interface", "target_name": "engineering drawing", "weight": 1.0, "year": 2008}, {"source": "50", "target": "77", "source_name": "user interface", "target_name": "scalable vector graphics", "weight": 1.0, "year": 2008}, {"source": "50", "target": "82", "source_name": "user interface", "target_name": "data mining", "weight": 1.0, "year": 2008}, {"source": "50", "target": "86", "source_name": "user interface", "target_name": "graphical user interface", "weight": 20.0, "year": 2008}, {"source": "51", "target": "52", "source_name": "global illumination", "target_name": "graphics cards", "weight": 1.0, "year": 2008}, {"source": "51", "target": "78", "source_name": "global illumination", "target_name": "ray tracing", "weight": 2.0, "year": 2008}, {"source": "51", "target": "79", "source_name": "global illumination", "target_name": "geometric modeling", "weight": 1.0, "year": 2008}, {"source": "52", "target": "60", "source_name": "graphics cards", "target_name": "floating point", "weight": 3.0, "year": 2008}, {"source": "52", "target": "78", "source_name": "graphics cards", "target_name": "ray tracing", "weight": 1.0, "year": 2008}, {"source": "52", "target": "83", "source_name": "graphics cards", "target_name": "graphics processing unit", "weight": 5.0, "year": 2008}, {"source": "52", "target": "84", "source_name": "graphics cards", "target_name": "frame rate", "weight": 3.0, "year": 2008}, {"source": "53", "target": "72", "source_name": "graphic novels", "target_name": "public libraries", "weight": 1.0, "year": 2008}, {"source": "60", "target": "71", "source_name": "floating point", "target_name": "embedded systems", "weight": 2.0, "year": 2008}, {"source": "62", "target": "73", "source_name": "pattern recognition", "target_name": "engineering drawing", "weight": 1.0, "year": 2008}, {"source": "63", "target": "67", "source_name": "signal processing", "target_name": "image processing", "weight": 1.0, "year": 2008}, {"source": "63", "target": "71", "source_name": "signal processing", "target_name": "embedded systems", "weight": 1.0, "year": 2008}, {"source": "64", "target": "65", "source_name": "scientific visualization", "target_name": "programming language", "weight": 1.0, "year": 2008}, {"source": "64", "target": "67", "source_name": "scientific visualization", "target_name": "image processing", "weight": 1.0, "year": 2008}, {"source": "65", "target": "67", "source_name": "programming language", "target_name": "image processing", "weight": 1.0, "year": 2008}, {"source": "65", "target": "85", "source_name": "programming language", "target_name": "artificial intelligence", "weight": 1.0, "year": 2008}, {"source": "65", "target": "86", "source_name": "programming language", "target_name": "graphical user interface", "weight": 1.0, "year": 2008}, {"source": "67", "target": "70", "source_name": "image processing", "target_name": "solid modeling", "weight": 2.0, "year": 2008}, {"source": "67", "target": "83", "source_name": "image processing", "target_name": "graphics processing unit", "weight": 2.0, "year": 2008}, {"source": "70", "target": "74", "source_name": "solid modeling", "target_name": "united states", "weight": 1.0, "year": 2008}, {"source": "78", "target": "79", "source_name": "ray tracing", "target_name": "geometric modeling", "weight": 1.0, "year": 2008}, {"source": "78", "target": "83", "source_name": "ray tracing", "target_name": "graphics processing unit", "weight": 1.0, "year": 2008}, {"source": "79", "target": "85", "source_name": "geometric modeling", "target_name": "artificial intelligence", "weight": 1.0, "year": 2008}, {"source": "80", "target": "85", "source_name": "virtual environments", "target_name": "artificial intelligence", "weight": 1.0, "year": 2008}, {"source": "82", "target": "86", "source_name": "data mining", "target_name": "graphical user interface", "weight": 1.0, "year": 2008}, {"source": "83", "target": "84", "source_name": "graphics processing unit", "target_name": "frame rate", "weight": 3.0, "year": 2008}, {"source": "85", "target": "86", "source_name": "artificial intelligence", "target_name": "graphical user interface", "weight": 1.0, "year": 2008}]}, {"2009": [{"source": "1", "target": "36", "source_name": "web page", "target_name": "data visualization", "weight": 1.0, "year": 2009}, {"source": "1", "target": "38", "source_name": "web page", "target_name": "vector graphics", "weight": 1.0, "year": 2009}, {"source": "1", "target": "77", "source_name": "web page", "target_name": "scalable vector graphics", "weight": 1.0, "year": 2009}, {"source": "1", "target": "82", "source_name": "web page", "target_name": "data mining", "weight": 1.0, "year": 2009}, {"source": "2", "target": "10", "source_name": "visual communication", "target_name": "mobile phone", "weight": 1.0, "year": 2009}, {"source": "2", "target": "15", "source_name": "visual communication", "target_name": "problem solving", "weight": 1.0, "year": 2009}, {"source": "2", "target": "30", "source_name": "visual communication", "target_name": "graphic designer", "weight": 1.0, "year": 2009}, {"source": "2", "target": "39", "source_name": "visual communication", "target_name": "display device", "weight": 1.0, "year": 2009}, {"source": "2", "target": "50", "source_name": "visual communication", "target_name": "user interface", "weight": 2.0, "year": 2009}, {"source": "2", "target": "58", "source_name": "visual communication", "target_name": "chinese character", "weight": 1.0, "year": 2009}, {"source": "2", "target": "86", "source_name": "visual communication", "target_name": "graphical user interface", "weight": 1.0, "year": 2009}, {"source": "3", "target": "63", "source_name": "statistical methods", "target_name": "signal processing", "weight": 1.0, "year": 2009}, {"source": "3", "target": "67", "source_name": "statistical methods", "target_name": "image processing", "weight": 1.0, "year": 2009}, {"source": "6", "target": "12", "source_name": "parallel computing", "target_name": "graphics processor", "weight": 2.0, "year": 2009}, {"source": "6", "target": "50", "source_name": "parallel computing", "target_name": "user interface", "weight": 1.0, "year": 2009}, {"source": "6", "target": "52", "source_name": "parallel computing", "target_name": "graphics cards", "weight": 1.0, "year": 2009}, {"source": "6", "target": "60", "source_name": "parallel computing", "target_name": "floating point", "weight": 1.0, "year": 2009}, {"source": "6", "target": "83", "source_name": "parallel computing", "target_name": "graphics processing unit", "weight": 1.0, "year": 2009}, {"source": "6", "target": "86", "source_name": "parallel computing", "target_name": "graphical user interface", "weight": 1.0, "year": 2009}, {"source": "7", "target": "21", "source_name": "data acquisition", "target_name": "graphical interface", "weight": 1.0, "year": 2009}, {"source": "7", "target": "50", "source_name": "data acquisition", "target_name": "user interface", "weight": 1.0, "year": 2009}, {"source": "7", "target": "63", "source_name": "data acquisition", "target_name": "signal processing", "weight": 1.0, "year": 2009}, {"source": "7", "target": "67", "source_name": "data acquisition", "target_name": "image processing", "weight": 1.0, "year": 2009}, {"source": "8", "target": "50", "source_name": "future directions", "target_name": "user interface", "weight": 1.0, "year": 2009}, {"source": "8", "target": "86", "source_name": "future directions", "target_name": "graphical user interface", "weight": 1.0, "year": 2009}, {"source": "9", "target": "21", "source_name": "object oriented", "target_name": "graphical interface", "weight": 1.0, "year": 2009}, {"source": "9", "target": "79", "source_name": "object oriented", "target_name": "geometric modeling", "weight": 1.0, "year": 2009}, {"source": "9", "target": "85", "source_name": "object oriented", "target_name": "artificial intelligence", "weight": 1.0, "year": 2009}, {"source": "10", "target": "39", "source_name": "mobile phone", "target_name": "display device", "weight": 1.0, "year": 2009}, {"source": "10", "target": "50", "source_name": "mobile phone", "target_name": "user interface", "weight": 1.0, "year": 2009}, {"source": "10", "target": "69", "source_name": "mobile phone", "target_name": "mobile devices", "weight": 3.0, "year": 2009}, {"source": "11", "target": "33", "source_name": "software engineering", "target_name": "parallel processing", "weight": 1.0, "year": 2009}, {"source": "11", "target": "36", "source_name": "software engineering", "target_name": "data visualization", "weight": 1.0, "year": 2009}, {"source": "11", "target": "43", "source_name": "software engineering", "target_name": "virtual reality", "weight": 1.0, "year": 2009}, {"source": "11", "target": "50", "source_name": "software engineering", "target_name": "user interface", "weight": 1.0, "year": 2009}, {"source": "11", "target": "51", "source_name": "software engineering", "target_name": "global illumination", "weight": 1.0, "year": 2009}, {"source": "11", "target": "52", "source_name": "software engineering", "target_name": "graphics cards", "weight": 1.0, "year": 2009}, {"source": "11", "target": "78", "source_name": "software engineering", "target_name": "ray tracing", "weight": 1.0, "year": 2009}, {"source": "12", "target": "33", "source_name": "graphics processor", "target_name": "parallel processing", "weight": 1.0, "year": 2009}, {"source": "12", "target": "43", "source_name": "graphics processor", "target_name": "virtual reality", "weight": 1.0, "year": 2009}, {"source": "12", "target": "52", "source_name": "graphics processor", "target_name": "graphics cards", "weight": 1.0, "year": 2009}, {"source": "12", "target": "60", "source_name": "graphics processor", "target_name": "floating point", "weight": 1.0, "year": 2009}, {"source": "12", "target": "64", "source_name": "graphics processor", "target_name": "scientific visualization", "weight": 1.0, "year": 2009}, {"source": "12", "target": "65", "source_name": "graphics processor", "target_name": "programming language", "weight": 2.0, "year": 2009}, {"source": "12", "target": "67", "source_name": "graphics processor", "target_name": "image processing", "weight": 1.0, "year": 2009}, {"source": "12", "target": "78", "source_name": "graphics processor", "target_name": "ray tracing", "weight": 1.0, "year": 2009}, {"source": "12", "target": "83", "source_name": "graphics processor", "target_name": "graphics processing unit", "weight": 1.0, "year": 2009}, {"source": "12", "target": "85", "source_name": "graphics processor", "target_name": "artificial intelligence", "weight": 1.0, "year": 2009}, {"source": "13", "target": "43", "source_name": "augmented reality", "target_name": "virtual reality", "weight": 1.0, "year": 2009}, {"source": "13", "target": "67", "source_name": "augmented reality", "target_name": "image processing", "weight": 1.0, "year": 2009}, {"source": "14", "target": "43", "source_name": "human perception", "target_name": "virtual reality", "weight": 2.0, "year": 2009}, {"source": "14", "target": "50", "source_name": "human perception", "target_name": "user interface", "weight": 2.0, "year": 2009}, {"source": "14", "target": "60", "source_name": "human perception", "target_name": "floating point", "weight": 2.0, "year": 2009}, {"source": "14", "target": "71", "source_name": "human perception", "target_name": "embedded systems", "weight": 2.0, "year": 2009}, {"source": "14", "target": "80", "source_name": "human perception", "target_name": "virtual environments", "weight": 1.0, "year": 2009}, {"source": "16", "target": "53", "source_name": "high school", "target_name": "graphic novels", "weight": 1.0, "year": 2009}, {"source": "16", "target": "70", "source_name": "high school", "target_name": "solid modeling", "weight": 1.0, "year": 2009}, {"source": "16", "target": "74", "source_name": "high school", "target_name": "united states", "weight": 1.0, "year": 2009}, {"source": "17", "target": "85", "source_name": "probabilistic graphical models", "target_name": "artificial intelligence", "weight": 1.0, "year": 2009}, {"source": "20", "target": "47", "source_name": "higher education", "target_name": "descriptive geometry", "weight": 1.0, "year": 2009}, {"source": "21", "target": "23", "source_name": "graphical interface", "target_name": "modeling language", "weight": 1.0, "year": 2009}, {"source": "21", "target": "44", "source_name": "graphical interface", "target_name": "source code", "weight": 1.0, "year": 2009}, {"source": "21", "target": "50", "source_name": "graphical interface", "target_name": "user interface", "weight": 2.0, "year": 2009}, {"source": "21", "target": "65", "source_name": "graphical interface", "target_name": "programming language", "weight": 1.0, "year": 2009}, {"source": "21", "target": "86", "source_name": "graphical interface", "target_name": "graphical user interface", "weight": 4.0, "year": 2009}, {"source": "23", "target": "43", "source_name": "modeling language", "target_name": "virtual reality", "weight": 1.0, "year": 2009}, {"source": "23", "target": "50", "source_name": "modeling language", "target_name": "user interface", "weight": 1.0, "year": 2009}, {"source": "30", "target": "38", "source_name": "graphic designer", "target_name": "vector graphics", "weight": 1.0, "year": 2009}, {"source": "30", "target": "61", "source_name": "graphic designer", "target_name": "hong kong", "weight": 1.0, "year": 2009}, {"source": "30", "target": "86", "source_name": "graphic designer", "target_name": "graphical user interface", "weight": 1.0, "year": 2009}, {"source": "31", "target": "37", "source_name": "magnetic field", "target_name": "eddy current", "weight": 1.0, "year": 2009}, {"source": "31", "target": "50", "source_name": "magnetic field", "target_name": "user interface", "weight": 1.0, "year": 2009}, {"source": "32", "target": "65", "source_name": "open source", "target_name": "programming language", "weight": 1.0, "year": 2009}, {"source": "33", "target": "36", "source_name": "parallel processing", "target_name": "data visualization", "weight": 1.0, "year": 2009}, {"source": "33", "target": "43", "source_name": "parallel processing", "target_name": "virtual reality", "weight": 2.0, "year": 2009}, {"source": "33", "target": "51", "source_name": "parallel processing", "target_name": "global illumination", "weight": 1.0, "year": 2009}, {"source": "33", "target": "52", "source_name": "parallel processing", "target_name": "graphics cards", "weight": 1.0, "year": 2009}, {"source": "33", "target": "78", "source_name": "parallel processing", "target_name": "ray tracing", "weight": 1.0, "year": 2009}, {"source": "33", "target": "86", "source_name": "parallel processing", "target_name": "graphical user interface", "weight": 1.0, "year": 2009}, {"source": "36", "target": "50", "source_name": "data visualization", "target_name": "user interface", "weight": 1.0, "year": 2009}, {"source": "36", "target": "69", "source_name": "data visualization", "target_name": "mobile devices", "weight": 1.0, "year": 2009}, {"source": "36", "target": "82", "source_name": "data visualization", "target_name": "data mining", "weight": 1.0, "year": 2009}, {"source": "37", "target": "50", "source_name": "eddy current", "target_name": "user interface", "weight": 1.0, "year": 2009}, {"source": "38", "target": "50", "source_name": "vector graphics", "target_name": "user interface", "weight": 1.0, "year": 2009}, {"source": "38", "target": "77", "source_name": "vector graphics", "target_name": "scalable vector graphics", "weight": 13.0, "year": 2009}, {"source": "38", "target": "86", "source_name": "vector graphics", "target_name": "graphical user interface", "weight": 1.0, "year": 2009}, {"source": "39", "target": "40", "source_name": "display device", "target_name": "frame buffer", "weight": 1.0, "year": 2009}, {"source": "39", "target": "50", "source_name": "display device", "target_name": "user interface", "weight": 4.0, "year": 2009}, {"source": "39", "target": "86", "source_name": "display device", "target_name": "graphical user interface", "weight": 1.0, "year": 2009}, {"source": "43", "target": "47", "source_name": "virtual reality", "target_name": "descriptive geometry", "weight": 1.0, "year": 2009}, {"source": "43", "target": "50", "source_name": "virtual reality", "target_name": "user interface", "weight": 4.0, "year": 2009}, {"source": "43", "target": "51", "source_name": "virtual reality", "target_name": "global illumination", "weight": 1.0, "year": 2009}, {"source": "43", "target": "52", "source_name": "virtual reality", "target_name": "graphics cards", "weight": 1.0, "year": 2009}, {"source": "43", "target": "60", "source_name": "virtual reality", "target_name": "floating point", "weight": 2.0, "year": 2009}, {"source": "43", "target": "61", "source_name": "virtual reality", "target_name": "hong kong", "weight": 1.0, "year": 2009}, {"source": "43", "target": "64", "source_name": "virtual reality", "target_name": "scientific visualization", "weight": 3.0, "year": 2009}, {"source": "43", "target": "65", "source_name": "virtual reality", "target_name": "programming language", "weight": 1.0, "year": 2009}, {"source": "43", "target": "67", "source_name": "virtual reality", "target_name": "image processing", "weight": 2.0, "year": 2009}, {"source": "43", "target": "71", "source_name": "virtual reality", "target_name": "embedded systems", "weight": 2.0, "year": 2009}, {"source": "43", "target": "78", "source_name": "virtual reality", "target_name": "ray tracing", "weight": 1.0, "year": 2009}, {"source": "43", "target": "83", "source_name": "virtual reality", "target_name": "graphics processing unit", "weight": 2.0, "year": 2009}, {"source": "43", "target": "85", "source_name": "virtual reality", "target_name": "artificial intelligence", "weight": 1.0, "year": 2009}, {"source": "44", "target": "50", "source_name": "source code", "target_name": "user interface", "weight": 1.0, "year": 2009}, {"source": "44", "target": "65", "source_name": "source code", "target_name": "programming language", "weight": 1.0, "year": 2009}, {"source": "44", "target": "79", "source_name": "source code", "target_name": "geometric modeling", "weight": 1.0, "year": 2009}, {"source": "44", "target": "86", "source_name": "source code", "target_name": "graphical user interface", "weight": 2.0, "year": 2009}, {"source": "45", "target": "67", "source_name": "international conference", "target_name": "image processing", "weight": 2.0, "year": 2009}, {"source": "45", "target": "70", "source_name": "international conference", "target_name": "solid modeling", "weight": 2.0, "year": 2009}, {"source": "46", "target": "52", "source_name": "neural network", "target_name": "graphics cards", "weight": 1.0, "year": 2009}, {"source": "46", "target": "83", "source_name": "neural network", "target_name": "graphics processing unit", "weight": 1.0, "year": 2009}, {"source": "47", "target": "64", "source_name": "descriptive geometry", "target_name": "scientific visualization", "weight": 1.0, "year": 2009}, {"source": "47", "target": "67", "source_name": "descriptive geometry", "target_name": "image processing", "weight": 1.0, "year": 2009}, {"source": "50", "target": "60", "source_name": "user interface", "target_name": "floating point", "weight": 2.0, "year": 2009}, {"source": "50", "target": "62", "source_name": "user interface", "target_name": "pattern recognition", "weight": 1.0, "year": 2009}, {"source": "50", "target": "71", "source_name": "user interface", "target_name": "embedded systems", "weight": 2.0, "year": 2009}, {"source": "50", "target": "73", "source_name": "user interface", "target_name": "engineering drawing", "weight": 1.0, "year": 2009}, {"source": "50", "target": "77", "source_name": "user interface", "target_name": "scalable vector graphics", "weight": 1.0, "year": 2009}, {"source": "50", "target": "82", "source_name": "user interface", "target_name": "data mining", "weight": 1.0, "year": 2009}, {"source": "50", "target": "86", "source_name": "user interface", "target_name": "graphical user interface", "weight": 22.0, "year": 2009}, {"source": "51", "target": "52", "source_name": "global illumination", "target_name": "graphics cards", "weight": 1.0, "year": 2009}, {"source": "51", "target": "78", "source_name": "global illumination", "target_name": "ray tracing", "weight": 2.0, "year": 2009}, {"source": "51", "target": "79", "source_name": "global illumination", "target_name": "geometric modeling", "weight": 1.0, "year": 2009}, {"source": "52", "target": "60", "source_name": "graphics cards", "target_name": "floating point", "weight": 3.0, "year": 2009}, {"source": "52", "target": "78", "source_name": "graphics cards", "target_name": "ray tracing", "weight": 1.0, "year": 2009}, {"source": "52", "target": "83", "source_name": "graphics cards", "target_name": "graphics processing unit", "weight": 5.0, "year": 2009}, {"source": "52", "target": "84", "source_name": "graphics cards", "target_name": "frame rate", "weight": 3.0, "year": 2009}, {"source": "53", "target": "72", "source_name": "graphic novels", "target_name": "public libraries", "weight": 1.0, "year": 2009}, {"source": "60", "target": "71", "source_name": "floating point", "target_name": "embedded systems", "weight": 2.0, "year": 2009}, {"source": "62", "target": "73", "source_name": "pattern recognition", "target_name": "engineering drawing", "weight": 1.0, "year": 2009}, {"source": "63", "target": "67", "source_name": "signal processing", "target_name": "image processing", "weight": 1.0, "year": 2009}, {"source": "63", "target": "71", "source_name": "signal processing", "target_name": "embedded systems", "weight": 1.0, "year": 2009}, {"source": "64", "target": "65", "source_name": "scientific visualization", "target_name": "programming language", "weight": 1.0, "year": 2009}, {"source": "64", "target": "67", "source_name": "scientific visualization", "target_name": "image processing", "weight": 1.0, "year": 2009}, {"source": "65", "target": "67", "source_name": "programming language", "target_name": "image processing", "weight": 1.0, "year": 2009}, {"source": "65", "target": "78", "source_name": "programming language", "target_name": "ray tracing", "weight": 1.0, "year": 2009}, {"source": "65", "target": "79", "source_name": "programming language", "target_name": "geometric modeling", "weight": 1.0, "year": 2009}, {"source": "65", "target": "85", "source_name": "programming language", "target_name": "artificial intelligence", "weight": 1.0, "year": 2009}, {"source": "65", "target": "86", "source_name": "programming language", "target_name": "graphical user interface", "weight": 1.0, "year": 2009}, {"source": "67", "target": "70", "source_name": "image processing", "target_name": "solid modeling", "weight": 2.0, "year": 2009}, {"source": "67", "target": "78", "source_name": "image processing", "target_name": "ray tracing", "weight": 1.0, "year": 2009}, {"source": "67", "target": "83", "source_name": "image processing", "target_name": "graphics processing unit", "weight": 2.0, "year": 2009}, {"source": "70", "target": "74", "source_name": "solid modeling", "target_name": "united states", "weight": 1.0, "year": 2009}, {"source": "78", "target": "79", "source_name": "ray tracing", "target_name": "geometric modeling", "weight": 2.0, "year": 2009}, {"source": "78", "target": "83", "source_name": "ray tracing", "target_name": "graphics processing unit", "weight": 1.0, "year": 2009}, {"source": "79", "target": "85", "source_name": "geometric modeling", "target_name": "artificial intelligence", "weight": 1.0, "year": 2009}, {"source": "80", "target": "83", "source_name": "virtual environments", "target_name": "graphics processing unit", "weight": 1.0, "year": 2009}, {"source": "80", "target": "85", "source_name": "virtual environments", "target_name": "artificial intelligence", "weight": 1.0, "year": 2009}, {"source": "82", "target": "86", "source_name": "data mining", "target_name": "graphical user interface", "weight": 1.0, "year": 2009}, {"source": "83", "target": "84", "source_name": "graphics processing unit", "target_name": "frame rate", "weight": 3.0, "year": 2009}, {"source": "85", "target": "86", "source_name": "artificial intelligence", "target_name": "graphical user interface", "weight": 1.0, "year": 2009}]}, {"2010": [{"source": "1", "target": "36", "source_name": "web page", "target_name": "data visualization", "weight": 1.0, "year": 2010}, {"source": "1", "target": "38", "source_name": "web page", "target_name": "vector graphics", "weight": 1.0, "year": 2010}, {"source": "1", "target": "77", "source_name": "web page", "target_name": "scalable vector graphics", "weight": 1.0, "year": 2010}, {"source": "1", "target": "82", "source_name": "web page", "target_name": "data mining", "weight": 1.0, "year": 2010}, {"source": "2", "target": "10", "source_name": "visual communication", "target_name": "mobile phone", "weight": 1.0, "year": 2010}, {"source": "2", "target": "15", "source_name": "visual communication", "target_name": "problem solving", "weight": 1.0, "year": 2010}, {"source": "2", "target": "30", "source_name": "visual communication", "target_name": "graphic designer", "weight": 1.0, "year": 2010}, {"source": "2", "target": "39", "source_name": "visual communication", "target_name": "display device", "weight": 1.0, "year": 2010}, {"source": "2", "target": "50", "source_name": "visual communication", "target_name": "user interface", "weight": 2.0, "year": 2010}, {"source": "2", "target": "58", "source_name": "visual communication", "target_name": "chinese character", "weight": 1.0, "year": 2010}, {"source": "2", "target": "86", "source_name": "visual communication", "target_name": "graphical user interface", "weight": 1.0, "year": 2010}, {"source": "3", "target": "63", "source_name": "statistical methods", "target_name": "signal processing", "weight": 1.0, "year": 2010}, {"source": "3", "target": "67", "source_name": "statistical methods", "target_name": "image processing", "weight": 1.0, "year": 2010}, {"source": "6", "target": "12", "source_name": "parallel computing", "target_name": "graphics processor", "weight": 2.0, "year": 2010}, {"source": "6", "target": "33", "source_name": "parallel computing", "target_name": "parallel processing", "weight": 1.0, "year": 2010}, {"source": "6", "target": "50", "source_name": "parallel computing", "target_name": "user interface", "weight": 1.0, "year": 2010}, {"source": "6", "target": "52", "source_name": "parallel computing", "target_name": "graphics cards", "weight": 2.0, "year": 2010}, {"source": "6", "target": "60", "source_name": "parallel computing", "target_name": "floating point", "weight": 1.0, "year": 2010}, {"source": "6", "target": "83", "source_name": "parallel computing", "target_name": "graphics processing unit", "weight": 3.0, "year": 2010}, {"source": "6", "target": "86", "source_name": "parallel computing", "target_name": "graphical user interface", "weight": 1.0, "year": 2010}, {"source": "7", "target": "21", "source_name": "data acquisition", "target_name": "graphical interface", "weight": 1.0, "year": 2010}, {"source": "7", "target": "50", "source_name": "data acquisition", "target_name": "user interface", "weight": 1.0, "year": 2010}, {"source": "7", "target": "63", "source_name": "data acquisition", "target_name": "signal processing", "weight": 1.0, "year": 2010}, {"source": "7", "target": "67", "source_name": "data acquisition", "target_name": "image processing", "weight": 1.0, "year": 2010}, {"source": "8", "target": "50", "source_name": "future directions", "target_name": "user interface", "weight": 1.0, "year": 2010}, {"source": "8", "target": "86", "source_name": "future directions", "target_name": "graphical user interface", "weight": 1.0, "year": 2010}, {"source": "9", "target": "21", "source_name": "object oriented", "target_name": "graphical interface", "weight": 1.0, "year": 2010}, {"source": "9", "target": "79", "source_name": "object oriented", "target_name": "geometric modeling", "weight": 1.0, "year": 2010}, {"source": "9", "target": "85", "source_name": "object oriented", "target_name": "artificial intelligence", "weight": 1.0, "year": 2010}, {"source": "10", "target": "39", "source_name": "mobile phone", "target_name": "display device", "weight": 1.0, "year": 2010}, {"source": "10", "target": "50", "source_name": "mobile phone", "target_name": "user interface", "weight": 1.0, "year": 2010}, {"source": "10", "target": "69", "source_name": "mobile phone", "target_name": "mobile devices", "weight": 3.0, "year": 2010}, {"source": "11", "target": "33", "source_name": "software engineering", "target_name": "parallel processing", "weight": 1.0, "year": 2010}, {"source": "11", "target": "36", "source_name": "software engineering", "target_name": "data visualization", "weight": 1.0, "year": 2010}, {"source": "11", "target": "43", "source_name": "software engineering", "target_name": "virtual reality", "weight": 1.0, "year": 2010}, {"source": "11", "target": "50", "source_name": "software engineering", "target_name": "user interface", "weight": 1.0, "year": 2010}, {"source": "11", "target": "51", "source_name": "software engineering", "target_name": "global illumination", "weight": 1.0, "year": 2010}, {"source": "11", "target": "52", "source_name": "software engineering", "target_name": "graphics cards", "weight": 1.0, "year": 2010}, {"source": "11", "target": "78", "source_name": "software engineering", "target_name": "ray tracing", "weight": 1.0, "year": 2010}, {"source": "12", "target": "33", "source_name": "graphics processor", "target_name": "parallel processing", "weight": 1.0, "year": 2010}, {"source": "12", "target": "43", "source_name": "graphics processor", "target_name": "virtual reality", "weight": 1.0, "year": 2010}, {"source": "12", "target": "52", "source_name": "graphics processor", "target_name": "graphics cards", "weight": 2.0, "year": 2010}, {"source": "12", "target": "60", "source_name": "graphics processor", "target_name": "floating point", "weight": 1.0, "year": 2010}, {"source": "12", "target": "64", "source_name": "graphics processor", "target_name": "scientific visualization", "weight": 1.0, "year": 2010}, {"source": "12", "target": "65", "source_name": "graphics processor", "target_name": "programming language", "weight": 2.0, "year": 2010}, {"source": "12", "target": "67", "source_name": "graphics processor", "target_name": "image processing", "weight": 1.0, "year": 2010}, {"source": "12", "target": "78", "source_name": "graphics processor", "target_name": "ray tracing", "weight": 1.0, "year": 2010}, {"source": "12", "target": "83", "source_name": "graphics processor", "target_name": "graphics processing unit", "weight": 1.0, "year": 2010}, {"source": "12", "target": "85", "source_name": "graphics processor", "target_name": "artificial intelligence", "weight": 1.0, "year": 2010}, {"source": "13", "target": "43", "source_name": "augmented reality", "target_name": "virtual reality", "weight": 1.0, "year": 2010}, {"source": "13", "target": "67", "source_name": "augmented reality", "target_name": "image processing", "weight": 1.0, "year": 2010}, {"source": "14", "target": "43", "source_name": "human perception", "target_name": "virtual reality", "weight": 2.0, "year": 2010}, {"source": "14", "target": "50", "source_name": "human perception", "target_name": "user interface", "weight": 2.0, "year": 2010}, {"source": "14", "target": "60", "source_name": "human perception", "target_name": "floating point", "weight": 2.0, "year": 2010}, {"source": "14", "target": "71", "source_name": "human perception", "target_name": "embedded systems", "weight": 2.0, "year": 2010}, {"source": "14", "target": "80", "source_name": "human perception", "target_name": "virtual environments", "weight": 1.0, "year": 2010}, {"source": "16", "target": "53", "source_name": "high school", "target_name": "graphic novels", "weight": 1.0, "year": 2010}, {"source": "16", "target": "70", "source_name": "high school", "target_name": "solid modeling", "weight": 1.0, "year": 2010}, {"source": "16", "target": "74", "source_name": "high school", "target_name": "united states", "weight": 1.0, "year": 2010}, {"source": "17", "target": "85", "source_name": "probabilistic graphical models", "target_name": "artificial intelligence", "weight": 1.0, "year": 2010}, {"source": "20", "target": "47", "source_name": "higher education", "target_name": "descriptive geometry", "weight": 1.0, "year": 2010}, {"source": "21", "target": "23", "source_name": "graphical interface", "target_name": "modeling language", "weight": 1.0, "year": 2010}, {"source": "21", "target": "44", "source_name": "graphical interface", "target_name": "source code", "weight": 1.0, "year": 2010}, {"source": "21", "target": "50", "source_name": "graphical interface", "target_name": "user interface", "weight": 2.0, "year": 2010}, {"source": "21", "target": "65", "source_name": "graphical interface", "target_name": "programming language", "weight": 1.0, "year": 2010}, {"source": "21", "target": "86", "source_name": "graphical interface", "target_name": "graphical user interface", "weight": 4.0, "year": 2010}, {"source": "23", "target": "43", "source_name": "modeling language", "target_name": "virtual reality", "weight": 1.0, "year": 2010}, {"source": "23", "target": "50", "source_name": "modeling language", "target_name": "user interface", "weight": 1.0, "year": 2010}, {"source": "26", "target": "53", "source_name": "comic book", "target_name": "graphic novels", "weight": 1.0, "year": 2010}, {"source": "27", "target": "53", "source_name": "media literacy", "target_name": "graphic novels", "weight": 1.0, "year": 2010}, {"source": "29", "target": "79", "source_name": "teaching reform", "target_name": "geometric modeling", "weight": 1.0, "year": 2010}, {"source": "30", "target": "36", "source_name": "graphic designer", "target_name": "data visualization", "weight": 1.0, "year": 2010}, {"source": "30", "target": "38", "source_name": "graphic designer", "target_name": "vector graphics", "weight": 1.0, "year": 2010}, {"source": "30", "target": "42", "source_name": "graphic designer", "target_name": "line graph", "weight": 1.0, "year": 2010}, {"source": "30", "target": "61", "source_name": "graphic designer", "target_name": "hong kong", "weight": 1.0, "year": 2010}, {"source": "30", "target": "86", "source_name": "graphic designer", "target_name": "graphical user interface", "weight": 1.0, "year": 2010}, {"source": "31", "target": "37", "source_name": "magnetic field", "target_name": "eddy current", "weight": 1.0, "year": 2010}, {"source": "31", "target": "50", "source_name": "magnetic field", "target_name": "user interface", "weight": 1.0, "year": 2010}, {"source": "32", "target": "65", "source_name": "open source", "target_name": "programming language", "weight": 1.0, "year": 2010}, {"source": "33", "target": "36", "source_name": "parallel processing", "target_name": "data visualization", "weight": 1.0, "year": 2010}, {"source": "33", "target": "43", "source_name": "parallel processing", "target_name": "virtual reality", "weight": 2.0, "year": 2010}, {"source": "33", "target": "51", "source_name": "parallel processing", "target_name": "global illumination", "weight": 1.0, "year": 2010}, {"source": "33", "target": "52", "source_name": "parallel processing", "target_name": "graphics cards", "weight": 1.0, "year": 2010}, {"source": "33", "target": "78", "source_name": "parallel processing", "target_name": "ray tracing", "weight": 1.0, "year": 2010}, {"source": "33", "target": "83", "source_name": "parallel processing", "target_name": "graphics processing unit", "weight": 1.0, "year": 2010}, {"source": "33", "target": "86", "source_name": "parallel processing", "target_name": "graphical user interface", "weight": 1.0, "year": 2010}, {"source": "36", "target": "42", "source_name": "data visualization", "target_name": "line graph", "weight": 1.0, "year": 2010}, {"source": "36", "target": "50", "source_name": "data visualization", "target_name": "user interface", "weight": 1.0, "year": 2010}, {"source": "36", "target": "69", "source_name": "data visualization", "target_name": "mobile devices", "weight": 1.0, "year": 2010}, {"source": "36", "target": "82", "source_name": "data visualization", "target_name": "data mining", "weight": 1.0, "year": 2010}, {"source": "37", "target": "50", "source_name": "eddy current", "target_name": "user interface", "weight": 1.0, "year": 2010}, {"source": "38", "target": "50", "source_name": "vector graphics", "target_name": "user interface", "weight": 1.0, "year": 2010}, {"source": "38", "target": "62", "source_name": "vector graphics", "target_name": "pattern recognition", "weight": 1.0, "year": 2010}, {"source": "38", "target": "73", "source_name": "vector graphics", "target_name": "engineering drawing", "weight": 1.0, "year": 2010}, {"source": "38", "target": "77", "source_name": "vector graphics", "target_name": "scalable vector graphics", "weight": 14.0, "year": 2010}, {"source": "38", "target": "86", "source_name": "vector graphics", "target_name": "graphical user interface", "weight": 1.0, "year": 2010}, {"source": "39", "target": "40", "source_name": "display device", "target_name": "frame buffer", "weight": 1.0, "year": 2010}, {"source": "39", "target": "50", "source_name": "display device", "target_name": "user interface", "weight": 4.0, "year": 2010}, {"source": "39", "target": "86", "source_name": "display device", "target_name": "graphical user interface", "weight": 1.0, "year": 2010}, {"source": "43", "target": "47", "source_name": "virtual reality", "target_name": "descriptive geometry", "weight": 1.0, "year": 2010}, {"source": "43", "target": "50", "source_name": "virtual reality", "target_name": "user interface", "weight": 4.0, "year": 2010}, {"source": "43", "target": "51", "source_name": "virtual reality", "target_name": "global illumination", "weight": 1.0, "year": 2010}, {"source": "43", "target": "52", "source_name": "virtual reality", "target_name": "graphics cards", "weight": 1.0, "year": 2010}, {"source": "43", "target": "60", "source_name": "virtual reality", "target_name": "floating point", "weight": 2.0, "year": 2010}, {"source": "43", "target": "61", "source_name": "virtual reality", "target_name": "hong kong", "weight": 1.0, "year": 2010}, {"source": "43", "target": "64", "source_name": "virtual reality", "target_name": "scientific visualization", "weight": 3.0, "year": 2010}, {"source": "43", "target": "65", "source_name": "virtual reality", "target_name": "programming language", "weight": 1.0, "year": 2010}, {"source": "43", "target": "67", "source_name": "virtual reality", "target_name": "image processing", "weight": 2.0, "year": 2010}, {"source": "43", "target": "71", "source_name": "virtual reality", "target_name": "embedded systems", "weight": 2.0, "year": 2010}, {"source": "43", "target": "78", "source_name": "virtual reality", "target_name": "ray tracing", "weight": 1.0, "year": 2010}, {"source": "43", "target": "83", "source_name": "virtual reality", "target_name": "graphics processing unit", "weight": 2.0, "year": 2010}, {"source": "43", "target": "85", "source_name": "virtual reality", "target_name": "artificial intelligence", "weight": 1.0, "year": 2010}, {"source": "44", "target": "50", "source_name": "source code", "target_name": "user interface", "weight": 1.0, "year": 2010}, {"source": "44", "target": "65", "source_name": "source code", "target_name": "programming language", "weight": 1.0, "year": 2010}, {"source": "44", "target": "79", "source_name": "source code", "target_name": "geometric modeling", "weight": 1.0, "year": 2010}, {"source": "44", "target": "86", "source_name": "source code", "target_name": "graphical user interface", "weight": 2.0, "year": 2010}, {"source": "45", "target": "67", "source_name": "international conference", "target_name": "image processing", "weight": 2.0, "year": 2010}, {"source": "45", "target": "70", "source_name": "international conference", "target_name": "solid modeling", "weight": 2.0, "year": 2010}, {"source": "46", "target": "52", "source_name": "neural network", "target_name": "graphics cards", "weight": 1.0, "year": 2010}, {"source": "46", "target": "83", "source_name": "neural network", "target_name": "graphics processing unit", "weight": 1.0, "year": 2010}, {"source": "47", "target": "64", "source_name": "descriptive geometry", "target_name": "scientific visualization", "weight": 1.0, "year": 2010}, {"source": "47", "target": "67", "source_name": "descriptive geometry", "target_name": "image processing", "weight": 1.0, "year": 2010}, {"source": "47", "target": "73", "source_name": "descriptive geometry", "target_name": "engineering drawing", "weight": 1.0, "year": 2010}, {"source": "50", "target": "59", "source_name": "user interface", "target_name": "machine learning", "weight": 1.0, "year": 2010}, {"source": "50", "target": "60", "source_name": "user interface", "target_name": "floating point", "weight": 2.0, "year": 2010}, {"source": "50", "target": "62", "source_name": "user interface", "target_name": "pattern recognition", "weight": 1.0, "year": 2010}, {"source": "50", "target": "71", "source_name": "user interface", "target_name": "embedded systems", "weight": 2.0, "year": 2010}, {"source": "50", "target": "73", "source_name": "user interface", "target_name": "engineering drawing", "weight": 1.0, "year": 2010}, {"source": "50", "target": "77", "source_name": "user interface", "target_name": "scalable vector graphics", "weight": 1.0, "year": 2010}, {"source": "50", "target": "82", "source_name": "user interface", "target_name": "data mining", "weight": 1.0, "year": 2010}, {"source": "50", "target": "86", "source_name": "user interface", "target_name": "graphical user interface", "weight": 23.0, "year": 2010}, {"source": "51", "target": "52", "source_name": "global illumination", "target_name": "graphics cards", "weight": 1.0, "year": 2010}, {"source": "51", "target": "78", "source_name": "global illumination", "target_name": "ray tracing", "weight": 2.0, "year": 2010}, {"source": "51", "target": "79", "source_name": "global illumination", "target_name": "geometric modeling", "weight": 1.0, "year": 2010}, {"source": "52", "target": "60", "source_name": "graphics cards", "target_name": "floating point", "weight": 3.0, "year": 2010}, {"source": "52", "target": "78", "source_name": "graphics cards", "target_name": "ray tracing", "weight": 1.0, "year": 2010}, {"source": "52", "target": "83", "source_name": "graphics cards", "target_name": "graphics processing unit", "weight": 6.0, "year": 2010}, {"source": "52", "target": "84", "source_name": "graphics cards", "target_name": "frame rate", "weight": 4.0, "year": 2010}, {"source": "53", "target": "72", "source_name": "graphic novels", "target_name": "public libraries", "weight": 1.0, "year": 2010}, {"source": "59", "target": "86", "source_name": "machine learning", "target_name": "graphical user interface", "weight": 1.0, "year": 2010}, {"source": "60", "target": "71", "source_name": "floating point", "target_name": "embedded systems", "weight": 2.0, "year": 2010}, {"source": "62", "target": "67", "source_name": "pattern recognition", "target_name": "image processing", "weight": 1.0, "year": 2010}, {"source": "62", "target": "73", "source_name": "pattern recognition", "target_name": "engineering drawing", "weight": 2.0, "year": 2010}, {"source": "63", "target": "67", "source_name": "signal processing", "target_name": "image processing", "weight": 1.0, "year": 2010}, {"source": "63", "target": "71", "source_name": "signal processing", "target_name": "embedded systems", "weight": 1.0, "year": 2010}, {"source": "64", "target": "65", "source_name": "scientific visualization", "target_name": "programming language", "weight": 1.0, "year": 2010}, {"source": "64", "target": "67", "source_name": "scientific visualization", "target_name": "image processing", "weight": 1.0, "year": 2010}, {"source": "65", "target": "67", "source_name": "programming language", "target_name": "image processing", "weight": 1.0, "year": 2010}, {"source": "65", "target": "78", "source_name": "programming language", "target_name": "ray tracing", "weight": 1.0, "year": 2010}, {"source": "65", "target": "79", "source_name": "programming language", "target_name": "geometric modeling", "weight": 1.0, "year": 2010}, {"source": "65", "target": "85", "source_name": "programming language", "target_name": "artificial intelligence", "weight": 1.0, "year": 2010}, {"source": "65", "target": "86", "source_name": "programming language", "target_name": "graphical user interface", "weight": 1.0, "year": 2010}, {"source": "67", "target": "70", "source_name": "image processing", "target_name": "solid modeling", "weight": 2.0, "year": 2010}, {"source": "67", "target": "78", "source_name": "image processing", "target_name": "ray tracing", "weight": 1.0, "year": 2010}, {"source": "67", "target": "83", "source_name": "image processing", "target_name": "graphics processing unit", "weight": 2.0, "year": 2010}, {"source": "70", "target": "74", "source_name": "solid modeling", "target_name": "united states", "weight": 1.0, "year": 2010}, {"source": "78", "target": "79", "source_name": "ray tracing", "target_name": "geometric modeling", "weight": 2.0, "year": 2010}, {"source": "78", "target": "83", "source_name": "ray tracing", "target_name": "graphics processing unit", "weight": 1.0, "year": 2010}, {"source": "79", "target": "85", "source_name": "geometric modeling", "target_name": "artificial intelligence", "weight": 1.0, "year": 2010}, {"source": "80", "target": "83", "source_name": "virtual environments", "target_name": "graphics processing unit", "weight": 1.0, "year": 2010}, {"source": "80", "target": "85", "source_name": "virtual environments", "target_name": "artificial intelligence", "weight": 1.0, "year": 2010}, {"source": "82", "target": "86", "source_name": "data mining", "target_name": "graphical user interface", "weight": 1.0, "year": 2010}, {"source": "83", "target": "84", "source_name": "graphics processing unit", "target_name": "frame rate", "weight": 3.0, "year": 2010}, {"source": "85", "target": "86", "source_name": "artificial intelligence", "target_name": "graphical user interface", "weight": 1.0, "year": 2010}]}, {"2011": [{"source": "1", "target": "36", "source_name": "web page", "target_name": "data visualization", "weight": 1.0, "year": 2011}, {"source": "1", "target": "38", "source_name": "web page", "target_name": "vector graphics", "weight": 1.0, "year": 2011}, {"source": "1", "target": "77", "source_name": "web page", "target_name": "scalable vector graphics", "weight": 1.0, "year": 2011}, {"source": "1", "target": "82", "source_name": "web page", "target_name": "data mining", "weight": 1.0, "year": 2011}, {"source": "1", "target": "84", "source_name": "web page", "target_name": "frame rate", "weight": 1.0, "year": 2011}, {"source": "2", "target": "10", "source_name": "visual communication", "target_name": "mobile phone", "weight": 1.0, "year": 2011}, {"source": "2", "target": "15", "source_name": "visual communication", "target_name": "problem solving", "weight": 1.0, "year": 2011}, {"source": "2", "target": "30", "source_name": "visual communication", "target_name": "graphic designer", "weight": 1.0, "year": 2011}, {"source": "2", "target": "39", "source_name": "visual communication", "target_name": "display device", "weight": 1.0, "year": 2011}, {"source": "2", "target": "50", "source_name": "visual communication", "target_name": "user interface", "weight": 2.0, "year": 2011}, {"source": "2", "target": "58", "source_name": "visual communication", "target_name": "chinese character", "weight": 1.0, "year": 2011}, {"source": "2", "target": "86", "source_name": "visual communication", "target_name": "graphical user interface", "weight": 1.0, "year": 2011}, {"source": "3", "target": "63", "source_name": "statistical methods", "target_name": "signal processing", "weight": 1.0, "year": 2011}, {"source": "3", "target": "67", "source_name": "statistical methods", "target_name": "image processing", "weight": 1.0, "year": 2011}, {"source": "6", "target": "12", "source_name": "parallel computing", "target_name": "graphics processor", "weight": 2.0, "year": 2011}, {"source": "6", "target": "33", "source_name": "parallel computing", "target_name": "parallel processing", "weight": 1.0, "year": 2011}, {"source": "6", "target": "50", "source_name": "parallel computing", "target_name": "user interface", "weight": 1.0, "year": 2011}, {"source": "6", "target": "52", "source_name": "parallel computing", "target_name": "graphics cards", "weight": 2.0, "year": 2011}, {"source": "6", "target": "60", "source_name": "parallel computing", "target_name": "floating point", "weight": 1.0, "year": 2011}, {"source": "6", "target": "83", "source_name": "parallel computing", "target_name": "graphics processing unit", "weight": 3.0, "year": 2011}, {"source": "6", "target": "86", "source_name": "parallel computing", "target_name": "graphical user interface", "weight": 1.0, "year": 2011}, {"source": "7", "target": "21", "source_name": "data acquisition", "target_name": "graphical interface", "weight": 1.0, "year": 2011}, {"source": "7", "target": "50", "source_name": "data acquisition", "target_name": "user interface", "weight": 1.0, "year": 2011}, {"source": "7", "target": "63", "source_name": "data acquisition", "target_name": "signal processing", "weight": 1.0, "year": 2011}, {"source": "7", "target": "67", "source_name": "data acquisition", "target_name": "image processing", "weight": 1.0, "year": 2011}, {"source": "8", "target": "50", "source_name": "future directions", "target_name": "user interface", "weight": 1.0, "year": 2011}, {"source": "8", "target": "86", "source_name": "future directions", "target_name": "graphical user interface", "weight": 1.0, "year": 2011}, {"source": "9", "target": "21", "source_name": "object oriented", "target_name": "graphical interface", "weight": 1.0, "year": 2011}, {"source": "9", "target": "79", "source_name": "object oriented", "target_name": "geometric modeling", "weight": 1.0, "year": 2011}, {"source": "9", "target": "85", "source_name": "object oriented", "target_name": "artificial intelligence", "weight": 1.0, "year": 2011}, {"source": "10", "target": "39", "source_name": "mobile phone", "target_name": "display device", "weight": 1.0, "year": 2011}, {"source": "10", "target": "50", "source_name": "mobile phone", "target_name": "user interface", "weight": 1.0, "year": 2011}, {"source": "10", "target": "69", "source_name": "mobile phone", "target_name": "mobile devices", "weight": 3.0, "year": 2011}, {"source": "11", "target": "33", "source_name": "software engineering", "target_name": "parallel processing", "weight": 1.0, "year": 2011}, {"source": "11", "target": "36", "source_name": "software engineering", "target_name": "data visualization", "weight": 1.0, "year": 2011}, {"source": "11", "target": "43", "source_name": "software engineering", "target_name": "virtual reality", "weight": 1.0, "year": 2011}, {"source": "11", "target": "50", "source_name": "software engineering", "target_name": "user interface", "weight": 1.0, "year": 2011}, {"source": "11", "target": "51", "source_name": "software engineering", "target_name": "global illumination", "weight": 1.0, "year": 2011}, {"source": "11", "target": "52", "source_name": "software engineering", "target_name": "graphics cards", "weight": 2.0, "year": 2011}, {"source": "11", "target": "78", "source_name": "software engineering", "target_name": "ray tracing", "weight": 1.0, "year": 2011}, {"source": "12", "target": "33", "source_name": "graphics processor", "target_name": "parallel processing", "weight": 1.0, "year": 2011}, {"source": "12", "target": "43", "source_name": "graphics processor", "target_name": "virtual reality", "weight": 1.0, "year": 2011}, {"source": "12", "target": "52", "source_name": "graphics processor", "target_name": "graphics cards", "weight": 2.0, "year": 2011}, {"source": "12", "target": "60", "source_name": "graphics processor", "target_name": "floating point", "weight": 1.0, "year": 2011}, {"source": "12", "target": "64", "source_name": "graphics processor", "target_name": "scientific visualization", "weight": 1.0, "year": 2011}, {"source": "12", "target": "65", "source_name": "graphics processor", "target_name": "programming language", "weight": 2.0, "year": 2011}, {"source": "12", "target": "67", "source_name": "graphics processor", "target_name": "image processing", "weight": 1.0, "year": 2011}, {"source": "12", "target": "78", "source_name": "graphics processor", "target_name": "ray tracing", "weight": 1.0, "year": 2011}, {"source": "12", "target": "83", "source_name": "graphics processor", "target_name": "graphics processing unit", "weight": 2.0, "year": 2011}, {"source": "12", "target": "85", "source_name": "graphics processor", "target_name": "artificial intelligence", "weight": 1.0, "year": 2011}, {"source": "13", "target": "43", "source_name": "augmented reality", "target_name": "virtual reality", "weight": 1.0, "year": 2011}, {"source": "13", "target": "67", "source_name": "augmented reality", "target_name": "image processing", "weight": 1.0, "year": 2011}, {"source": "14", "target": "43", "source_name": "human perception", "target_name": "virtual reality", "weight": 2.0, "year": 2011}, {"source": "14", "target": "50", "source_name": "human perception", "target_name": "user interface", "weight": 2.0, "year": 2011}, {"source": "14", "target": "60", "source_name": "human perception", "target_name": "floating point", "weight": 2.0, "year": 2011}, {"source": "14", "target": "71", "source_name": "human perception", "target_name": "embedded systems", "weight": 2.0, "year": 2011}, {"source": "14", "target": "80", "source_name": "human perception", "target_name": "virtual environments", "weight": 1.0, "year": 2011}, {"source": "14", "target": "86", "source_name": "human perception", "target_name": "graphical user interface", "weight": 1.0, "year": 2011}, {"source": "16", "target": "28", "source_name": "high school", "target_name": "current account", "weight": 1.0, "year": 2011}, {"source": "16", "target": "49", "source_name": "high school", "target_name": "graphic arts", "weight": 1.0, "year": 2011}, {"source": "16", "target": "53", "source_name": "high school", "target_name": "graphic novels", "weight": 1.0, "year": 2011}, {"source": "16", "target": "70", "source_name": "high school", "target_name": "solid modeling", "weight": 1.0, "year": 2011}, {"source": "16", "target": "74", "source_name": "high school", "target_name": "united states", "weight": 1.0, "year": 2011}, {"source": "17", "target": "85", "source_name": "probabilistic graphical models", "target_name": "artificial intelligence", "weight": 1.0, "year": 2011}, {"source": "20", "target": "29", "source_name": "higher education", "target_name": "teaching reform", "weight": 1.0, "year": 2011}, {"source": "20", "target": "47", "source_name": "higher education", "target_name": "descriptive geometry", "weight": 1.0, "year": 2011}, {"source": "21", "target": "23", "source_name": "graphical interface", "target_name": "modeling language", "weight": 1.0, "year": 2011}, {"source": "21", "target": "44", "source_name": "graphical interface", "target_name": "source code", "weight": 1.0, "year": 2011}, {"source": "21", "target": "50", "source_name": "graphical interface", "target_name": "user interface", "weight": 2.0, "year": 2011}, {"source": "21", "target": "65", "source_name": "graphical interface", "target_name": "programming language", "weight": 1.0, "year": 2011}, {"source": "21", "target": "86", "source_name": "graphical interface", "target_name": "graphical user interface", "weight": 4.0, "year": 2011}, {"source": "23", "target": "43", "source_name": "modeling language", "target_name": "virtual reality", "weight": 1.0, "year": 2011}, {"source": "23", "target": "50", "source_name": "modeling language", "target_name": "user interface", "weight": 1.0, "year": 2011}, {"source": "26", "target": "53", "source_name": "comic book", "target_name": "graphic novels", "weight": 1.0, "year": 2011}, {"source": "27", "target": "53", "source_name": "media literacy", "target_name": "graphic novels", "weight": 1.0, "year": 2011}, {"source": "29", "target": "79", "source_name": "teaching reform", "target_name": "geometric modeling", "weight": 1.0, "year": 2011}, {"source": "30", "target": "36", "source_name": "graphic designer", "target_name": "data visualization", "weight": 1.0, "year": 2011}, {"source": "30", "target": "38", "source_name": "graphic designer", "target_name": "vector graphics", "weight": 1.0, "year": 2011}, {"source": "30", "target": "42", "source_name": "graphic designer", "target_name": "line graph", "weight": 1.0, "year": 2011}, {"source": "30", "target": "61", "source_name": "graphic designer", "target_name": "hong kong", "weight": 1.0, "year": 2011}, {"source": "30", "target": "86", "source_name": "graphic designer", "target_name": "graphical user interface", "weight": 1.0, "year": 2011}, {"source": "31", "target": "37", "source_name": "magnetic field", "target_name": "eddy current", "weight": 1.0, "year": 2011}, {"source": "31", "target": "50", "source_name": "magnetic field", "target_name": "user interface", "weight": 1.0, "year": 2011}, {"source": "32", "target": "65", "source_name": "open source", "target_name": "programming language", "weight": 1.0, "year": 2011}, {"source": "33", "target": "36", "source_name": "parallel processing", "target_name": "data visualization", "weight": 1.0, "year": 2011}, {"source": "33", "target": "43", "source_name": "parallel processing", "target_name": "virtual reality", "weight": 2.0, "year": 2011}, {"source": "33", "target": "51", "source_name": "parallel processing", "target_name": "global illumination", "weight": 1.0, "year": 2011}, {"source": "33", "target": "52", "source_name": "parallel processing", "target_name": "graphics cards", "weight": 1.0, "year": 2011}, {"source": "33", "target": "78", "source_name": "parallel processing", "target_name": "ray tracing", "weight": 1.0, "year": 2011}, {"source": "33", "target": "83", "source_name": "parallel processing", "target_name": "graphics processing unit", "weight": 2.0, "year": 2011}, {"source": "33", "target": "86", "source_name": "parallel processing", "target_name": "graphical user interface", "weight": 1.0, "year": 2011}, {"source": "36", "target": "42", "source_name": "data visualization", "target_name": "line graph", "weight": 1.0, "year": 2011}, {"source": "36", "target": "50", "source_name": "data visualization", "target_name": "user interface", "weight": 1.0, "year": 2011}, {"source": "36", "target": "69", "source_name": "data visualization", "target_name": "mobile devices", "weight": 1.0, "year": 2011}, {"source": "36", "target": "82", "source_name": "data visualization", "target_name": "data mining", "weight": 1.0, "year": 2011}, {"source": "37", "target": "50", "source_name": "eddy current", "target_name": "user interface", "weight": 1.0, "year": 2011}, {"source": "38", "target": "50", "source_name": "vector graphics", "target_name": "user interface", "weight": 1.0, "year": 2011}, {"source": "38", "target": "62", "source_name": "vector graphics", "target_name": "pattern recognition", "weight": 1.0, "year": 2011}, {"source": "38", "target": "73", "source_name": "vector graphics", "target_name": "engineering drawing", "weight": 1.0, "year": 2011}, {"source": "38", "target": "77", "source_name": "vector graphics", "target_name": "scalable vector graphics", "weight": 14.0, "year": 2011}, {"source": "38", "target": "86", "source_name": "vector graphics", "target_name": "graphical user interface", "weight": 1.0, "year": 2011}, {"source": "39", "target": "40", "source_name": "display device", "target_name": "frame buffer", "weight": 1.0, "year": 2011}, {"source": "39", "target": "50", "source_name": "display device", "target_name": "user interface", "weight": 4.0, "year": 2011}, {"source": "39", "target": "86", "source_name": "display device", "target_name": "graphical user interface", "weight": 1.0, "year": 2011}, {"source": "43", "target": "47", "source_name": "virtual reality", "target_name": "descriptive geometry", "weight": 1.0, "year": 2011}, {"source": "43", "target": "50", "source_name": "virtual reality", "target_name": "user interface", "weight": 4.0, "year": 2011}, {"source": "43", "target": "51", "source_name": "virtual reality", "target_name": "global illumination", "weight": 1.0, "year": 2011}, {"source": "43", "target": "52", "source_name": "virtual reality", "target_name": "graphics cards", "weight": 1.0, "year": 2011}, {"source": "43", "target": "60", "source_name": "virtual reality", "target_name": "floating point", "weight": 2.0, "year": 2011}, {"source": "43", "target": "61", "source_name": "virtual reality", "target_name": "hong kong", "weight": 1.0, "year": 2011}, {"source": "43", "target": "64", "source_name": "virtual reality", "target_name": "scientific visualization", "weight": 3.0, "year": 2011}, {"source": "43", "target": "65", "source_name": "virtual reality", "target_name": "programming language", "weight": 1.0, "year": 2011}, {"source": "43", "target": "67", "source_name": "virtual reality", "target_name": "image processing", "weight": 2.0, "year": 2011}, {"source": "43", "target": "71", "source_name": "virtual reality", "target_name": "embedded systems", "weight": 2.0, "year": 2011}, {"source": "43", "target": "78", "source_name": "virtual reality", "target_name": "ray tracing", "weight": 1.0, "year": 2011}, {"source": "43", "target": "83", "source_name": "virtual reality", "target_name": "graphics processing unit", "weight": 2.0, "year": 2011}, {"source": "43", "target": "85", "source_name": "virtual reality", "target_name": "artificial intelligence", "weight": 1.0, "year": 2011}, {"source": "44", "target": "50", "source_name": "source code", "target_name": "user interface", "weight": 1.0, "year": 2011}, {"source": "44", "target": "65", "source_name": "source code", "target_name": "programming language", "weight": 1.0, "year": 2011}, {"source": "44", "target": "79", "source_name": "source code", "target_name": "geometric modeling", "weight": 1.0, "year": 2011}, {"source": "44", "target": "86", "source_name": "source code", "target_name": "graphical user interface", "weight": 2.0, "year": 2011}, {"source": "45", "target": "67", "source_name": "international conference", "target_name": "image processing", "weight": 2.0, "year": 2011}, {"source": "45", "target": "70", "source_name": "international conference", "target_name": "solid modeling", "weight": 2.0, "year": 2011}, {"source": "46", "target": "52", "source_name": "neural network", "target_name": "graphics cards", "weight": 1.0, "year": 2011}, {"source": "46", "target": "83", "source_name": "neural network", "target_name": "graphics processing unit", "weight": 1.0, "year": 2011}, {"source": "47", "target": "64", "source_name": "descriptive geometry", "target_name": "scientific visualization", "weight": 1.0, "year": 2011}, {"source": "47", "target": "67", "source_name": "descriptive geometry", "target_name": "image processing", "weight": 1.0, "year": 2011}, {"source": "47", "target": "73", "source_name": "descriptive geometry", "target_name": "engineering drawing", "weight": 1.0, "year": 2011}, {"source": "50", "target": "59", "source_name": "user interface", "target_name": "machine learning", "weight": 1.0, "year": 2011}, {"source": "50", "target": "60", "source_name": "user interface", "target_name": "floating point", "weight": 2.0, "year": 2011}, {"source": "50", "target": "62", "source_name": "user interface", "target_name": "pattern recognition", "weight": 1.0, "year": 2011}, {"source": "50", "target": "71", "source_name": "user interface", "target_name": "embedded systems", "weight": 3.0, "year": 2011}, {"source": "50", "target": "73", "source_name": "user interface", "target_name": "engineering drawing", "weight": 1.0, "year": 2011}, {"source": "50", "target": "77", "source_name": "user interface", "target_name": "scalable vector graphics", "weight": 1.0, "year": 2011}, {"source": "50", "target": "82", "source_name": "user interface", "target_name": "data mining", "weight": 1.0, "year": 2011}, {"source": "50", "target": "86", "source_name": "user interface", "target_name": "graphical user interface", "weight": 27.0, "year": 2011}, {"source": "51", "target": "52", "source_name": "global illumination", "target_name": "graphics cards", "weight": 1.0, "year": 2011}, {"source": "51", "target": "78", "source_name": "global illumination", "target_name": "ray tracing", "weight": 2.0, "year": 2011}, {"source": "51", "target": "79", "source_name": "global illumination", "target_name": "geometric modeling", "weight": 1.0, "year": 2011}, {"source": "52", "target": "60", "source_name": "graphics cards", "target_name": "floating point", "weight": 3.0, "year": 2011}, {"source": "52", "target": "64", "source_name": "graphics cards", "target_name": "scientific visualization", "weight": 1.0, "year": 2011}, {"source": "52", "target": "78", "source_name": "graphics cards", "target_name": "ray tracing", "weight": 1.0, "year": 2011}, {"source": "52", "target": "83", "source_name": "graphics cards", "target_name": "graphics processing unit", "weight": 7.0, "year": 2011}, {"source": "52", "target": "84", "source_name": "graphics cards", "target_name": "frame rate", "weight": 4.0, "year": 2011}, {"source": "53", "target": "72", "source_name": "graphic novels", "target_name": "public libraries", "weight": 1.0, "year": 2011}, {"source": "59", "target": "86", "source_name": "machine learning", "target_name": "graphical user interface", "weight": 1.0, "year": 2011}, {"source": "60", "target": "71", "source_name": "floating point", "target_name": "embedded systems", "weight": 2.0, "year": 2011}, {"source": "62", "target": "67", "source_name": "pattern recognition", "target_name": "image processing", "weight": 1.0, "year": 2011}, {"source": "62", "target": "73", "source_name": "pattern recognition", "target_name": "engineering drawing", "weight": 2.0, "year": 2011}, {"source": "63", "target": "67", "source_name": "signal processing", "target_name": "image processing", "weight": 1.0, "year": 2011}, {"source": "63", "target": "71", "source_name": "signal processing", "target_name": "embedded systems", "weight": 1.0, "year": 2011}, {"source": "64", "target": "65", "source_name": "scientific visualization", "target_name": "programming language", "weight": 1.0, "year": 2011}, {"source": "64", "target": "67", "source_name": "scientific visualization", "target_name": "image processing", "weight": 1.0, "year": 2011}, {"source": "64", "target": "83", "source_name": "scientific visualization", "target_name": "graphics processing unit", "weight": 1.0, "year": 2011}, {"source": "65", "target": "67", "source_name": "programming language", "target_name": "image processing", "weight": 1.0, "year": 2011}, {"source": "65", "target": "78", "source_name": "programming language", "target_name": "ray tracing", "weight": 1.0, "year": 2011}, {"source": "65", "target": "79", "source_name": "programming language", "target_name": "geometric modeling", "weight": 1.0, "year": 2011}, {"source": "65", "target": "85", "source_name": "programming language", "target_name": "artificial intelligence", "weight": 1.0, "year": 2011}, {"source": "65", "target": "86", "source_name": "programming language", "target_name": "graphical user interface", "weight": 1.0, "year": 2011}, {"source": "67", "target": "70", "source_name": "image processing", "target_name": "solid modeling", "weight": 2.0, "year": 2011}, {"source": "67", "target": "78", "source_name": "image processing", "target_name": "ray tracing", "weight": 1.0, "year": 2011}, {"source": "67", "target": "83", "source_name": "image processing", "target_name": "graphics processing unit", "weight": 2.0, "year": 2011}, {"source": "70", "target": "74", "source_name": "solid modeling", "target_name": "united states", "weight": 1.0, "year": 2011}, {"source": "78", "target": "79", "source_name": "ray tracing", "target_name": "geometric modeling", "weight": 2.0, "year": 2011}, {"source": "78", "target": "83", "source_name": "ray tracing", "target_name": "graphics processing unit", "weight": 1.0, "year": 2011}, {"source": "79", "target": "85", "source_name": "geometric modeling", "target_name": "artificial intelligence", "weight": 1.0, "year": 2011}, {"source": "80", "target": "83", "source_name": "virtual environments", "target_name": "graphics processing unit", "weight": 1.0, "year": 2011}, {"source": "80", "target": "85", "source_name": "virtual environments", "target_name": "artificial intelligence", "weight": 1.0, "year": 2011}, {"source": "82", "target": "86", "source_name": "data mining", "target_name": "graphical user interface", "weight": 1.0, "year": 2011}, {"source": "83", "target": "84", "source_name": "graphics processing unit", "target_name": "frame rate", "weight": 3.0, "year": 2011}, {"source": "85", "target": "86", "source_name": "artificial intelligence", "target_name": "graphical user interface", "weight": 1.0, "year": 2011}]}, {"2012": [{"source": "1", "target": "36", "source_name": "web page", "target_name": "data visualization", "weight": 1.0, "year": 2012}, {"source": "1", "target": "38", "source_name": "web page", "target_name": "vector graphics", "weight": 1.0, "year": 2012}, {"source": "1", "target": "77", "source_name": "web page", "target_name": "scalable vector graphics", "weight": 1.0, "year": 2012}, {"source": "1", "target": "82", "source_name": "web page", "target_name": "data mining", "weight": 1.0, "year": 2012}, {"source": "1", "target": "84", "source_name": "web page", "target_name": "frame rate", "weight": 1.0, "year": 2012}, {"source": "2", "target": "10", "source_name": "visual communication", "target_name": "mobile phone", "weight": 1.0, "year": 2012}, {"source": "2", "target": "15", "source_name": "visual communication", "target_name": "problem solving", "weight": 1.0, "year": 2012}, {"source": "2", "target": "20", "source_name": "visual communication", "target_name": "higher education", "weight": 1.0, "year": 2012}, {"source": "2", "target": "30", "source_name": "visual communication", "target_name": "graphic designer", "weight": 2.0, "year": 2012}, {"source": "2", "target": "39", "source_name": "visual communication", "target_name": "display device", "weight": 1.0, "year": 2012}, {"source": "2", "target": "50", "source_name": "visual communication", "target_name": "user interface", "weight": 2.0, "year": 2012}, {"source": "2", "target": "58", "source_name": "visual communication", "target_name": "chinese character", "weight": 1.0, "year": 2012}, {"source": "2", "target": "86", "source_name": "visual communication", "target_name": "graphical user interface", "weight": 1.0, "year": 2012}, {"source": "3", "target": "63", "source_name": "statistical methods", "target_name": "signal processing", "weight": 1.0, "year": 2012}, {"source": "3", "target": "67", "source_name": "statistical methods", "target_name": "image processing", "weight": 1.0, "year": 2012}, {"source": "6", "target": "12", "source_name": "parallel computing", "target_name": "graphics processor", "weight": 2.0, "year": 2012}, {"source": "6", "target": "33", "source_name": "parallel computing", "target_name": "parallel processing", "weight": 1.0, "year": 2012}, {"source": "6", "target": "50", "source_name": "parallel computing", "target_name": "user interface", "weight": 1.0, "year": 2012}, {"source": "6", "target": "52", "source_name": "parallel computing", "target_name": "graphics cards", "weight": 2.0, "year": 2012}, {"source": "6", "target": "60", "source_name": "parallel computing", "target_name": "floating point", "weight": 1.0, "year": 2012}, {"source": "6", "target": "83", "source_name": "parallel computing", "target_name": "graphics processing unit", "weight": 3.0, "year": 2012}, {"source": "6", "target": "86", "source_name": "parallel computing", "target_name": "graphical user interface", "weight": 1.0, "year": 2012}, {"source": "7", "target": "21", "source_name": "data acquisition", "target_name": "graphical interface", "weight": 1.0, "year": 2012}, {"source": "7", "target": "50", "source_name": "data acquisition", "target_name": "user interface", "weight": 1.0, "year": 2012}, {"source": "7", "target": "63", "source_name": "data acquisition", "target_name": "signal processing", "weight": 1.0, "year": 2012}, {"source": "7", "target": "67", "source_name": "data acquisition", "target_name": "image processing", "weight": 1.0, "year": 2012}, {"source": "8", "target": "50", "source_name": "future directions", "target_name": "user interface", "weight": 1.0, "year": 2012}, {"source": "8", "target": "86", "source_name": "future directions", "target_name": "graphical user interface", "weight": 1.0, "year": 2012}, {"source": "9", "target": "21", "source_name": "object oriented", "target_name": "graphical interface", "weight": 1.0, "year": 2012}, {"source": "9", "target": "79", "source_name": "object oriented", "target_name": "geometric modeling", "weight": 1.0, "year": 2012}, {"source": "9", "target": "85", "source_name": "object oriented", "target_name": "artificial intelligence", "weight": 1.0, "year": 2012}, {"source": "10", "target": "12", "source_name": "mobile phone", "target_name": "graphics processor", "weight": 1.0, "year": 2012}, {"source": "10", "target": "39", "source_name": "mobile phone", "target_name": "display device", "weight": 1.0, "year": 2012}, {"source": "10", "target": "50", "source_name": "mobile phone", "target_name": "user interface", "weight": 1.0, "year": 2012}, {"source": "10", "target": "69", "source_name": "mobile phone", "target_name": "mobile devices", "weight": 3.0, "year": 2012}, {"source": "11", "target": "33", "source_name": "software engineering", "target_name": "parallel processing", "weight": 1.0, "year": 2012}, {"source": "11", "target": "36", "source_name": "software engineering", "target_name": "data visualization", "weight": 1.0, "year": 2012}, {"source": "11", "target": "43", "source_name": "software engineering", "target_name": "virtual reality", "weight": 1.0, "year": 2012}, {"source": "11", "target": "50", "source_name": "software engineering", "target_name": "user interface", "weight": 1.0, "year": 2012}, {"source": "11", "target": "51", "source_name": "software engineering", "target_name": "global illumination", "weight": 1.0, "year": 2012}, {"source": "11", "target": "52", "source_name": "software engineering", "target_name": "graphics cards", "weight": 2.0, "year": 2012}, {"source": "11", "target": "78", "source_name": "software engineering", "target_name": "ray tracing", "weight": 1.0, "year": 2012}, {"source": "12", "target": "33", "source_name": "graphics processor", "target_name": "parallel processing", "weight": 1.0, "year": 2012}, {"source": "12", "target": "43", "source_name": "graphics processor", "target_name": "virtual reality", "weight": 1.0, "year": 2012}, {"source": "12", "target": "52", "source_name": "graphics processor", "target_name": "graphics cards", "weight": 3.0, "year": 2012}, {"source": "12", "target": "60", "source_name": "graphics processor", "target_name": "floating point", "weight": 1.0, "year": 2012}, {"source": "12", "target": "64", "source_name": "graphics processor", "target_name": "scientific visualization", "weight": 1.0, "year": 2012}, {"source": "12", "target": "65", "source_name": "graphics processor", "target_name": "programming language", "weight": 3.0, "year": 2012}, {"source": "12", "target": "67", "source_name": "graphics processor", "target_name": "image processing", "weight": 1.0, "year": 2012}, {"source": "12", "target": "78", "source_name": "graphics processor", "target_name": "ray tracing", "weight": 1.0, "year": 2012}, {"source": "12", "target": "83", "source_name": "graphics processor", "target_name": "graphics processing unit", "weight": 2.0, "year": 2012}, {"source": "12", "target": "85", "source_name": "graphics processor", "target_name": "artificial intelligence", "weight": 1.0, "year": 2012}, {"source": "13", "target": "43", "source_name": "augmented reality", "target_name": "virtual reality", "weight": 1.0, "year": 2012}, {"source": "13", "target": "67", "source_name": "augmented reality", "target_name": "image processing", "weight": 1.0, "year": 2012}, {"source": "14", "target": "43", "source_name": "human perception", "target_name": "virtual reality", "weight": 2.0, "year": 2012}, {"source": "14", "target": "50", "source_name": "human perception", "target_name": "user interface", "weight": 2.0, "year": 2012}, {"source": "14", "target": "60", "source_name": "human perception", "target_name": "floating point", "weight": 2.0, "year": 2012}, {"source": "14", "target": "71", "source_name": "human perception", "target_name": "embedded systems", "weight": 2.0, "year": 2012}, {"source": "14", "target": "80", "source_name": "human perception", "target_name": "virtual environments", "weight": 1.0, "year": 2012}, {"source": "14", "target": "86", "source_name": "human perception", "target_name": "graphical user interface", "weight": 1.0, "year": 2012}, {"source": "15", "target": "47", "source_name": "problem solving", "target_name": "descriptive geometry", "weight": 1.0, "year": 2012}, {"source": "16", "target": "28", "source_name": "high school", "target_name": "current account", "weight": 1.0, "year": 2012}, {"source": "16", "target": "47", "source_name": "high school", "target_name": "descriptive geometry", "weight": 1.0, "year": 2012}, {"source": "16", "target": "49", "source_name": "high school", "target_name": "graphic arts", "weight": 1.0, "year": 2012}, {"source": "16", "target": "53", "source_name": "high school", "target_name": "graphic novels", "weight": 1.0, "year": 2012}, {"source": "16", "target": "70", "source_name": "high school", "target_name": "solid modeling", "weight": 1.0, "year": 2012}, {"source": "16", "target": "74", "source_name": "high school", "target_name": "united states", "weight": 1.0, "year": 2012}, {"source": "17", "target": "85", "source_name": "probabilistic graphical models", "target_name": "artificial intelligence", "weight": 1.0, "year": 2012}, {"source": "18", "target": "36", "source_name": "fine art", "target_name": "data visualization", "weight": 1.0, "year": 2012}, {"source": "20", "target": "29", "source_name": "higher education", "target_name": "teaching reform", "weight": 1.0, "year": 2012}, {"source": "20", "target": "30", "source_name": "higher education", "target_name": "graphic designer", "weight": 1.0, "year": 2012}, {"source": "20", "target": "47", "source_name": "higher education", "target_name": "descriptive geometry", "weight": 1.0, "year": 2012}, {"source": "21", "target": "23", "source_name": "graphical interface", "target_name": "modeling language", "weight": 1.0, "year": 2012}, {"source": "21", "target": "44", "source_name": "graphical interface", "target_name": "source code", "weight": 1.0, "year": 2012}, {"source": "21", "target": "50", "source_name": "graphical interface", "target_name": "user interface", "weight": 3.0, "year": 2012}, {"source": "21", "target": "65", "source_name": "graphical interface", "target_name": "programming language", "weight": 2.0, "year": 2012}, {"source": "21", "target": "86", "source_name": "graphical interface", "target_name": "graphical user interface", "weight": 4.0, "year": 2012}, {"source": "23", "target": "43", "source_name": "modeling language", "target_name": "virtual reality", "weight": 1.0, "year": 2012}, {"source": "23", "target": "50", "source_name": "modeling language", "target_name": "user interface", "weight": 1.0, "year": 2012}, {"source": "26", "target": "53", "source_name": "comic book", "target_name": "graphic novels", "weight": 1.0, "year": 2012}, {"source": "27", "target": "53", "source_name": "media literacy", "target_name": "graphic novels", "weight": 1.0, "year": 2012}, {"source": "29", "target": "79", "source_name": "teaching reform", "target_name": "geometric modeling", "weight": 1.0, "year": 2012}, {"source": "30", "target": "36", "source_name": "graphic designer", "target_name": "data visualization", "weight": 1.0, "year": 2012}, {"source": "30", "target": "38", "source_name": "graphic designer", "target_name": "vector graphics", "weight": 1.0, "year": 2012}, {"source": "30", "target": "42", "source_name": "graphic designer", "target_name": "line graph", "weight": 1.0, "year": 2012}, {"source": "30", "target": "61", "source_name": "graphic designer", "target_name": "hong kong", "weight": 1.0, "year": 2012}, {"source": "30", "target": "66", "source_name": "graphic designer", "target_name": "traditional chinese", "weight": 1.0, "year": 2012}, {"source": "30", "target": "86", "source_name": "graphic designer", "target_name": "graphical user interface", "weight": 1.0, "year": 2012}, {"source": "31", "target": "37", "source_name": "magnetic field", "target_name": "eddy current", "weight": 1.0, "year": 2012}, {"source": "31", "target": "50", "source_name": "magnetic field", "target_name": "user interface", "weight": 1.0, "year": 2012}, {"source": "32", "target": "65", "source_name": "open source", "target_name": "programming language", "weight": 1.0, "year": 2012}, {"source": "33", "target": "36", "source_name": "parallel processing", "target_name": "data visualization", "weight": 1.0, "year": 2012}, {"source": "33", "target": "43", "source_name": "parallel processing", "target_name": "virtual reality", "weight": 2.0, "year": 2012}, {"source": "33", "target": "51", "source_name": "parallel processing", "target_name": "global illumination", "weight": 1.0, "year": 2012}, {"source": "33", "target": "52", "source_name": "parallel processing", "target_name": "graphics cards", "weight": 1.0, "year": 2012}, {"source": "33", "target": "78", "source_name": "parallel processing", "target_name": "ray tracing", "weight": 1.0, "year": 2012}, {"source": "33", "target": "83", "source_name": "parallel processing", "target_name": "graphics processing unit", "weight": 4.0, "year": 2012}, {"source": "33", "target": "86", "source_name": "parallel processing", "target_name": "graphical user interface", "weight": 1.0, "year": 2012}, {"source": "36", "target": "42", "source_name": "data visualization", "target_name": "line graph", "weight": 1.0, "year": 2012}, {"source": "36", "target": "50", "source_name": "data visualization", "target_name": "user interface", "weight": 1.0, "year": 2012}, {"source": "36", "target": "69", "source_name": "data visualization", "target_name": "mobile devices", "weight": 1.0, "year": 2012}, {"source": "36", "target": "82", "source_name": "data visualization", "target_name": "data mining", "weight": 1.0, "year": 2012}, {"source": "37", "target": "50", "source_name": "eddy current", "target_name": "user interface", "weight": 1.0, "year": 2012}, {"source": "38", "target": "50", "source_name": "vector graphics", "target_name": "user interface", "weight": 1.0, "year": 2012}, {"source": "38", "target": "62", "source_name": "vector graphics", "target_name": "pattern recognition", "weight": 1.0, "year": 2012}, {"source": "38", "target": "73", "source_name": "vector graphics", "target_name": "engineering drawing", "weight": 1.0, "year": 2012}, {"source": "38", "target": "77", "source_name": "vector graphics", "target_name": "scalable vector graphics", "weight": 15.0, "year": 2012}, {"source": "38", "target": "86", "source_name": "vector graphics", "target_name": "graphical user interface", "weight": 1.0, "year": 2012}, {"source": "39", "target": "40", "source_name": "display device", "target_name": "frame buffer", "weight": 1.0, "year": 2012}, {"source": "39", "target": "50", "source_name": "display device", "target_name": "user interface", "weight": 5.0, "year": 2012}, {"source": "39", "target": "86", "source_name": "display device", "target_name": "graphical user interface", "weight": 2.0, "year": 2012}, {"source": "42", "target": "68", "source_name": "line graph", "target_name": "digital library", "weight": 1.0, "year": 2012}, {"source": "43", "target": "47", "source_name": "virtual reality", "target_name": "descriptive geometry", "weight": 1.0, "year": 2012}, {"source": "43", "target": "50", "source_name": "virtual reality", "target_name": "user interface", "weight": 6.0, "year": 2012}, {"source": "43", "target": "51", "source_name": "virtual reality", "target_name": "global illumination", "weight": 1.0, "year": 2012}, {"source": "43", "target": "52", "source_name": "virtual reality", "target_name": "graphics cards", "weight": 1.0, "year": 2012}, {"source": "43", "target": "60", "source_name": "virtual reality", "target_name": "floating point", "weight": 2.0, "year": 2012}, {"source": "43", "target": "61", "source_name": "virtual reality", "target_name": "hong kong", "weight": 1.0, "year": 2012}, {"source": "43", "target": "64", "source_name": "virtual reality", "target_name": "scientific visualization", "weight": 3.0, "year": 2012}, {"source": "43", "target": "65", "source_name": "virtual reality", "target_name": "programming language", "weight": 1.0, "year": 2012}, {"source": "43", "target": "67", "source_name": "virtual reality", "target_name": "image processing", "weight": 2.0, "year": 2012}, {"source": "43", "target": "71", "source_name": "virtual reality", "target_name": "embedded systems", "weight": 2.0, "year": 2012}, {"source": "43", "target": "78", "source_name": "virtual reality", "target_name": "ray tracing", "weight": 1.0, "year": 2012}, {"source": "43", "target": "83", "source_name": "virtual reality", "target_name": "graphics processing unit", "weight": 2.0, "year": 2012}, {"source": "43", "target": "85", "source_name": "virtual reality", "target_name": "artificial intelligence", "weight": 1.0, "year": 2012}, {"source": "44", "target": "50", "source_name": "source code", "target_name": "user interface", "weight": 1.0, "year": 2012}, {"source": "44", "target": "65", "source_name": "source code", "target_name": "programming language", "weight": 1.0, "year": 2012}, {"source": "44", "target": "79", "source_name": "source code", "target_name": "geometric modeling", "weight": 1.0, "year": 2012}, {"source": "44", "target": "86", "source_name": "source code", "target_name": "graphical user interface", "weight": 2.0, "year": 2012}, {"source": "45", "target": "67", "source_name": "international conference", "target_name": "image processing", "weight": 2.0, "year": 2012}, {"source": "45", "target": "70", "source_name": "international conference", "target_name": "solid modeling", "weight": 2.0, "year": 2012}, {"source": "46", "target": "52", "source_name": "neural network", "target_name": "graphics cards", "weight": 1.0, "year": 2012}, {"source": "46", "target": "83", "source_name": "neural network", "target_name": "graphics processing unit", "weight": 1.0, "year": 2012}, {"source": "47", "target": "64", "source_name": "descriptive geometry", "target_name": "scientific visualization", "weight": 1.0, "year": 2012}, {"source": "47", "target": "67", "source_name": "descriptive geometry", "target_name": "image processing", "weight": 1.0, "year": 2012}, {"source": "47", "target": "73", "source_name": "descriptive geometry", "target_name": "engineering drawing", "weight": 1.0, "year": 2012}, {"source": "50", "target": "59", "source_name": "user interface", "target_name": "machine learning", "weight": 1.0, "year": 2012}, {"source": "50", "target": "60", "source_name": "user interface", "target_name": "floating point", "weight": 2.0, "year": 2012}, {"source": "50", "target": "62", "source_name": "user interface", "target_name": "pattern recognition", "weight": 1.0, "year": 2012}, {"source": "50", "target": "71", "source_name": "user interface", "target_name": "embedded systems", "weight": 3.0, "year": 2012}, {"source": "50", "target": "73", "source_name": "user interface", "target_name": "engineering drawing", "weight": 1.0, "year": 2012}, {"source": "50", "target": "77", "source_name": "user interface", "target_name": "scalable vector graphics", "weight": 1.0, "year": 2012}, {"source": "50", "target": "82", "source_name": "user interface", "target_name": "data mining", "weight": 1.0, "year": 2012}, {"source": "50", "target": "86", "source_name": "user interface", "target_name": "graphical user interface", "weight": 28.0, "year": 2012}, {"source": "51", "target": "52", "source_name": "global illumination", "target_name": "graphics cards", "weight": 1.0, "year": 2012}, {"source": "51", "target": "78", "source_name": "global illumination", "target_name": "ray tracing", "weight": 2.0, "year": 2012}, {"source": "51", "target": "79", "source_name": "global illumination", "target_name": "geometric modeling", "weight": 1.0, "year": 2012}, {"source": "52", "target": "60", "source_name": "graphics cards", "target_name": "floating point", "weight": 3.0, "year": 2012}, {"source": "52", "target": "64", "source_name": "graphics cards", "target_name": "scientific visualization", "weight": 1.0, "year": 2012}, {"source": "52", "target": "65", "source_name": "graphics cards", "target_name": "programming language", "weight": 1.0, "year": 2012}, {"source": "52", "target": "78", "source_name": "graphics cards", "target_name": "ray tracing", "weight": 1.0, "year": 2012}, {"source": "52", "target": "83", "source_name": "graphics cards", "target_name": "graphics processing unit", "weight": 7.0, "year": 2012}, {"source": "52", "target": "84", "source_name": "graphics cards", "target_name": "frame rate", "weight": 4.0, "year": 2012}, {"source": "53", "target": "72", "source_name": "graphic novels", "target_name": "public libraries", "weight": 1.0, "year": 2012}, {"source": "58", "target": "66", "source_name": "chinese character", "target_name": "traditional chinese", "weight": 1.0, "year": 2012}, {"source": "59", "target": "86", "source_name": "machine learning", "target_name": "graphical user interface", "weight": 1.0, "year": 2012}, {"source": "60", "target": "71", "source_name": "floating point", "target_name": "embedded systems", "weight": 2.0, "year": 2012}, {"source": "62", "target": "67", "source_name": "pattern recognition", "target_name": "image processing", "weight": 1.0, "year": 2012}, {"source": "62", "target": "73", "source_name": "pattern recognition", "target_name": "engineering drawing", "weight": 2.0, "year": 2012}, {"source": "63", "target": "67", "source_name": "signal processing", "target_name": "image processing", "weight": 1.0, "year": 2012}, {"source": "63", "target": "71", "source_name": "signal processing", "target_name": "embedded systems", "weight": 1.0, "year": 2012}, {"source": "64", "target": "65", "source_name": "scientific visualization", "target_name": "programming language", "weight": 1.0, "year": 2012}, {"source": "64", "target": "67", "source_name": "scientific visualization", "target_name": "image processing", "weight": 1.0, "year": 2012}, {"source": "64", "target": "83", "source_name": "scientific visualization", "target_name": "graphics processing unit", "weight": 1.0, "year": 2012}, {"source": "65", "target": "67", "source_name": "programming language", "target_name": "image processing", "weight": 1.0, "year": 2012}, {"source": "65", "target": "78", "source_name": "programming language", "target_name": "ray tracing", "weight": 1.0, "year": 2012}, {"source": "65", "target": "79", "source_name": "programming language", "target_name": "geometric modeling", "weight": 1.0, "year": 2012}, {"source": "65", "target": "83", "source_name": "programming language", "target_name": "graphics processing unit", "weight": 1.0, "year": 2012}, {"source": "65", "target": "85", "source_name": "programming language", "target_name": "artificial intelligence", "weight": 1.0, "year": 2012}, {"source": "65", "target": "86", "source_name": "programming language", "target_name": "graphical user interface", "weight": 1.0, "year": 2012}, {"source": "67", "target": "70", "source_name": "image processing", "target_name": "solid modeling", "weight": 2.0, "year": 2012}, {"source": "67", "target": "78", "source_name": "image processing", "target_name": "ray tracing", "weight": 1.0, "year": 2012}, {"source": "67", "target": "83", "source_name": "image processing", "target_name": "graphics processing unit", "weight": 2.0, "year": 2012}, {"source": "70", "target": "74", "source_name": "solid modeling", "target_name": "united states", "weight": 1.0, "year": 2012}, {"source": "78", "target": "79", "source_name": "ray tracing", "target_name": "geometric modeling", "weight": 2.0, "year": 2012}, {"source": "78", "target": "83", "source_name": "ray tracing", "target_name": "graphics processing unit", "weight": 1.0, "year": 2012}, {"source": "79", "target": "85", "source_name": "geometric modeling", "target_name": "artificial intelligence", "weight": 1.0, "year": 2012}, {"source": "80", "target": "83", "source_name": "virtual environments", "target_name": "graphics processing unit", "weight": 1.0, "year": 2012}, {"source": "80", "target": "85", "source_name": "virtual environments", "target_name": "artificial intelligence", "weight": 1.0, "year": 2012}, {"source": "82", "target": "86", "source_name": "data mining", "target_name": "graphical user interface", "weight": 1.0, "year": 2012}, {"source": "83", "target": "84", "source_name": "graphics processing unit", "target_name": "frame rate", "weight": 3.0, "year": 2012}, {"source": "85", "target": "86", "source_name": "artificial intelligence", "target_name": "graphical user interface", "weight": 1.0, "year": 2012}]}, {"2013": [{"source": "1", "target": "2", "source_name": "web page", "target_name": "visual communication", "weight": 1.0, "year": 2013}, {"source": "1", "target": "18", "source_name": "web page", "target_name": "fine art", "weight": 1.0, "year": 2013}, {"source": "1", "target": "30", "source_name": "web page", "target_name": "graphic designer", "weight": 1.0, "year": 2013}, {"source": "1", "target": "36", "source_name": "web page", "target_name": "data visualization", "weight": 1.0, "year": 2013}, {"source": "1", "target": "38", "source_name": "web page", "target_name": "vector graphics", "weight": 1.0, "year": 2013}, {"source": "1", "target": "49", "source_name": "web page", "target_name": "graphic arts", "weight": 1.0, "year": 2013}, {"source": "1", "target": "74", "source_name": "web page", "target_name": "united states", "weight": 1.0, "year": 2013}, {"source": "1", "target": "77", "source_name": "web page", "target_name": "scalable vector graphics", "weight": 1.0, "year": 2013}, {"source": "1", "target": "82", "source_name": "web page", "target_name": "data mining", "weight": 1.0, "year": 2013}, {"source": "1", "target": "84", "source_name": "web page", "target_name": "frame rate", "weight": 1.0, "year": 2013}, {"source": "2", "target": "10", "source_name": "visual communication", "target_name": "mobile phone", "weight": 1.0, "year": 2013}, {"source": "2", "target": "15", "source_name": "visual communication", "target_name": "problem solving", "weight": 1.0, "year": 2013}, {"source": "2", "target": "18", "source_name": "visual communication", "target_name": "fine art", "weight": 1.0, "year": 2013}, {"source": "2", "target": "20", "source_name": "visual communication", "target_name": "higher education", "weight": 1.0, "year": 2013}, {"source": "2", "target": "30", "source_name": "visual communication", "target_name": "graphic designer", "weight": 3.0, "year": 2013}, {"source": "2", "target": "39", "source_name": "visual communication", "target_name": "display device", "weight": 1.0, "year": 2013}, {"source": "2", "target": "49", "source_name": "visual communication", "target_name": "graphic arts", "weight": 1.0, "year": 2013}, {"source": "2", "target": "50", "source_name": "visual communication", "target_name": "user interface", "weight": 2.0, "year": 2013}, {"source": "2", "target": "58", "source_name": "visual communication", "target_name": "chinese character", "weight": 1.0, "year": 2013}, {"source": "2", "target": "74", "source_name": "visual communication", "target_name": "united states", "weight": 1.0, "year": 2013}, {"source": "2", "target": "86", "source_name": "visual communication", "target_name": "graphical user interface", "weight": 1.0, "year": 2013}, {"source": "3", "target": "63", "source_name": "statistical methods", "target_name": "signal processing", "weight": 1.0, "year": 2013}, {"source": "3", "target": "67", "source_name": "statistical methods", "target_name": "image processing", "weight": 1.0, "year": 2013}, {"source": "6", "target": "12", "source_name": "parallel computing", "target_name": "graphics processor", "weight": 2.0, "year": 2013}, {"source": "6", "target": "33", "source_name": "parallel computing", "target_name": "parallel processing", "weight": 1.0, "year": 2013}, {"source": "6", "target": "36", "source_name": "parallel computing", "target_name": "data visualization", "weight": 1.0, "year": 2013}, {"source": "6", "target": "50", "source_name": "parallel computing", "target_name": "user interface", "weight": 1.0, "year": 2013}, {"source": "6", "target": "52", "source_name": "parallel computing", "target_name": "graphics cards", "weight": 2.0, "year": 2013}, {"source": "6", "target": "60", "source_name": "parallel computing", "target_name": "floating point", "weight": 1.0, "year": 2013}, {"source": "6", "target": "64", "source_name": "parallel computing", "target_name": "scientific visualization", "weight": 1.0, "year": 2013}, {"source": "6", "target": "83", "source_name": "parallel computing", "target_name": "graphics processing unit", "weight": 3.0, "year": 2013}, {"source": "6", "target": "86", "source_name": "parallel computing", "target_name": "graphical user interface", "weight": 1.0, "year": 2013}, {"source": "7", "target": "21", "source_name": "data acquisition", "target_name": "graphical interface", "weight": 1.0, "year": 2013}, {"source": "7", "target": "50", "source_name": "data acquisition", "target_name": "user interface", "weight": 1.0, "year": 2013}, {"source": "7", "target": "63", "source_name": "data acquisition", "target_name": "signal processing", "weight": 1.0, "year": 2013}, {"source": "7", "target": "67", "source_name": "data acquisition", "target_name": "image processing", "weight": 1.0, "year": 2013}, {"source": "8", "target": "50", "source_name": "future directions", "target_name": "user interface", "weight": 1.0, "year": 2013}, {"source": "8", "target": "86", "source_name": "future directions", "target_name": "graphical user interface", "weight": 1.0, "year": 2013}, {"source": "9", "target": "21", "source_name": "object oriented", "target_name": "graphical interface", "weight": 1.0, "year": 2013}, {"source": "9", "target": "79", "source_name": "object oriented", "target_name": "geometric modeling", "weight": 1.0, "year": 2013}, {"source": "9", "target": "85", "source_name": "object oriented", "target_name": "artificial intelligence", "weight": 1.0, "year": 2013}, {"source": "10", "target": "12", "source_name": "mobile phone", "target_name": "graphics processor", "weight": 1.0, "year": 2013}, {"source": "10", "target": "39", "source_name": "mobile phone", "target_name": "display device", "weight": 1.0, "year": 2013}, {"source": "10", "target": "50", "source_name": "mobile phone", "target_name": "user interface", "weight": 1.0, "year": 2013}, {"source": "10", "target": "69", "source_name": "mobile phone", "target_name": "mobile devices", "weight": 4.0, "year": 2013}, {"source": "11", "target": "33", "source_name": "software engineering", "target_name": "parallel processing", "weight": 1.0, "year": 2013}, {"source": "11", "target": "36", "source_name": "software engineering", "target_name": "data visualization", "weight": 1.0, "year": 2013}, {"source": "11", "target": "43", "source_name": "software engineering", "target_name": "virtual reality", "weight": 1.0, "year": 2013}, {"source": "11", "target": "50", "source_name": "software engineering", "target_name": "user interface", "weight": 1.0, "year": 2013}, {"source": "11", "target": "51", "source_name": "software engineering", "target_name": "global illumination", "weight": 1.0, "year": 2013}, {"source": "11", "target": "52", "source_name": "software engineering", "target_name": "graphics cards", "weight": 2.0, "year": 2013}, {"source": "11", "target": "78", "source_name": "software engineering", "target_name": "ray tracing", "weight": 1.0, "year": 2013}, {"source": "12", "target": "33", "source_name": "graphics processor", "target_name": "parallel processing", "weight": 1.0, "year": 2013}, {"source": "12", "target": "43", "source_name": "graphics processor", "target_name": "virtual reality", "weight": 1.0, "year": 2013}, {"source": "12", "target": "52", "source_name": "graphics processor", "target_name": "graphics cards", "weight": 4.0, "year": 2013}, {"source": "12", "target": "60", "source_name": "graphics processor", "target_name": "floating point", "weight": 2.0, "year": 2013}, {"source": "12", "target": "64", "source_name": "graphics processor", "target_name": "scientific visualization", "weight": 1.0, "year": 2013}, {"source": "12", "target": "65", "source_name": "graphics processor", "target_name": "programming language", "weight": 3.0, "year": 2013}, {"source": "12", "target": "67", "source_name": "graphics processor", "target_name": "image processing", "weight": 1.0, "year": 2013}, {"source": "12", "target": "78", "source_name": "graphics processor", "target_name": "ray tracing", "weight": 1.0, "year": 2013}, {"source": "12", "target": "83", "source_name": "graphics processor", "target_name": "graphics processing unit", "weight": 2.0, "year": 2013}, {"source": "12", "target": "85", "source_name": "graphics processor", "target_name": "artificial intelligence", "weight": 1.0, "year": 2013}, {"source": "13", "target": "43", "source_name": "augmented reality", "target_name": "virtual reality", "weight": 1.0, "year": 2013}, {"source": "13", "target": "67", "source_name": "augmented reality", "target_name": "image processing", "weight": 1.0, "year": 2013}, {"source": "14", "target": "43", "source_name": "human perception", "target_name": "virtual reality", "weight": 2.0, "year": 2013}, {"source": "14", "target": "50", "source_name": "human perception", "target_name": "user interface", "weight": 2.0, "year": 2013}, {"source": "14", "target": "60", "source_name": "human perception", "target_name": "floating point", "weight": 2.0, "year": 2013}, {"source": "14", "target": "71", "source_name": "human perception", "target_name": "embedded systems", "weight": 2.0, "year": 2013}, {"source": "14", "target": "80", "source_name": "human perception", "target_name": "virtual environments", "weight": 1.0, "year": 2013}, {"source": "14", "target": "86", "source_name": "human perception", "target_name": "graphical user interface", "weight": 1.0, "year": 2013}, {"source": "15", "target": "47", "source_name": "problem solving", "target_name": "descriptive geometry", "weight": 1.0, "year": 2013}, {"source": "16", "target": "28", "source_name": "high school", "target_name": "current account", "weight": 1.0, "year": 2013}, {"source": "16", "target": "47", "source_name": "high school", "target_name": "descriptive geometry", "weight": 1.0, "year": 2013}, {"source": "16", "target": "49", "source_name": "high school", "target_name": "graphic arts", "weight": 1.0, "year": 2013}, {"source": "16", "target": "53", "source_name": "high school", "target_name": "graphic novels", "weight": 1.0, "year": 2013}, {"source": "16", "target": "70", "source_name": "high school", "target_name": "solid modeling", "weight": 1.0, "year": 2013}, {"source": "16", "target": "74", "source_name": "high school", "target_name": "united states", "weight": 1.0, "year": 2013}, {"source": "17", "target": "85", "source_name": "probabilistic graphical models", "target_name": "artificial intelligence", "weight": 1.0, "year": 2013}, {"source": "18", "target": "30", "source_name": "fine art", "target_name": "graphic designer", "weight": 1.0, "year": 2013}, {"source": "18", "target": "36", "source_name": "fine art", "target_name": "data visualization", "weight": 1.0, "year": 2013}, {"source": "18", "target": "49", "source_name": "fine art", "target_name": "graphic arts", "weight": 1.0, "year": 2013}, {"source": "18", "target": "74", "source_name": "fine art", "target_name": "united states", "weight": 1.0, "year": 2013}, {"source": "20", "target": "29", "source_name": "higher education", "target_name": "teaching reform", "weight": 1.0, "year": 2013}, {"source": "20", "target": "30", "source_name": "higher education", "target_name": "graphic designer", "weight": 1.0, "year": 2013}, {"source": "20", "target": "47", "source_name": "higher education", "target_name": "descriptive geometry", "weight": 1.0, "year": 2013}, {"source": "21", "target": "23", "source_name": "graphical interface", "target_name": "modeling language", "weight": 1.0, "year": 2013}, {"source": "21", "target": "44", "source_name": "graphical interface", "target_name": "source code", "weight": 1.0, "year": 2013}, {"source": "21", "target": "50", "source_name": "graphical interface", "target_name": "user interface", "weight": 3.0, "year": 2013}, {"source": "21", "target": "65", "source_name": "graphical interface", "target_name": "programming language", "weight": 2.0, "year": 2013}, {"source": "21", "target": "86", "source_name": "graphical interface", "target_name": "graphical user interface", "weight": 4.0, "year": 2013}, {"source": "23", "target": "43", "source_name": "modeling language", "target_name": "virtual reality", "weight": 1.0, "year": 2013}, {"source": "23", "target": "50", "source_name": "modeling language", "target_name": "user interface", "weight": 1.0, "year": 2013}, {"source": "26", "target": "53", "source_name": "comic book", "target_name": "graphic novels", "weight": 1.0, "year": 2013}, {"source": "27", "target": "53", "source_name": "media literacy", "target_name": "graphic novels", "weight": 1.0, "year": 2013}, {"source": "29", "target": "79", "source_name": "teaching reform", "target_name": "geometric modeling", "weight": 1.0, "year": 2013}, {"source": "30", "target": "36", "source_name": "graphic designer", "target_name": "data visualization", "weight": 1.0, "year": 2013}, {"source": "30", "target": "38", "source_name": "graphic designer", "target_name": "vector graphics", "weight": 1.0, "year": 2013}, {"source": "30", "target": "42", "source_name": "graphic designer", "target_name": "line graph", "weight": 1.0, "year": 2013}, {"source": "30", "target": "49", "source_name": "graphic designer", "target_name": "graphic arts", "weight": 1.0, "year": 2013}, {"source": "30", "target": "61", "source_name": "graphic designer", "target_name": "hong kong", "weight": 1.0, "year": 2013}, {"source": "30", "target": "66", "source_name": "graphic designer", "target_name": "traditional chinese", "weight": 1.0, "year": 2013}, {"source": "30", "target": "74", "source_name": "graphic designer", "target_name": "united states", "weight": 1.0, "year": 2013}, {"source": "30", "target": "86", "source_name": "graphic designer", "target_name": "graphical user interface", "weight": 1.0, "year": 2013}, {"source": "31", "target": "37", "source_name": "magnetic field", "target_name": "eddy current", "weight": 1.0, "year": 2013}, {"source": "31", "target": "50", "source_name": "magnetic field", "target_name": "user interface", "weight": 1.0, "year": 2013}, {"source": "32", "target": "50", "source_name": "open source", "target_name": "user interface", "weight": 1.0, "year": 2013}, {"source": "32", "target": "65", "source_name": "open source", "target_name": "programming language", "weight": 1.0, "year": 2013}, {"source": "32", "target": "86", "source_name": "open source", "target_name": "graphical user interface", "weight": 1.0, "year": 2013}, {"source": "33", "target": "36", "source_name": "parallel processing", "target_name": "data visualization", "weight": 1.0, "year": 2013}, {"source": "33", "target": "43", "source_name": "parallel processing", "target_name": "virtual reality", "weight": 2.0, "year": 2013}, {"source": "33", "target": "51", "source_name": "parallel processing", "target_name": "global illumination", "weight": 1.0, "year": 2013}, {"source": "33", "target": "52", "source_name": "parallel processing", "target_name": "graphics cards", "weight": 1.0, "year": 2013}, {"source": "33", "target": "78", "source_name": "parallel processing", "target_name": "ray tracing", "weight": 1.0, "year": 2013}, {"source": "33", "target": "83", "source_name": "parallel processing", "target_name": "graphics processing unit", "weight": 4.0, "year": 2013}, {"source": "33", "target": "86", "source_name": "parallel processing", "target_name": "graphical user interface", "weight": 1.0, "year": 2013}, {"source": "36", "target": "42", "source_name": "data visualization", "target_name": "line graph", "weight": 1.0, "year": 2013}, {"source": "36", "target": "50", "source_name": "data visualization", "target_name": "user interface", "weight": 1.0, "year": 2013}, {"source": "36", "target": "64", "source_name": "data visualization", "target_name": "scientific visualization", "weight": 1.0, "year": 2013}, {"source": "36", "target": "69", "source_name": "data visualization", "target_name": "mobile devices", "weight": 1.0, "year": 2013}, {"source": "36", "target": "82", "source_name": "data visualization", "target_name": "data mining", "weight": 1.0, "year": 2013}, {"source": "37", "target": "50", "source_name": "eddy current", "target_name": "user interface", "weight": 1.0, "year": 2013}, {"source": "38", "target": "50", "source_name": "vector graphics", "target_name": "user interface", "weight": 1.0, "year": 2013}, {"source": "38", "target": "62", "source_name": "vector graphics", "target_name": "pattern recognition", "weight": 1.0, "year": 2013}, {"source": "38", "target": "73", "source_name": "vector graphics", "target_name": "engineering drawing", "weight": 1.0, "year": 2013}, {"source": "38", "target": "77", "source_name": "vector graphics", "target_name": "scalable vector graphics", "weight": 15.0, "year": 2013}, {"source": "38", "target": "86", "source_name": "vector graphics", "target_name": "graphical user interface", "weight": 1.0, "year": 2013}, {"source": "39", "target": "40", "source_name": "display device", "target_name": "frame buffer", "weight": 1.0, "year": 2013}, {"source": "39", "target": "50", "source_name": "display device", "target_name": "user interface", "weight": 5.0, "year": 2013}, {"source": "39", "target": "86", "source_name": "display device", "target_name": "graphical user interface", "weight": 2.0, "year": 2013}, {"source": "42", "target": "68", "source_name": "line graph", "target_name": "digital library", "weight": 1.0, "year": 2013}, {"source": "43", "target": "47", "source_name": "virtual reality", "target_name": "descriptive geometry", "weight": 1.0, "year": 2013}, {"source": "43", "target": "50", "source_name": "virtual reality", "target_name": "user interface", "weight": 6.0, "year": 2013}, {"source": "43", "target": "51", "source_name": "virtual reality", "target_name": "global illumination", "weight": 1.0, "year": 2013}, {"source": "43", "target": "52", "source_name": "virtual reality", "target_name": "graphics cards", "weight": 1.0, "year": 2013}, {"source": "43", "target": "60", "source_name": "virtual reality", "target_name": "floating point", "weight": 2.0, "year": 2013}, {"source": "43", "target": "61", "source_name": "virtual reality", "target_name": "hong kong", "weight": 1.0, "year": 2013}, {"source": "43", "target": "64", "source_name": "virtual reality", "target_name": "scientific visualization", "weight": 3.0, "year": 2013}, {"source": "43", "target": "65", "source_name": "virtual reality", "target_name": "programming language", "weight": 1.0, "year": 2013}, {"source": "43", "target": "67", "source_name": "virtual reality", "target_name": "image processing", "weight": 2.0, "year": 2013}, {"source": "43", "target": "71", "source_name": "virtual reality", "target_name": "embedded systems", "weight": 2.0, "year": 2013}, {"source": "43", "target": "78", "source_name": "virtual reality", "target_name": "ray tracing", "weight": 1.0, "year": 2013}, {"source": "43", "target": "83", "source_name": "virtual reality", "target_name": "graphics processing unit", "weight": 2.0, "year": 2013}, {"source": "43", "target": "85", "source_name": "virtual reality", "target_name": "artificial intelligence", "weight": 1.0, "year": 2013}, {"source": "44", "target": "50", "source_name": "source code", "target_name": "user interface", "weight": 1.0, "year": 2013}, {"source": "44", "target": "65", "source_name": "source code", "target_name": "programming language", "weight": 1.0, "year": 2013}, {"source": "44", "target": "79", "source_name": "source code", "target_name": "geometric modeling", "weight": 1.0, "year": 2013}, {"source": "44", "target": "86", "source_name": "source code", "target_name": "graphical user interface", "weight": 2.0, "year": 2013}, {"source": "45", "target": "67", "source_name": "international conference", "target_name": "image processing", "weight": 2.0, "year": 2013}, {"source": "45", "target": "70", "source_name": "international conference", "target_name": "solid modeling", "weight": 2.0, "year": 2013}, {"source": "46", "target": "52", "source_name": "neural network", "target_name": "graphics cards", "weight": 1.0, "year": 2013}, {"source": "46", "target": "83", "source_name": "neural network", "target_name": "graphics processing unit", "weight": 1.0, "year": 2013}, {"source": "47", "target": "64", "source_name": "descriptive geometry", "target_name": "scientific visualization", "weight": 1.0, "year": 2013}, {"source": "47", "target": "67", "source_name": "descriptive geometry", "target_name": "image processing", "weight": 1.0, "year": 2013}, {"source": "47", "target": "73", "source_name": "descriptive geometry", "target_name": "engineering drawing", "weight": 1.0, "year": 2013}, {"source": "49", "target": "74", "source_name": "graphic arts", "target_name": "united states", "weight": 1.0, "year": 2013}, {"source": "50", "target": "59", "source_name": "user interface", "target_name": "machine learning", "weight": 1.0, "year": 2013}, {"source": "50", "target": "60", "source_name": "user interface", "target_name": "floating point", "weight": 2.0, "year": 2013}, {"source": "50", "target": "62", "source_name": "user interface", "target_name": "pattern recognition", "weight": 1.0, "year": 2013}, {"source": "50", "target": "71", "source_name": "user interface", "target_name": "embedded systems", "weight": 3.0, "year": 2013}, {"source": "50", "target": "73", "source_name": "user interface", "target_name": "engineering drawing", "weight": 1.0, "year": 2013}, {"source": "50", "target": "77", "source_name": "user interface", "target_name": "scalable vector graphics", "weight": 1.0, "year": 2013}, {"source": "50", "target": "82", "source_name": "user interface", "target_name": "data mining", "weight": 1.0, "year": 2013}, {"source": "50", "target": "86", "source_name": "user interface", "target_name": "graphical user interface", "weight": 32.0, "year": 2013}, {"source": "51", "target": "52", "source_name": "global illumination", "target_name": "graphics cards", "weight": 1.0, "year": 2013}, {"source": "51", "target": "78", "source_name": "global illumination", "target_name": "ray tracing", "weight": 2.0, "year": 2013}, {"source": "51", "target": "79", "source_name": "global illumination", "target_name": "geometric modeling", "weight": 1.0, "year": 2013}, {"source": "52", "target": "60", "source_name": "graphics cards", "target_name": "floating point", "weight": 4.0, "year": 2013}, {"source": "52", "target": "64", "source_name": "graphics cards", "target_name": "scientific visualization", "weight": 1.0, "year": 2013}, {"source": "52", "target": "65", "source_name": "graphics cards", "target_name": "programming language", "weight": 1.0, "year": 2013}, {"source": "52", "target": "78", "source_name": "graphics cards", "target_name": "ray tracing", "weight": 1.0, "year": 2013}, {"source": "52", "target": "83", "source_name": "graphics cards", "target_name": "graphics processing unit", "weight": 7.0, "year": 2013}, {"source": "52", "target": "84", "source_name": "graphics cards", "target_name": "frame rate", "weight": 4.0, "year": 2013}, {"source": "53", "target": "72", "source_name": "graphic novels", "target_name": "public libraries", "weight": 1.0, "year": 2013}, {"source": "58", "target": "66", "source_name": "chinese character", "target_name": "traditional chinese", "weight": 1.0, "year": 2013}, {"source": "59", "target": "86", "source_name": "machine learning", "target_name": "graphical user interface", "weight": 1.0, "year": 2013}, {"source": "60", "target": "71", "source_name": "floating point", "target_name": "embedded systems", "weight": 2.0, "year": 2013}, {"source": "62", "target": "67", "source_name": "pattern recognition", "target_name": "image processing", "weight": 1.0, "year": 2013}, {"source": "62", "target": "73", "source_name": "pattern recognition", "target_name": "engineering drawing", "weight": 2.0, "year": 2013}, {"source": "63", "target": "67", "source_name": "signal processing", "target_name": "image processing", "weight": 1.0, "year": 2013}, {"source": "63", "target": "71", "source_name": "signal processing", "target_name": "embedded systems", "weight": 1.0, "year": 2013}, {"source": "64", "target": "65", "source_name": "scientific visualization", "target_name": "programming language", "weight": 1.0, "year": 2013}, {"source": "64", "target": "67", "source_name": "scientific visualization", "target_name": "image processing", "weight": 1.0, "year": 2013}, {"source": "64", "target": "83", "source_name": "scientific visualization", "target_name": "graphics processing unit", "weight": 1.0, "year": 2013}, {"source": "65", "target": "67", "source_name": "programming language", "target_name": "image processing", "weight": 1.0, "year": 2013}, {"source": "65", "target": "78", "source_name": "programming language", "target_name": "ray tracing", "weight": 1.0, "year": 2013}, {"source": "65", "target": "79", "source_name": "programming language", "target_name": "geometric modeling", "weight": 1.0, "year": 2013}, {"source": "65", "target": "83", "source_name": "programming language", "target_name": "graphics processing unit", "weight": 3.0, "year": 2013}, {"source": "65", "target": "85", "source_name": "programming language", "target_name": "artificial intelligence", "weight": 1.0, "year": 2013}, {"source": "65", "target": "86", "source_name": "programming language", "target_name": "graphical user interface", "weight": 1.0, "year": 2013}, {"source": "67", "target": "70", "source_name": "image processing", "target_name": "solid modeling", "weight": 2.0, "year": 2013}, {"source": "67", "target": "78", "source_name": "image processing", "target_name": "ray tracing", "weight": 1.0, "year": 2013}, {"source": "67", "target": "83", "source_name": "image processing", "target_name": "graphics processing unit", "weight": 2.0, "year": 2013}, {"source": "70", "target": "74", "source_name": "solid modeling", "target_name": "united states", "weight": 1.0, "year": 2013}, {"source": "78", "target": "79", "source_name": "ray tracing", "target_name": "geometric modeling", "weight": 2.0, "year": 2013}, {"source": "78", "target": "83", "source_name": "ray tracing", "target_name": "graphics processing unit", "weight": 1.0, "year": 2013}, {"source": "79", "target": "85", "source_name": "geometric modeling", "target_name": "artificial intelligence", "weight": 1.0, "year": 2013}, {"source": "80", "target": "83", "source_name": "virtual environments", "target_name": "graphics processing unit", "weight": 1.0, "year": 2013}, {"source": "80", "target": "85", "source_name": "virtual environments", "target_name": "artificial intelligence", "weight": 1.0, "year": 2013}, {"source": "82", "target": "86", "source_name": "data mining", "target_name": "graphical user interface", "weight": 1.0, "year": 2013}, {"source": "83", "target": "84", "source_name": "graphics processing unit", "target_name": "frame rate", "weight": 3.0, "year": 2013}, {"source": "85", "target": "86", "source_name": "artificial intelligence", "target_name": "graphical user interface", "weight": 1.0, "year": 2013}]}, {"2014": [{"source": "1", "target": "2", "source_name": "web page", "target_name": "visual communication", "weight": 1.0, "year": 2014}, {"source": "1", "target": "18", "source_name": "web page", "target_name": "fine art", "weight": 1.0, "year": 2014}, {"source": "1", "target": "30", "source_name": "web page", "target_name": "graphic designer", "weight": 1.0, "year": 2014}, {"source": "1", "target": "36", "source_name": "web page", "target_name": "data visualization", "weight": 1.0, "year": 2014}, {"source": "1", "target": "38", "source_name": "web page", "target_name": "vector graphics", "weight": 1.0, "year": 2014}, {"source": "1", "target": "49", "source_name": "web page", "target_name": "graphic arts", "weight": 1.0, "year": 2014}, {"source": "1", "target": "74", "source_name": "web page", "target_name": "united states", "weight": 1.0, "year": 2014}, {"source": "1", "target": "77", "source_name": "web page", "target_name": "scalable vector graphics", "weight": 1.0, "year": 2014}, {"source": "1", "target": "82", "source_name": "web page", "target_name": "data mining", "weight": 1.0, "year": 2014}, {"source": "1", "target": "84", "source_name": "web page", "target_name": "frame rate", "weight": 1.0, "year": 2014}, {"source": "2", "target": "10", "source_name": "visual communication", "target_name": "mobile phone", "weight": 1.0, "year": 2014}, {"source": "2", "target": "15", "source_name": "visual communication", "target_name": "problem solving", "weight": 1.0, "year": 2014}, {"source": "2", "target": "18", "source_name": "visual communication", "target_name": "fine art", "weight": 1.0, "year": 2014}, {"source": "2", "target": "20", "source_name": "visual communication", "target_name": "higher education", "weight": 2.0, "year": 2014}, {"source": "2", "target": "30", "source_name": "visual communication", "target_name": "graphic designer", "weight": 3.0, "year": 2014}, {"source": "2", "target": "39", "source_name": "visual communication", "target_name": "display device", "weight": 1.0, "year": 2014}, {"source": "2", "target": "49", "source_name": "visual communication", "target_name": "graphic arts", "weight": 1.0, "year": 2014}, {"source": "2", "target": "50", "source_name": "visual communication", "target_name": "user interface", "weight": 2.0, "year": 2014}, {"source": "2", "target": "58", "source_name": "visual communication", "target_name": "chinese character", "weight": 1.0, "year": 2014}, {"source": "2", "target": "74", "source_name": "visual communication", "target_name": "united states", "weight": 1.0, "year": 2014}, {"source": "2", "target": "86", "source_name": "visual communication", "target_name": "graphical user interface", "weight": 1.0, "year": 2014}, {"source": "3", "target": "63", "source_name": "statistical methods", "target_name": "signal processing", "weight": 1.0, "year": 2014}, {"source": "3", "target": "67", "source_name": "statistical methods", "target_name": "image processing", "weight": 1.0, "year": 2014}, {"source": "6", "target": "12", "source_name": "parallel computing", "target_name": "graphics processor", "weight": 2.0, "year": 2014}, {"source": "6", "target": "33", "source_name": "parallel computing", "target_name": "parallel processing", "weight": 1.0, "year": 2014}, {"source": "6", "target": "36", "source_name": "parallel computing", "target_name": "data visualization", "weight": 1.0, "year": 2014}, {"source": "6", "target": "50", "source_name": "parallel computing", "target_name": "user interface", "weight": 1.0, "year": 2014}, {"source": "6", "target": "52", "source_name": "parallel computing", "target_name": "graphics cards", "weight": 2.0, "year": 2014}, {"source": "6", "target": "60", "source_name": "parallel computing", "target_name": "floating point", "weight": 1.0, "year": 2014}, {"source": "6", "target": "64", "source_name": "parallel computing", "target_name": "scientific visualization", "weight": 1.0, "year": 2014}, {"source": "6", "target": "83", "source_name": "parallel computing", "target_name": "graphics processing unit", "weight": 4.0, "year": 2014}, {"source": "6", "target": "86", "source_name": "parallel computing", "target_name": "graphical user interface", "weight": 1.0, "year": 2014}, {"source": "7", "target": "21", "source_name": "data acquisition", "target_name": "graphical interface", "weight": 1.0, "year": 2014}, {"source": "7", "target": "50", "source_name": "data acquisition", "target_name": "user interface", "weight": 2.0, "year": 2014}, {"source": "7", "target": "63", "source_name": "data acquisition", "target_name": "signal processing", "weight": 1.0, "year": 2014}, {"source": "7", "target": "67", "source_name": "data acquisition", "target_name": "image processing", "weight": 1.0, "year": 2014}, {"source": "7", "target": "86", "source_name": "data acquisition", "target_name": "graphical user interface", "weight": 1.0, "year": 2014}, {"source": "8", "target": "50", "source_name": "future directions", "target_name": "user interface", "weight": 1.0, "year": 2014}, {"source": "8", "target": "86", "source_name": "future directions", "target_name": "graphical user interface", "weight": 1.0, "year": 2014}, {"source": "9", "target": "21", "source_name": "object oriented", "target_name": "graphical interface", "weight": 1.0, "year": 2014}, {"source": "9", "target": "79", "source_name": "object oriented", "target_name": "geometric modeling", "weight": 1.0, "year": 2014}, {"source": "9", "target": "85", "source_name": "object oriented", "target_name": "artificial intelligence", "weight": 1.0, "year": 2014}, {"source": "10", "target": "12", "source_name": "mobile phone", "target_name": "graphics processor", "weight": 1.0, "year": 2014}, {"source": "10", "target": "39", "source_name": "mobile phone", "target_name": "display device", "weight": 1.0, "year": 2014}, {"source": "10", "target": "50", "source_name": "mobile phone", "target_name": "user interface", "weight": 1.0, "year": 2014}, {"source": "10", "target": "69", "source_name": "mobile phone", "target_name": "mobile devices", "weight": 4.0, "year": 2014}, {"source": "10", "target": "81", "source_name": "mobile phone", "target_name": "literature review", "weight": 1.0, "year": 2014}, {"source": "11", "target": "33", "source_name": "software engineering", "target_name": "parallel processing", "weight": 1.0, "year": 2014}, {"source": "11", "target": "36", "source_name": "software engineering", "target_name": "data visualization", "weight": 1.0, "year": 2014}, {"source": "11", "target": "43", "source_name": "software engineering", "target_name": "virtual reality", "weight": 1.0, "year": 2014}, {"source": "11", "target": "50", "source_name": "software engineering", "target_name": "user interface", "weight": 1.0, "year": 2014}, {"source": "11", "target": "51", "source_name": "software engineering", "target_name": "global illumination", "weight": 1.0, "year": 2014}, {"source": "11", "target": "52", "source_name": "software engineering", "target_name": "graphics cards", "weight": 2.0, "year": 2014}, {"source": "11", "target": "78", "source_name": "software engineering", "target_name": "ray tracing", "weight": 1.0, "year": 2014}, {"source": "12", "target": "33", "source_name": "graphics processor", "target_name": "parallel processing", "weight": 1.0, "year": 2014}, {"source": "12", "target": "43", "source_name": "graphics processor", "target_name": "virtual reality", "weight": 2.0, "year": 2014}, {"source": "12", "target": "52", "source_name": "graphics processor", "target_name": "graphics cards", "weight": 4.0, "year": 2014}, {"source": "12", "target": "60", "source_name": "graphics processor", "target_name": "floating point", "weight": 2.0, "year": 2014}, {"source": "12", "target": "64", "source_name": "graphics processor", "target_name": "scientific visualization", "weight": 1.0, "year": 2014}, {"source": "12", "target": "65", "source_name": "graphics processor", "target_name": "programming language", "weight": 3.0, "year": 2014}, {"source": "12", "target": "67", "source_name": "graphics processor", "target_name": "image processing", "weight": 2.0, "year": 2014}, {"source": "12", "target": "78", "source_name": "graphics processor", "target_name": "ray tracing", "weight": 1.0, "year": 2014}, {"source": "12", "target": "83", "source_name": "graphics processor", "target_name": "graphics processing unit", "weight": 2.0, "year": 2014}, {"source": "12", "target": "85", "source_name": "graphics processor", "target_name": "artificial intelligence", "weight": 1.0, "year": 2014}, {"source": "13", "target": "43", "source_name": "augmented reality", "target_name": "virtual reality", "weight": 1.0, "year": 2014}, {"source": "13", "target": "56", "source_name": "augmented reality", "target_name": "google trends", "weight": 1.0, "year": 2014}, {"source": "13", "target": "67", "source_name": "augmented reality", "target_name": "image processing", "weight": 1.0, "year": 2014}, {"source": "14", "target": "43", "source_name": "human perception", "target_name": "virtual reality", "weight": 2.0, "year": 2014}, {"source": "14", "target": "50", "source_name": "human perception", "target_name": "user interface", "weight": 2.0, "year": 2014}, {"source": "14", "target": "60", "source_name": "human perception", "target_name": "floating point", "weight": 2.0, "year": 2014}, {"source": "14", "target": "71", "source_name": "human perception", "target_name": "embedded systems", "weight": 2.0, "year": 2014}, {"source": "14", "target": "80", "source_name": "human perception", "target_name": "virtual environments", "weight": 1.0, "year": 2014}, {"source": "14", "target": "86", "source_name": "human perception", "target_name": "graphical user interface", "weight": 1.0, "year": 2014}, {"source": "15", "target": "47", "source_name": "problem solving", "target_name": "descriptive geometry", "weight": 1.0, "year": 2014}, {"source": "16", "target": "28", "source_name": "high school", "target_name": "current account", "weight": 1.0, "year": 2014}, {"source": "16", "target": "47", "source_name": "high school", "target_name": "descriptive geometry", "weight": 1.0, "year": 2014}, {"source": "16", "target": "49", "source_name": "high school", "target_name": "graphic arts", "weight": 1.0, "year": 2014}, {"source": "16", "target": "53", "source_name": "high school", "target_name": "graphic novels", "weight": 1.0, "year": 2014}, {"source": "16", "target": "70", "source_name": "high school", "target_name": "solid modeling", "weight": 1.0, "year": 2014}, {"source": "16", "target": "74", "source_name": "high school", "target_name": "united states", "weight": 1.0, "year": 2014}, {"source": "17", "target": "85", "source_name": "probabilistic graphical models", "target_name": "artificial intelligence", "weight": 1.0, "year": 2014}, {"source": "18", "target": "30", "source_name": "fine art", "target_name": "graphic designer", "weight": 1.0, "year": 2014}, {"source": "18", "target": "36", "source_name": "fine art", "target_name": "data visualization", "weight": 1.0, "year": 2014}, {"source": "18", "target": "49", "source_name": "fine art", "target_name": "graphic arts", "weight": 1.0, "year": 2014}, {"source": "18", "target": "74", "source_name": "fine art", "target_name": "united states", "weight": 1.0, "year": 2014}, {"source": "20", "target": "29", "source_name": "higher education", "target_name": "teaching reform", "weight": 2.0, "year": 2014}, {"source": "20", "target": "30", "source_name": "higher education", "target_name": "graphic designer", "weight": 1.0, "year": 2014}, {"source": "20", "target": "47", "source_name": "higher education", "target_name": "descriptive geometry", "weight": 1.0, "year": 2014}, {"source": "21", "target": "23", "source_name": "graphical interface", "target_name": "modeling language", "weight": 1.0, "year": 2014}, {"source": "21", "target": "44", "source_name": "graphical interface", "target_name": "source code", "weight": 1.0, "year": 2014}, {"source": "21", "target": "50", "source_name": "graphical interface", "target_name": "user interface", "weight": 3.0, "year": 2014}, {"source": "21", "target": "65", "source_name": "graphical interface", "target_name": "programming language", "weight": 2.0, "year": 2014}, {"source": "21", "target": "86", "source_name": "graphical interface", "target_name": "graphical user interface", "weight": 4.0, "year": 2014}, {"source": "23", "target": "43", "source_name": "modeling language", "target_name": "virtual reality", "weight": 1.0, "year": 2014}, {"source": "23", "target": "50", "source_name": "modeling language", "target_name": "user interface", "weight": 1.0, "year": 2014}, {"source": "26", "target": "53", "source_name": "comic book", "target_name": "graphic novels", "weight": 1.0, "year": 2014}, {"source": "27", "target": "53", "source_name": "media literacy", "target_name": "graphic novels", "weight": 1.0, "year": 2014}, {"source": "29", "target": "79", "source_name": "teaching reform", "target_name": "geometric modeling", "weight": 1.0, "year": 2014}, {"source": "30", "target": "36", "source_name": "graphic designer", "target_name": "data visualization", "weight": 1.0, "year": 2014}, {"source": "30", "target": "38", "source_name": "graphic designer", "target_name": "vector graphics", "weight": 1.0, "year": 2014}, {"source": "30", "target": "42", "source_name": "graphic designer", "target_name": "line graph", "weight": 1.0, "year": 2014}, {"source": "30", "target": "49", "source_name": "graphic designer", "target_name": "graphic arts", "weight": 1.0, "year": 2014}, {"source": "30", "target": "61", "source_name": "graphic designer", "target_name": "hong kong", "weight": 1.0, "year": 2014}, {"source": "30", "target": "66", "source_name": "graphic designer", "target_name": "traditional chinese", "weight": 1.0, "year": 2014}, {"source": "30", "target": "74", "source_name": "graphic designer", "target_name": "united states", "weight": 1.0, "year": 2014}, {"source": "30", "target": "86", "source_name": "graphic designer", "target_name": "graphical user interface", "weight": 1.0, "year": 2014}, {"source": "31", "target": "37", "source_name": "magnetic field", "target_name": "eddy current", "weight": 1.0, "year": 2014}, {"source": "31", "target": "50", "source_name": "magnetic field", "target_name": "user interface", "weight": 1.0, "year": 2014}, {"source": "32", "target": "50", "source_name": "open source", "target_name": "user interface", "weight": 1.0, "year": 2014}, {"source": "32", "target": "65", "source_name": "open source", "target_name": "programming language", "weight": 1.0, "year": 2014}, {"source": "32", "target": "86", "source_name": "open source", "target_name": "graphical user interface", "weight": 1.0, "year": 2014}, {"source": "33", "target": "36", "source_name": "parallel processing", "target_name": "data visualization", "weight": 1.0, "year": 2014}, {"source": "33", "target": "43", "source_name": "parallel processing", "target_name": "virtual reality", "weight": 2.0, "year": 2014}, {"source": "33", "target": "51", "source_name": "parallel processing", "target_name": "global illumination", "weight": 1.0, "year": 2014}, {"source": "33", "target": "52", "source_name": "parallel processing", "target_name": "graphics cards", "weight": 1.0, "year": 2014}, {"source": "33", "target": "78", "source_name": "parallel processing", "target_name": "ray tracing", "weight": 1.0, "year": 2014}, {"source": "33", "target": "83", "source_name": "parallel processing", "target_name": "graphics processing unit", "weight": 4.0, "year": 2014}, {"source": "33", "target": "86", "source_name": "parallel processing", "target_name": "graphical user interface", "weight": 1.0, "year": 2014}, {"source": "35", "target": "36", "source_name": "statistical analysis", "target_name": "data visualization", "weight": 1.0, "year": 2014}, {"source": "35", "target": "48", "source_name": "statistical analysis", "target_name": "big data", "weight": 1.0, "year": 2014}, {"source": "36", "target": "42", "source_name": "data visualization", "target_name": "line graph", "weight": 1.0, "year": 2014}, {"source": "36", "target": "48", "source_name": "data visualization", "target_name": "big data", "weight": 1.0, "year": 2014}, {"source": "36", "target": "50", "source_name": "data visualization", "target_name": "user interface", "weight": 1.0, "year": 2014}, {"source": "36", "target": "64", "source_name": "data visualization", "target_name": "scientific visualization", "weight": 1.0, "year": 2014}, {"source": "36", "target": "69", "source_name": "data visualization", "target_name": "mobile devices", "weight": 1.0, "year": 2014}, {"source": "36", "target": "82", "source_name": "data visualization", "target_name": "data mining", "weight": 1.0, "year": 2014}, {"source": "37", "target": "50", "source_name": "eddy current", "target_name": "user interface", "weight": 1.0, "year": 2014}, {"source": "38", "target": "50", "source_name": "vector graphics", "target_name": "user interface", "weight": 1.0, "year": 2014}, {"source": "38", "target": "62", "source_name": "vector graphics", "target_name": "pattern recognition", "weight": 1.0, "year": 2014}, {"source": "38", "target": "73", "source_name": "vector graphics", "target_name": "engineering drawing", "weight": 1.0, "year": 2014}, {"source": "38", "target": "77", "source_name": "vector graphics", "target_name": "scalable vector graphics", "weight": 15.0, "year": 2014}, {"source": "38", "target": "86", "source_name": "vector graphics", "target_name": "graphical user interface", "weight": 1.0, "year": 2014}, {"source": "39", "target": "40", "source_name": "display device", "target_name": "frame buffer", "weight": 1.0, "year": 2014}, {"source": "39", "target": "50", "source_name": "display device", "target_name": "user interface", "weight": 5.0, "year": 2014}, {"source": "39", "target": "86", "source_name": "display device", "target_name": "graphical user interface", "weight": 2.0, "year": 2014}, {"source": "40", "target": "84", "source_name": "frame buffer", "target_name": "frame rate", "weight": 1.0, "year": 2014}, {"source": "42", "target": "68", "source_name": "line graph", "target_name": "digital library", "weight": 1.0, "year": 2014}, {"source": "43", "target": "47", "source_name": "virtual reality", "target_name": "descriptive geometry", "weight": 1.0, "year": 2014}, {"source": "43", "target": "50", "source_name": "virtual reality", "target_name": "user interface", "weight": 6.0, "year": 2014}, {"source": "43", "target": "51", "source_name": "virtual reality", "target_name": "global illumination", "weight": 1.0, "year": 2014}, {"source": "43", "target": "52", "source_name": "virtual reality", "target_name": "graphics cards", "weight": 1.0, "year": 2014}, {"source": "43", "target": "60", "source_name": "virtual reality", "target_name": "floating point", "weight": 2.0, "year": 2014}, {"source": "43", "target": "61", "source_name": "virtual reality", "target_name": "hong kong", "weight": 1.0, "year": 2014}, {"source": "43", "target": "64", "source_name": "virtual reality", "target_name": "scientific visualization", "weight": 3.0, "year": 2014}, {"source": "43", "target": "65", "source_name": "virtual reality", "target_name": "programming language", "weight": 1.0, "year": 2014}, {"source": "43", "target": "67", "source_name": "virtual reality", "target_name": "image processing", "weight": 3.0, "year": 2014}, {"source": "43", "target": "71", "source_name": "virtual reality", "target_name": "embedded systems", "weight": 2.0, "year": 2014}, {"source": "43", "target": "78", "source_name": "virtual reality", "target_name": "ray tracing", "weight": 1.0, "year": 2014}, {"source": "43", "target": "80", "source_name": "virtual reality", "target_name": "virtual environments", "weight": 1.0, "year": 2014}, {"source": "43", "target": "83", "source_name": "virtual reality", "target_name": "graphics processing unit", "weight": 2.0, "year": 2014}, {"source": "43", "target": "85", "source_name": "virtual reality", "target_name": "artificial intelligence", "weight": 1.0, "year": 2014}, {"source": "44", "target": "50", "source_name": "source code", "target_name": "user interface", "weight": 1.0, "year": 2014}, {"source": "44", "target": "65", "source_name": "source code", "target_name": "programming language", "weight": 1.0, "year": 2014}, {"source": "44", "target": "79", "source_name": "source code", "target_name": "geometric modeling", "weight": 1.0, "year": 2014}, {"source": "44", "target": "86", "source_name": "source code", "target_name": "graphical user interface", "weight": 2.0, "year": 2014}, {"source": "45", "target": "67", "source_name": "international conference", "target_name": "image processing", "weight": 2.0, "year": 2014}, {"source": "45", "target": "70", "source_name": "international conference", "target_name": "solid modeling", "weight": 2.0, "year": 2014}, {"source": "46", "target": "52", "source_name": "neural network", "target_name": "graphics cards", "weight": 1.0, "year": 2014}, {"source": "46", "target": "83", "source_name": "neural network", "target_name": "graphics processing unit", "weight": 1.0, "year": 2014}, {"source": "47", "target": "64", "source_name": "descriptive geometry", "target_name": "scientific visualization", "weight": 1.0, "year": 2014}, {"source": "47", "target": "67", "source_name": "descriptive geometry", "target_name": "image processing", "weight": 1.0, "year": 2014}, {"source": "47", "target": "73", "source_name": "descriptive geometry", "target_name": "engineering drawing", "weight": 1.0, "year": 2014}, {"source": "49", "target": "74", "source_name": "graphic arts", "target_name": "united states", "weight": 1.0, "year": 2014}, {"source": "50", "target": "59", "source_name": "user interface", "target_name": "machine learning", "weight": 1.0, "year": 2014}, {"source": "50", "target": "60", "source_name": "user interface", "target_name": "floating point", "weight": 2.0, "year": 2014}, {"source": "50", "target": "62", "source_name": "user interface", "target_name": "pattern recognition", "weight": 1.0, "year": 2014}, {"source": "50", "target": "71", "source_name": "user interface", "target_name": "embedded systems", "weight": 3.0, "year": 2014}, {"source": "50", "target": "73", "source_name": "user interface", "target_name": "engineering drawing", "weight": 1.0, "year": 2014}, {"source": "50", "target": "77", "source_name": "user interface", "target_name": "scalable vector graphics", "weight": 1.0, "year": 2014}, {"source": "50", "target": "82", "source_name": "user interface", "target_name": "data mining", "weight": 1.0, "year": 2014}, {"source": "50", "target": "86", "source_name": "user interface", "target_name": "graphical user interface", "weight": 36.0, "year": 2014}, {"source": "51", "target": "52", "source_name": "global illumination", "target_name": "graphics cards", "weight": 1.0, "year": 2014}, {"source": "51", "target": "78", "source_name": "global illumination", "target_name": "ray tracing", "weight": 2.0, "year": 2014}, {"source": "51", "target": "79", "source_name": "global illumination", "target_name": "geometric modeling", "weight": 1.0, "year": 2014}, {"source": "52", "target": "60", "source_name": "graphics cards", "target_name": "floating point", "weight": 4.0, "year": 2014}, {"source": "52", "target": "64", "source_name": "graphics cards", "target_name": "scientific visualization", "weight": 1.0, "year": 2014}, {"source": "52", "target": "65", "source_name": "graphics cards", "target_name": "programming language", "weight": 1.0, "year": 2014}, {"source": "52", "target": "78", "source_name": "graphics cards", "target_name": "ray tracing", "weight": 1.0, "year": 2014}, {"source": "52", "target": "83", "source_name": "graphics cards", "target_name": "graphics processing unit", "weight": 7.0, "year": 2014}, {"source": "52", "target": "84", "source_name": "graphics cards", "target_name": "frame rate", "weight": 4.0, "year": 2014}, {"source": "53", "target": "72", "source_name": "graphic novels", "target_name": "public libraries", "weight": 1.0, "year": 2014}, {"source": "58", "target": "66", "source_name": "chinese character", "target_name": "traditional chinese", "weight": 1.0, "year": 2014}, {"source": "59", "target": "86", "source_name": "machine learning", "target_name": "graphical user interface", "weight": 1.0, "year": 2014}, {"source": "60", "target": "67", "source_name": "floating point", "target_name": "image processing", "weight": 1.0, "year": 2014}, {"source": "60", "target": "71", "source_name": "floating point", "target_name": "embedded systems", "weight": 2.0, "year": 2014}, {"source": "62", "target": "67", "source_name": "pattern recognition", "target_name": "image processing", "weight": 1.0, "year": 2014}, {"source": "62", "target": "73", "source_name": "pattern recognition", "target_name": "engineering drawing", "weight": 2.0, "year": 2014}, {"source": "63", "target": "67", "source_name": "signal processing", "target_name": "image processing", "weight": 1.0, "year": 2014}, {"source": "63", "target": "71", "source_name": "signal processing", "target_name": "embedded systems", "weight": 1.0, "year": 2014}, {"source": "64", "target": "65", "source_name": "scientific visualization", "target_name": "programming language", "weight": 1.0, "year": 2014}, {"source": "64", "target": "67", "source_name": "scientific visualization", "target_name": "image processing", "weight": 1.0, "year": 2014}, {"source": "64", "target": "83", "source_name": "scientific visualization", "target_name": "graphics processing unit", "weight": 1.0, "year": 2014}, {"source": "65", "target": "67", "source_name": "programming language", "target_name": "image processing", "weight": 1.0, "year": 2014}, {"source": "65", "target": "78", "source_name": "programming language", "target_name": "ray tracing", "weight": 1.0, "year": 2014}, {"source": "65", "target": "79", "source_name": "programming language", "target_name": "geometric modeling", "weight": 1.0, "year": 2014}, {"source": "65", "target": "83", "source_name": "programming language", "target_name": "graphics processing unit", "weight": 3.0, "year": 2014}, {"source": "65", "target": "85", "source_name": "programming language", "target_name": "artificial intelligence", "weight": 1.0, "year": 2014}, {"source": "65", "target": "86", "source_name": "programming language", "target_name": "graphical user interface", "weight": 1.0, "year": 2014}, {"source": "67", "target": "70", "source_name": "image processing", "target_name": "solid modeling", "weight": 2.0, "year": 2014}, {"source": "67", "target": "78", "source_name": "image processing", "target_name": "ray tracing", "weight": 1.0, "year": 2014}, {"source": "67", "target": "83", "source_name": "image processing", "target_name": "graphics processing unit", "weight": 2.0, "year": 2014}, {"source": "70", "target": "74", "source_name": "solid modeling", "target_name": "united states", "weight": 1.0, "year": 2014}, {"source": "78", "target": "79", "source_name": "ray tracing", "target_name": "geometric modeling", "weight": 2.0, "year": 2014}, {"source": "78", "target": "83", "source_name": "ray tracing", "target_name": "graphics processing unit", "weight": 1.0, "year": 2014}, {"source": "79", "target": "85", "source_name": "geometric modeling", "target_name": "artificial intelligence", "weight": 1.0, "year": 2014}, {"source": "80", "target": "83", "source_name": "virtual environments", "target_name": "graphics processing unit", "weight": 1.0, "year": 2014}, {"source": "80", "target": "85", "source_name": "virtual environments", "target_name": "artificial intelligence", "weight": 1.0, "year": 2014}, {"source": "82", "target": "86", "source_name": "data mining", "target_name": "graphical user interface", "weight": 1.0, "year": 2014}, {"source": "83", "target": "84", "source_name": "graphics processing unit", "target_name": "frame rate", "weight": 3.0, "year": 2014}, {"source": "85", "target": "86", "source_name": "artificial intelligence", "target_name": "graphical user interface", "weight": 1.0, "year": 2014}]}, {"2015": [{"source": "1", "target": "2", "source_name": "web page", "target_name": "visual communication", "weight": 1.0, "year": 2015}, {"source": "1", "target": "18", "source_name": "web page", "target_name": "fine art", "weight": 1.0, "year": 2015}, {"source": "1", "target": "30", "source_name": "web page", "target_name": "graphic designer", "weight": 1.0, "year": 2015}, {"source": "1", "target": "36", "source_name": "web page", "target_name": "data visualization", "weight": 1.0, "year": 2015}, {"source": "1", "target": "38", "source_name": "web page", "target_name": "vector graphics", "weight": 1.0, "year": 2015}, {"source": "1", "target": "49", "source_name": "web page", "target_name": "graphic arts", "weight": 1.0, "year": 2015}, {"source": "1", "target": "74", "source_name": "web page", "target_name": "united states", "weight": 1.0, "year": 2015}, {"source": "1", "target": "77", "source_name": "web page", "target_name": "scalable vector graphics", "weight": 1.0, "year": 2015}, {"source": "1", "target": "82", "source_name": "web page", "target_name": "data mining", "weight": 1.0, "year": 2015}, {"source": "1", "target": "84", "source_name": "web page", "target_name": "frame rate", "weight": 1.0, "year": 2015}, {"source": "2", "target": "10", "source_name": "visual communication", "target_name": "mobile phone", "weight": 1.0, "year": 2015}, {"source": "2", "target": "15", "source_name": "visual communication", "target_name": "problem solving", "weight": 1.0, "year": 2015}, {"source": "2", "target": "18", "source_name": "visual communication", "target_name": "fine art", "weight": 1.0, "year": 2015}, {"source": "2", "target": "20", "source_name": "visual communication", "target_name": "higher education", "weight": 2.0, "year": 2015}, {"source": "2", "target": "30", "source_name": "visual communication", "target_name": "graphic designer", "weight": 3.0, "year": 2015}, {"source": "2", "target": "39", "source_name": "visual communication", "target_name": "display device", "weight": 1.0, "year": 2015}, {"source": "2", "target": "49", "source_name": "visual communication", "target_name": "graphic arts", "weight": 1.0, "year": 2015}, {"source": "2", "target": "50", "source_name": "visual communication", "target_name": "user interface", "weight": 2.0, "year": 2015}, {"source": "2", "target": "58", "source_name": "visual communication", "target_name": "chinese character", "weight": 2.0, "year": 2015}, {"source": "2", "target": "74", "source_name": "visual communication", "target_name": "united states", "weight": 1.0, "year": 2015}, {"source": "2", "target": "86", "source_name": "visual communication", "target_name": "graphical user interface", "weight": 1.0, "year": 2015}, {"source": "3", "target": "63", "source_name": "statistical methods", "target_name": "signal processing", "weight": 1.0, "year": 2015}, {"source": "3", "target": "67", "source_name": "statistical methods", "target_name": "image processing", "weight": 1.0, "year": 2015}, {"source": "3", "target": "82", "source_name": "statistical methods", "target_name": "data mining", "weight": 1.0, "year": 2015}, {"source": "4", "target": "48", "source_name": "water resources", "target_name": "big data", "weight": 1.0, "year": 2015}, {"source": "6", "target": "12", "source_name": "parallel computing", "target_name": "graphics processor", "weight": 3.0, "year": 2015}, {"source": "6", "target": "33", "source_name": "parallel computing", "target_name": "parallel processing", "weight": 1.0, "year": 2015}, {"source": "6", "target": "36", "source_name": "parallel computing", "target_name": "data visualization", "weight": 1.0, "year": 2015}, {"source": "6", "target": "50", "source_name": "parallel computing", "target_name": "user interface", "weight": 1.0, "year": 2015}, {"source": "6", "target": "52", "source_name": "parallel computing", "target_name": "graphics cards", "weight": 2.0, "year": 2015}, {"source": "6", "target": "60", "source_name": "parallel computing", "target_name": "floating point", "weight": 1.0, "year": 2015}, {"source": "6", "target": "64", "source_name": "parallel computing", "target_name": "scientific visualization", "weight": 1.0, "year": 2015}, {"source": "6", "target": "83", "source_name": "parallel computing", "target_name": "graphics processing unit", "weight": 4.0, "year": 2015}, {"source": "6", "target": "86", "source_name": "parallel computing", "target_name": "graphical user interface", "weight": 1.0, "year": 2015}, {"source": "7", "target": "21", "source_name": "data acquisition", "target_name": "graphical interface", "weight": 1.0, "year": 2015}, {"source": "7", "target": "50", "source_name": "data acquisition", "target_name": "user interface", "weight": 3.0, "year": 2015}, {"source": "7", "target": "63", "source_name": "data acquisition", "target_name": "signal processing", "weight": 1.0, "year": 2015}, {"source": "7", "target": "67", "source_name": "data acquisition", "target_name": "image processing", "weight": 1.0, "year": 2015}, {"source": "7", "target": "86", "source_name": "data acquisition", "target_name": "graphical user interface", "weight": 2.0, "year": 2015}, {"source": "8", "target": "50", "source_name": "future directions", "target_name": "user interface", "weight": 1.0, "year": 2015}, {"source": "8", "target": "86", "source_name": "future directions", "target_name": "graphical user interface", "weight": 1.0, "year": 2015}, {"source": "9", "target": "21", "source_name": "object oriented", "target_name": "graphical interface", "weight": 1.0, "year": 2015}, {"source": "9", "target": "79", "source_name": "object oriented", "target_name": "geometric modeling", "weight": 1.0, "year": 2015}, {"source": "9", "target": "85", "source_name": "object oriented", "target_name": "artificial intelligence", "weight": 1.0, "year": 2015}, {"source": "10", "target": "12", "source_name": "mobile phone", "target_name": "graphics processor", "weight": 1.0, "year": 2015}, {"source": "10", "target": "39", "source_name": "mobile phone", "target_name": "display device", "weight": 1.0, "year": 2015}, {"source": "10", "target": "50", "source_name": "mobile phone", "target_name": "user interface", "weight": 1.0, "year": 2015}, {"source": "10", "target": "69", "source_name": "mobile phone", "target_name": "mobile devices", "weight": 4.0, "year": 2015}, {"source": "10", "target": "81", "source_name": "mobile phone", "target_name": "literature review", "weight": 1.0, "year": 2015}, {"source": "11", "target": "33", "source_name": "software engineering", "target_name": "parallel processing", "weight": 1.0, "year": 2015}, {"source": "11", "target": "36", "source_name": "software engineering", "target_name": "data visualization", "weight": 1.0, "year": 2015}, {"source": "11", "target": "43", "source_name": "software engineering", "target_name": "virtual reality", "weight": 1.0, "year": 2015}, {"source": "11", "target": "44", "source_name": "software engineering", "target_name": "source code", "weight": 1.0, "year": 2015}, {"source": "11", "target": "50", "source_name": "software engineering", "target_name": "user interface", "weight": 1.0, "year": 2015}, {"source": "11", "target": "51", "source_name": "software engineering", "target_name": "global illumination", "weight": 1.0, "year": 2015}, {"source": "11", "target": "52", "source_name": "software engineering", "target_name": "graphics cards", "weight": 2.0, "year": 2015}, {"source": "11", "target": "78", "source_name": "software engineering", "target_name": "ray tracing", "weight": 1.0, "year": 2015}, {"source": "12", "target": "33", "source_name": "graphics processor", "target_name": "parallel processing", "weight": 1.0, "year": 2015}, {"source": "12", "target": "43", "source_name": "graphics processor", "target_name": "virtual reality", "weight": 2.0, "year": 2015}, {"source": "12", "target": "52", "source_name": "graphics processor", "target_name": "graphics cards", "weight": 4.0, "year": 2015}, {"source": "12", "target": "60", "source_name": "graphics processor", "target_name": "floating point", "weight": 2.0, "year": 2015}, {"source": "12", "target": "64", "source_name": "graphics processor", "target_name": "scientific visualization", "weight": 1.0, "year": 2015}, {"source": "12", "target": "65", "source_name": "graphics processor", "target_name": "programming language", "weight": 3.0, "year": 2015}, {"source": "12", "target": "67", "source_name": "graphics processor", "target_name": "image processing", "weight": 2.0, "year": 2015}, {"source": "12", "target": "78", "source_name": "graphics processor", "target_name": "ray tracing", "weight": 1.0, "year": 2015}, {"source": "12", "target": "83", "source_name": "graphics processor", "target_name": "graphics processing unit", "weight": 3.0, "year": 2015}, {"source": "12", "target": "85", "source_name": "graphics processor", "target_name": "artificial intelligence", "weight": 1.0, "year": 2015}, {"source": "13", "target": "43", "source_name": "augmented reality", "target_name": "virtual reality", "weight": 1.0, "year": 2015}, {"source": "13", "target": "56", "source_name": "augmented reality", "target_name": "google trends", "weight": 1.0, "year": 2015}, {"source": "13", "target": "67", "source_name": "augmented reality", "target_name": "image processing", "weight": 1.0, "year": 2015}, {"source": "14", "target": "43", "source_name": "human perception", "target_name": "virtual reality", "weight": 2.0, "year": 2015}, {"source": "14", "target": "50", "source_name": "human perception", "target_name": "user interface", "weight": 2.0, "year": 2015}, {"source": "14", "target": "60", "source_name": "human perception", "target_name": "floating point", "weight": 2.0, "year": 2015}, {"source": "14", "target": "71", "source_name": "human perception", "target_name": "embedded systems", "weight": 2.0, "year": 2015}, {"source": "14", "target": "80", "source_name": "human perception", "target_name": "virtual environments", "weight": 1.0, "year": 2015}, {"source": "14", "target": "86", "source_name": "human perception", "target_name": "graphical user interface", "weight": 1.0, "year": 2015}, {"source": "15", "target": "30", "source_name": "problem solving", "target_name": "graphic designer", "weight": 1.0, "year": 2015}, {"source": "15", "target": "47", "source_name": "problem solving", "target_name": "descriptive geometry", "weight": 1.0, "year": 2015}, {"source": "16", "target": "28", "source_name": "high school", "target_name": "current account", "weight": 1.0, "year": 2015}, {"source": "16", "target": "47", "source_name": "high school", "target_name": "descriptive geometry", "weight": 1.0, "year": 2015}, {"source": "16", "target": "49", "source_name": "high school", "target_name": "graphic arts", "weight": 1.0, "year": 2015}, {"source": "16", "target": "53", "source_name": "high school", "target_name": "graphic novels", "weight": 1.0, "year": 2015}, {"source": "16", "target": "70", "source_name": "high school", "target_name": "solid modeling", "weight": 1.0, "year": 2015}, {"source": "16", "target": "74", "source_name": "high school", "target_name": "united states", "weight": 1.0, "year": 2015}, {"source": "17", "target": "85", "source_name": "probabilistic graphical models", "target_name": "artificial intelligence", "weight": 1.0, "year": 2015}, {"source": "18", "target": "30", "source_name": "fine art", "target_name": "graphic designer", "weight": 1.0, "year": 2015}, {"source": "18", "target": "36", "source_name": "fine art", "target_name": "data visualization", "weight": 1.0, "year": 2015}, {"source": "18", "target": "49", "source_name": "fine art", "target_name": "graphic arts", "weight": 1.0, "year": 2015}, {"source": "18", "target": "66", "source_name": "fine art", "target_name": "traditional chinese", "weight": 1.0, "year": 2015}, {"source": "18", "target": "74", "source_name": "fine art", "target_name": "united states", "weight": 1.0, "year": 2015}, {"source": "20", "target": "29", "source_name": "higher education", "target_name": "teaching reform", "weight": 2.0, "year": 2015}, {"source": "20", "target": "30", "source_name": "higher education", "target_name": "graphic designer", "weight": 1.0, "year": 2015}, {"source": "20", "target": "47", "source_name": "higher education", "target_name": "descriptive geometry", "weight": 1.0, "year": 2015}, {"source": "21", "target": "23", "source_name": "graphical interface", "target_name": "modeling language", "weight": 1.0, "year": 2015}, {"source": "21", "target": "44", "source_name": "graphical interface", "target_name": "source code", "weight": 1.0, "year": 2015}, {"source": "21", "target": "50", "source_name": "graphical interface", "target_name": "user interface", "weight": 4.0, "year": 2015}, {"source": "21", "target": "65", "source_name": "graphical interface", "target_name": "programming language", "weight": 2.0, "year": 2015}, {"source": "21", "target": "86", "source_name": "graphical interface", "target_name": "graphical user interface", "weight": 4.0, "year": 2015}, {"source": "22", "target": "87", "source_name": "social media", "target_name": "graphic organizer", "weight": 1.0, "year": 2015}, {"source": "23", "target": "43", "source_name": "modeling language", "target_name": "virtual reality", "weight": 1.0, "year": 2015}, {"source": "23", "target": "50", "source_name": "modeling language", "target_name": "user interface", "weight": 1.0, "year": 2015}, {"source": "24", "target": "48", "source_name": "cloud computing", "target_name": "big data", "weight": 1.0, "year": 2015}, {"source": "26", "target": "53", "source_name": "comic book", "target_name": "graphic novels", "weight": 2.0, "year": 2015}, {"source": "27", "target": "53", "source_name": "media literacy", "target_name": "graphic novels", "weight": 1.0, "year": 2015}, {"source": "29", "target": "79", "source_name": "teaching reform", "target_name": "geometric modeling", "weight": 1.0, "year": 2015}, {"source": "30", "target": "36", "source_name": "graphic designer", "target_name": "data visualization", "weight": 1.0, "year": 2015}, {"source": "30", "target": "38", "source_name": "graphic designer", "target_name": "vector graphics", "weight": 1.0, "year": 2015}, {"source": "30", "target": "42", "source_name": "graphic designer", "target_name": "line graph", "weight": 1.0, "year": 2015}, {"source": "30", "target": "49", "source_name": "graphic designer", "target_name": "graphic arts", "weight": 1.0, "year": 2015}, {"source": "30", "target": "61", "source_name": "graphic designer", "target_name": "hong kong", "weight": 1.0, "year": 2015}, {"source": "30", "target": "66", "source_name": "graphic designer", "target_name": "traditional chinese", "weight": 1.0, "year": 2015}, {"source": "30", "target": "74", "source_name": "graphic designer", "target_name": "united states", "weight": 1.0, "year": 2015}, {"source": "30", "target": "86", "source_name": "graphic designer", "target_name": "graphical user interface", "weight": 1.0, "year": 2015}, {"source": "31", "target": "37", "source_name": "magnetic field", "target_name": "eddy current", "weight": 1.0, "year": 2015}, {"source": "31", "target": "50", "source_name": "magnetic field", "target_name": "user interface", "weight": 1.0, "year": 2015}, {"source": "32", "target": "50", "source_name": "open source", "target_name": "user interface", "weight": 1.0, "year": 2015}, {"source": "32", "target": "65", "source_name": "open source", "target_name": "programming language", "weight": 1.0, "year": 2015}, {"source": "32", "target": "86", "source_name": "open source", "target_name": "graphical user interface", "weight": 1.0, "year": 2015}, {"source": "33", "target": "36", "source_name": "parallel processing", "target_name": "data visualization", "weight": 1.0, "year": 2015}, {"source": "33", "target": "43", "source_name": "parallel processing", "target_name": "virtual reality", "weight": 2.0, "year": 2015}, {"source": "33", "target": "51", "source_name": "parallel processing", "target_name": "global illumination", "weight": 1.0, "year": 2015}, {"source": "33", "target": "52", "source_name": "parallel processing", "target_name": "graphics cards", "weight": 1.0, "year": 2015}, {"source": "33", "target": "63", "source_name": "parallel processing", "target_name": "signal processing", "weight": 1.0, "year": 2015}, {"source": "33", "target": "78", "source_name": "parallel processing", "target_name": "ray tracing", "weight": 1.0, "year": 2015}, {"source": "33", "target": "83", "source_name": "parallel processing", "target_name": "graphics processing unit", "weight": 4.0, "year": 2015}, {"source": "33", "target": "86", "source_name": "parallel processing", "target_name": "graphical user interface", "weight": 1.0, "year": 2015}, {"source": "35", "target": "36", "source_name": "statistical analysis", "target_name": "data visualization", "weight": 1.0, "year": 2015}, {"source": "35", "target": "48", "source_name": "statistical analysis", "target_name": "big data", "weight": 1.0, "year": 2015}, {"source": "36", "target": "42", "source_name": "data visualization", "target_name": "line graph", "weight": 1.0, "year": 2015}, {"source": "36", "target": "48", "source_name": "data visualization", "target_name": "big data", "weight": 1.0, "year": 2015}, {"source": "36", "target": "50", "source_name": "data visualization", "target_name": "user interface", "weight": 1.0, "year": 2015}, {"source": "36", "target": "56", "source_name": "data visualization", "target_name": "google trends", "weight": 1.0, "year": 2015}, {"source": "36", "target": "64", "source_name": "data visualization", "target_name": "scientific visualization", "weight": 1.0, "year": 2015}, {"source": "36", "target": "69", "source_name": "data visualization", "target_name": "mobile devices", "weight": 1.0, "year": 2015}, {"source": "36", "target": "82", "source_name": "data visualization", "target_name": "data mining", "weight": 1.0, "year": 2015}, {"source": "37", "target": "50", "source_name": "eddy current", "target_name": "user interface", "weight": 1.0, "year": 2015}, {"source": "38", "target": "50", "source_name": "vector graphics", "target_name": "user interface", "weight": 1.0, "year": 2015}, {"source": "38", "target": "62", "source_name": "vector graphics", "target_name": "pattern recognition", "weight": 1.0, "year": 2015}, {"source": "38", "target": "73", "source_name": "vector graphics", "target_name": "engineering drawing", "weight": 1.0, "year": 2015}, {"source": "38", "target": "77", "source_name": "vector graphics", "target_name": "scalable vector graphics", "weight": 15.0, "year": 2015}, {"source": "38", "target": "86", "source_name": "vector graphics", "target_name": "graphical user interface", "weight": 1.0, "year": 2015}, {"source": "39", "target": "40", "source_name": "display device", "target_name": "frame buffer", "weight": 1.0, "year": 2015}, {"source": "39", "target": "50", "source_name": "display device", "target_name": "user interface", "weight": 5.0, "year": 2015}, {"source": "39", "target": "86", "source_name": "display device", "target_name": "graphical user interface", "weight": 2.0, "year": 2015}, {"source": "40", "target": "84", "source_name": "frame buffer", "target_name": "frame rate", "weight": 1.0, "year": 2015}, {"source": "41", "target": "87", "source_name": "efl learners", "target_name": "graphic organizer", "weight": 1.0, "year": 2015}, {"source": "42", "target": "68", "source_name": "line graph", "target_name": "digital library", "weight": 1.0, "year": 2015}, {"source": "43", "target": "47", "source_name": "virtual reality", "target_name": "descriptive geometry", "weight": 1.0, "year": 2015}, {"source": "43", "target": "50", "source_name": "virtual reality", "target_name": "user interface", "weight": 6.0, "year": 2015}, {"source": "43", "target": "51", "source_name": "virtual reality", "target_name": "global illumination", "weight": 1.0, "year": 2015}, {"source": "43", "target": "52", "source_name": "virtual reality", "target_name": "graphics cards", "weight": 1.0, "year": 2015}, {"source": "43", "target": "60", "source_name": "virtual reality", "target_name": "floating point", "weight": 2.0, "year": 2015}, {"source": "43", "target": "61", "source_name": "virtual reality", "target_name": "hong kong", "weight": 1.0, "year": 2015}, {"source": "43", "target": "64", "source_name": "virtual reality", "target_name": "scientific visualization", "weight": 3.0, "year": 2015}, {"source": "43", "target": "65", "source_name": "virtual reality", "target_name": "programming language", "weight": 1.0, "year": 2015}, {"source": "43", "target": "67", "source_name": "virtual reality", "target_name": "image processing", "weight": 3.0, "year": 2015}, {"source": "43", "target": "71", "source_name": "virtual reality", "target_name": "embedded systems", "weight": 2.0, "year": 2015}, {"source": "43", "target": "78", "source_name": "virtual reality", "target_name": "ray tracing", "weight": 1.0, "year": 2015}, {"source": "43", "target": "80", "source_name": "virtual reality", "target_name": "virtual environments", "weight": 1.0, "year": 2015}, {"source": "43", "target": "83", "source_name": "virtual reality", "target_name": "graphics processing unit", "weight": 2.0, "year": 2015}, {"source": "43", "target": "85", "source_name": "virtual reality", "target_name": "artificial intelligence", "weight": 1.0, "year": 2015}, {"source": "44", "target": "50", "source_name": "source code", "target_name": "user interface", "weight": 1.0, "year": 2015}, {"source": "44", "target": "65", "source_name": "source code", "target_name": "programming language", "weight": 1.0, "year": 2015}, {"source": "44", "target": "79", "source_name": "source code", "target_name": "geometric modeling", "weight": 1.0, "year": 2015}, {"source": "44", "target": "86", "source_name": "source code", "target_name": "graphical user interface", "weight": 2.0, "year": 2015}, {"source": "45", "target": "67", "source_name": "international conference", "target_name": "image processing", "weight": 2.0, "year": 2015}, {"source": "45", "target": "70", "source_name": "international conference", "target_name": "solid modeling", "weight": 2.0, "year": 2015}, {"source": "46", "target": "52", "source_name": "neural network", "target_name": "graphics cards", "weight": 1.0, "year": 2015}, {"source": "46", "target": "83", "source_name": "neural network", "target_name": "graphics processing unit", "weight": 1.0, "year": 2015}, {"source": "47", "target": "64", "source_name": "descriptive geometry", "target_name": "scientific visualization", "weight": 1.0, "year": 2015}, {"source": "47", "target": "67", "source_name": "descriptive geometry", "target_name": "image processing", "weight": 1.0, "year": 2015}, {"source": "47", "target": "73", "source_name": "descriptive geometry", "target_name": "engineering drawing", "weight": 1.0, "year": 2015}, {"source": "49", "target": "74", "source_name": "graphic arts", "target_name": "united states", "weight": 1.0, "year": 2015}, {"source": "50", "target": "59", "source_name": "user interface", "target_name": "machine learning", "weight": 1.0, "year": 2015}, {"source": "50", "target": "60", "source_name": "user interface", "target_name": "floating point", "weight": 2.0, "year": 2015}, {"source": "50", "target": "62", "source_name": "user interface", "target_name": "pattern recognition", "weight": 1.0, "year": 2015}, {"source": "50", "target": "71", "source_name": "user interface", "target_name": "embedded systems", "weight": 3.0, "year": 2015}, {"source": "50", "target": "73", "source_name": "user interface", "target_name": "engineering drawing", "weight": 1.0, "year": 2015}, {"source": "50", "target": "77", "source_name": "user interface", "target_name": "scalable vector graphics", "weight": 1.0, "year": 2015}, {"source": "50", "target": "82", "source_name": "user interface", "target_name": "data mining", "weight": 1.0, "year": 2015}, {"source": "50", "target": "86", "source_name": "user interface", "target_name": "graphical user interface", "weight": 40.0, "year": 2015}, {"source": "51", "target": "52", "source_name": "global illumination", "target_name": "graphics cards", "weight": 1.0, "year": 2015}, {"source": "51", "target": "78", "source_name": "global illumination", "target_name": "ray tracing", "weight": 2.0, "year": 2015}, {"source": "51", "target": "79", "source_name": "global illumination", "target_name": "geometric modeling", "weight": 1.0, "year": 2015}, {"source": "52", "target": "60", "source_name": "graphics cards", "target_name": "floating point", "weight": 4.0, "year": 2015}, {"source": "52", "target": "64", "source_name": "graphics cards", "target_name": "scientific visualization", "weight": 1.0, "year": 2015}, {"source": "52", "target": "65", "source_name": "graphics cards", "target_name": "programming language", "weight": 1.0, "year": 2015}, {"source": "52", "target": "78", "source_name": "graphics cards", "target_name": "ray tracing", "weight": 1.0, "year": 2015}, {"source": "52", "target": "83", "source_name": "graphics cards", "target_name": "graphics processing unit", "weight": 7.0, "year": 2015}, {"source": "52", "target": "84", "source_name": "graphics cards", "target_name": "frame rate", "weight": 4.0, "year": 2015}, {"source": "53", "target": "72", "source_name": "graphic novels", "target_name": "public libraries", "weight": 1.0, "year": 2015}, {"source": "58", "target": "66", "source_name": "chinese character", "target_name": "traditional chinese", "weight": 1.0, "year": 2015}, {"source": "59", "target": "82", "source_name": "machine learning", "target_name": "data mining", "weight": 1.0, "year": 2015}, {"source": "59", "target": "85", "source_name": "machine learning", "target_name": "artificial intelligence", "weight": 1.0, "year": 2015}, {"source": "59", "target": "86", "source_name": "machine learning", "target_name": "graphical user interface", "weight": 1.0, "year": 2015}, {"source": "60", "target": "67", "source_name": "floating point", "target_name": "image processing", "weight": 1.0, "year": 2015}, {"source": "60", "target": "71", "source_name": "floating point", "target_name": "embedded systems", "weight": 2.0, "year": 2015}, {"source": "62", "target": "67", "source_name": "pattern recognition", "target_name": "image processing", "weight": 1.0, "year": 2015}, {"source": "62", "target": "73", "source_name": "pattern recognition", "target_name": "engineering drawing", "weight": 2.0, "year": 2015}, {"source": "63", "target": "67", "source_name": "signal processing", "target_name": "image processing", "weight": 1.0, "year": 2015}, {"source": "63", "target": "71", "source_name": "signal processing", "target_name": "embedded systems", "weight": 1.0, "year": 2015}, {"source": "64", "target": "65", "source_name": "scientific visualization", "target_name": "programming language", "weight": 1.0, "year": 2015}, {"source": "64", "target": "67", "source_name": "scientific visualization", "target_name": "image processing", "weight": 1.0, "year": 2015}, {"source": "64", "target": "83", "source_name": "scientific visualization", "target_name": "graphics processing unit", "weight": 1.0, "year": 2015}, {"source": "65", "target": "67", "source_name": "programming language", "target_name": "image processing", "weight": 1.0, "year": 2015}, {"source": "65", "target": "78", "source_name": "programming language", "target_name": "ray tracing", "weight": 1.0, "year": 2015}, {"source": "65", "target": "79", "source_name": "programming language", "target_name": "geometric modeling", "weight": 1.0, "year": 2015}, {"source": "65", "target": "83", "source_name": "programming language", "target_name": "graphics processing unit", "weight": 3.0, "year": 2015}, {"source": "65", "target": "85", "source_name": "programming language", "target_name": "artificial intelligence", "weight": 1.0, "year": 2015}, {"source": "65", "target": "86", "source_name": "programming language", "target_name": "graphical user interface", "weight": 1.0, "year": 2015}, {"source": "67", "target": "70", "source_name": "image processing", "target_name": "solid modeling", "weight": 2.0, "year": 2015}, {"source": "67", "target": "78", "source_name": "image processing", "target_name": "ray tracing", "weight": 1.0, "year": 2015}, {"source": "67", "target": "83", "source_name": "image processing", "target_name": "graphics processing unit", "weight": 2.0, "year": 2015}, {"source": "70", "target": "74", "source_name": "solid modeling", "target_name": "united states", "weight": 1.0, "year": 2015}, {"source": "78", "target": "79", "source_name": "ray tracing", "target_name": "geometric modeling", "weight": 2.0, "year": 2015}, {"source": "78", "target": "83", "source_name": "ray tracing", "target_name": "graphics processing unit", "weight": 1.0, "year": 2015}, {"source": "79", "target": "85", "source_name": "geometric modeling", "target_name": "artificial intelligence", "weight": 1.0, "year": 2015}, {"source": "80", "target": "83", "source_name": "virtual environments", "target_name": "graphics processing unit", "weight": 1.0, "year": 2015}, {"source": "80", "target": "85", "source_name": "virtual environments", "target_name": "artificial intelligence", "weight": 1.0, "year": 2015}, {"source": "82", "target": "85", "source_name": "data mining", "target_name": "artificial intelligence", "weight": 1.0, "year": 2015}, {"source": "82", "target": "86", "source_name": "data mining", "target_name": "graphical user interface", "weight": 1.0, "year": 2015}, {"source": "83", "target": "84", "source_name": "graphics processing unit", "target_name": "frame rate", "weight": 3.0, "year": 2015}, {"source": "85", "target": "86", "source_name": "artificial intelligence", "target_name": "graphical user interface", "weight": 1.0, "year": 2015}]}, {"2016": [{"source": "1", "target": "2", "source_name": "web page", "target_name": "visual communication", "weight": 1.0, "year": 2016}, {"source": "1", "target": "18", "source_name": "web page", "target_name": "fine art", "weight": 1.0, "year": 2016}, {"source": "1", "target": "30", "source_name": "web page", "target_name": "graphic designer", "weight": 1.0, "year": 2016}, {"source": "1", "target": "36", "source_name": "web page", "target_name": "data visualization", "weight": 1.0, "year": 2016}, {"source": "1", "target": "38", "source_name": "web page", "target_name": "vector graphics", "weight": 1.0, "year": 2016}, {"source": "1", "target": "49", "source_name": "web page", "target_name": "graphic arts", "weight": 1.0, "year": 2016}, {"source": "1", "target": "74", "source_name": "web page", "target_name": "united states", "weight": 1.0, "year": 2016}, {"source": "1", "target": "77", "source_name": "web page", "target_name": "scalable vector graphics", "weight": 1.0, "year": 2016}, {"source": "1", "target": "82", "source_name": "web page", "target_name": "data mining", "weight": 1.0, "year": 2016}, {"source": "1", "target": "84", "source_name": "web page", "target_name": "frame rate", "weight": 1.0, "year": 2016}, {"source": "2", "target": "10", "source_name": "visual communication", "target_name": "mobile phone", "weight": 1.0, "year": 2016}, {"source": "2", "target": "15", "source_name": "visual communication", "target_name": "problem solving", "weight": 1.0, "year": 2016}, {"source": "2", "target": "18", "source_name": "visual communication", "target_name": "fine art", "weight": 1.0, "year": 2016}, {"source": "2", "target": "20", "source_name": "visual communication", "target_name": "higher education", "weight": 2.0, "year": 2016}, {"source": "2", "target": "30", "source_name": "visual communication", "target_name": "graphic designer", "weight": 3.0, "year": 2016}, {"source": "2", "target": "39", "source_name": "visual communication", "target_name": "display device", "weight": 1.0, "year": 2016}, {"source": "2", "target": "49", "source_name": "visual communication", "target_name": "graphic arts", "weight": 1.0, "year": 2016}, {"source": "2", "target": "50", "source_name": "visual communication", "target_name": "user interface", "weight": 2.0, "year": 2016}, {"source": "2", "target": "58", "source_name": "visual communication", "target_name": "chinese character", "weight": 2.0, "year": 2016}, {"source": "2", "target": "74", "source_name": "visual communication", "target_name": "united states", "weight": 1.0, "year": 2016}, {"source": "2", "target": "86", "source_name": "visual communication", "target_name": "graphical user interface", "weight": 1.0, "year": 2016}, {"source": "3", "target": "63", "source_name": "statistical methods", "target_name": "signal processing", "weight": 1.0, "year": 2016}, {"source": "3", "target": "67", "source_name": "statistical methods", "target_name": "image processing", "weight": 1.0, "year": 2016}, {"source": "3", "target": "82", "source_name": "statistical methods", "target_name": "data mining", "weight": 1.0, "year": 2016}, {"source": "4", "target": "48", "source_name": "water resources", "target_name": "big data", "weight": 1.0, "year": 2016}, {"source": "6", "target": "12", "source_name": "parallel computing", "target_name": "graphics processor", "weight": 3.0, "year": 2016}, {"source": "6", "target": "33", "source_name": "parallel computing", "target_name": "parallel processing", "weight": 1.0, "year": 2016}, {"source": "6", "target": "36", "source_name": "parallel computing", "target_name": "data visualization", "weight": 1.0, "year": 2016}, {"source": "6", "target": "50", "source_name": "parallel computing", "target_name": "user interface", "weight": 1.0, "year": 2016}, {"source": "6", "target": "52", "source_name": "parallel computing", "target_name": "graphics cards", "weight": 2.0, "year": 2016}, {"source": "6", "target": "60", "source_name": "parallel computing", "target_name": "floating point", "weight": 1.0, "year": 2016}, {"source": "6", "target": "64", "source_name": "parallel computing", "target_name": "scientific visualization", "weight": 1.0, "year": 2016}, {"source": "6", "target": "83", "source_name": "parallel computing", "target_name": "graphics processing unit", "weight": 4.0, "year": 2016}, {"source": "6", "target": "86", "source_name": "parallel computing", "target_name": "graphical user interface", "weight": 1.0, "year": 2016}, {"source": "7", "target": "21", "source_name": "data acquisition", "target_name": "graphical interface", "weight": 1.0, "year": 2016}, {"source": "7", "target": "50", "source_name": "data acquisition", "target_name": "user interface", "weight": 3.0, "year": 2016}, {"source": "7", "target": "63", "source_name": "data acquisition", "target_name": "signal processing", "weight": 1.0, "year": 2016}, {"source": "7", "target": "67", "source_name": "data acquisition", "target_name": "image processing", "weight": 1.0, "year": 2016}, {"source": "7", "target": "86", "source_name": "data acquisition", "target_name": "graphical user interface", "weight": 2.0, "year": 2016}, {"source": "8", "target": "50", "source_name": "future directions", "target_name": "user interface", "weight": 1.0, "year": 2016}, {"source": "8", "target": "86", "source_name": "future directions", "target_name": "graphical user interface", "weight": 1.0, "year": 2016}, {"source": "9", "target": "21", "source_name": "object oriented", "target_name": "graphical interface", "weight": 1.0, "year": 2016}, {"source": "9", "target": "79", "source_name": "object oriented", "target_name": "geometric modeling", "weight": 1.0, "year": 2016}, {"source": "9", "target": "85", "source_name": "object oriented", "target_name": "artificial intelligence", "weight": 1.0, "year": 2016}, {"source": "10", "target": "12", "source_name": "mobile phone", "target_name": "graphics processor", "weight": 1.0, "year": 2016}, {"source": "10", "target": "39", "source_name": "mobile phone", "target_name": "display device", "weight": 1.0, "year": 2016}, {"source": "10", "target": "50", "source_name": "mobile phone", "target_name": "user interface", "weight": 1.0, "year": 2016}, {"source": "10", "target": "69", "source_name": "mobile phone", "target_name": "mobile devices", "weight": 4.0, "year": 2016}, {"source": "10", "target": "81", "source_name": "mobile phone", "target_name": "literature review", "weight": 1.0, "year": 2016}, {"source": "11", "target": "33", "source_name": "software engineering", "target_name": "parallel processing", "weight": 1.0, "year": 2016}, {"source": "11", "target": "36", "source_name": "software engineering", "target_name": "data visualization", "weight": 1.0, "year": 2016}, {"source": "11", "target": "43", "source_name": "software engineering", "target_name": "virtual reality", "weight": 1.0, "year": 2016}, {"source": "11", "target": "44", "source_name": "software engineering", "target_name": "source code", "weight": 1.0, "year": 2016}, {"source": "11", "target": "50", "source_name": "software engineering", "target_name": "user interface", "weight": 1.0, "year": 2016}, {"source": "11", "target": "51", "source_name": "software engineering", "target_name": "global illumination", "weight": 1.0, "year": 2016}, {"source": "11", "target": "52", "source_name": "software engineering", "target_name": "graphics cards", "weight": 2.0, "year": 2016}, {"source": "11", "target": "78", "source_name": "software engineering", "target_name": "ray tracing", "weight": 1.0, "year": 2016}, {"source": "12", "target": "33", "source_name": "graphics processor", "target_name": "parallel processing", "weight": 1.0, "year": 2016}, {"source": "12", "target": "43", "source_name": "graphics processor", "target_name": "virtual reality", "weight": 2.0, "year": 2016}, {"source": "12", "target": "52", "source_name": "graphics processor", "target_name": "graphics cards", "weight": 4.0, "year": 2016}, {"source": "12", "target": "60", "source_name": "graphics processor", "target_name": "floating point", "weight": 2.0, "year": 2016}, {"source": "12", "target": "64", "source_name": "graphics processor", "target_name": "scientific visualization", "weight": 1.0, "year": 2016}, {"source": "12", "target": "65", "source_name": "graphics processor", "target_name": "programming language", "weight": 3.0, "year": 2016}, {"source": "12", "target": "67", "source_name": "graphics processor", "target_name": "image processing", "weight": 2.0, "year": 2016}, {"source": "12", "target": "78", "source_name": "graphics processor", "target_name": "ray tracing", "weight": 1.0, "year": 2016}, {"source": "12", "target": "83", "source_name": "graphics processor", "target_name": "graphics processing unit", "weight": 3.0, "year": 2016}, {"source": "12", "target": "85", "source_name": "graphics processor", "target_name": "artificial intelligence", "weight": 1.0, "year": 2016}, {"source": "13", "target": "43", "source_name": "augmented reality", "target_name": "virtual reality", "weight": 2.0, "year": 2016}, {"source": "13", "target": "45", "source_name": "augmented reality", "target_name": "international conference", "weight": 1.0, "year": 2016}, {"source": "13", "target": "56", "source_name": "augmented reality", "target_name": "google trends", "weight": 1.0, "year": 2016}, {"source": "13", "target": "67", "source_name": "augmented reality", "target_name": "image processing", "weight": 1.0, "year": 2016}, {"source": "14", "target": "43", "source_name": "human perception", "target_name": "virtual reality", "weight": 2.0, "year": 2016}, {"source": "14", "target": "50", "source_name": "human perception", "target_name": "user interface", "weight": 2.0, "year": 2016}, {"source": "14", "target": "60", "source_name": "human perception", "target_name": "floating point", "weight": 2.0, "year": 2016}, {"source": "14", "target": "71", "source_name": "human perception", "target_name": "embedded systems", "weight": 2.0, "year": 2016}, {"source": "14", "target": "80", "source_name": "human perception", "target_name": "virtual environments", "weight": 1.0, "year": 2016}, {"source": "14", "target": "86", "source_name": "human perception", "target_name": "graphical user interface", "weight": 1.0, "year": 2016}, {"source": "15", "target": "30", "source_name": "problem solving", "target_name": "graphic designer", "weight": 1.0, "year": 2016}, {"source": "15", "target": "47", "source_name": "problem solving", "target_name": "descriptive geometry", "weight": 1.0, "year": 2016}, {"source": "16", "target": "28", "source_name": "high school", "target_name": "current account", "weight": 1.0, "year": 2016}, {"source": "16", "target": "47", "source_name": "high school", "target_name": "descriptive geometry", "weight": 1.0, "year": 2016}, {"source": "16", "target": "49", "source_name": "high school", "target_name": "graphic arts", "weight": 1.0, "year": 2016}, {"source": "16", "target": "53", "source_name": "high school", "target_name": "graphic novels", "weight": 1.0, "year": 2016}, {"source": "16", "target": "70", "source_name": "high school", "target_name": "solid modeling", "weight": 1.0, "year": 2016}, {"source": "16", "target": "74", "source_name": "high school", "target_name": "united states", "weight": 1.0, "year": 2016}, {"source": "17", "target": "85", "source_name": "probabilistic graphical models", "target_name": "artificial intelligence", "weight": 1.0, "year": 2016}, {"source": "18", "target": "30", "source_name": "fine art", "target_name": "graphic designer", "weight": 1.0, "year": 2016}, {"source": "18", "target": "36", "source_name": "fine art", "target_name": "data visualization", "weight": 1.0, "year": 2016}, {"source": "18", "target": "49", "source_name": "fine art", "target_name": "graphic arts", "weight": 1.0, "year": 2016}, {"source": "18", "target": "66", "source_name": "fine art", "target_name": "traditional chinese", "weight": 1.0, "year": 2016}, {"source": "18", "target": "74", "source_name": "fine art", "target_name": "united states", "weight": 1.0, "year": 2016}, {"source": "20", "target": "29", "source_name": "higher education", "target_name": "teaching reform", "weight": 2.0, "year": 2016}, {"source": "20", "target": "30", "source_name": "higher education", "target_name": "graphic designer", "weight": 1.0, "year": 2016}, {"source": "20", "target": "47", "source_name": "higher education", "target_name": "descriptive geometry", "weight": 1.0, "year": 2016}, {"source": "21", "target": "23", "source_name": "graphical interface", "target_name": "modeling language", "weight": 1.0, "year": 2016}, {"source": "21", "target": "32", "source_name": "graphical interface", "target_name": "open source", "weight": 1.0, "year": 2016}, {"source": "21", "target": "44", "source_name": "graphical interface", "target_name": "source code", "weight": 1.0, "year": 2016}, {"source": "21", "target": "50", "source_name": "graphical interface", "target_name": "user interface", "weight": 4.0, "year": 2016}, {"source": "21", "target": "65", "source_name": "graphical interface", "target_name": "programming language", "weight": 2.0, "year": 2016}, {"source": "21", "target": "86", "source_name": "graphical interface", "target_name": "graphical user interface", "weight": 4.0, "year": 2016}, {"source": "22", "target": "35", "source_name": "social media", "target_name": "statistical analysis", "weight": 1.0, "year": 2016}, {"source": "22", "target": "87", "source_name": "social media", "target_name": "graphic organizer", "weight": 1.0, "year": 2016}, {"source": "23", "target": "43", "source_name": "modeling language", "target_name": "virtual reality", "weight": 1.0, "year": 2016}, {"source": "23", "target": "50", "source_name": "modeling language", "target_name": "user interface", "weight": 1.0, "year": 2016}, {"source": "24", "target": "48", "source_name": "cloud computing", "target_name": "big data", "weight": 1.0, "year": 2016}, {"source": "26", "target": "53", "source_name": "comic book", "target_name": "graphic novels", "weight": 4.0, "year": 2016}, {"source": "27", "target": "53", "source_name": "media literacy", "target_name": "graphic novels", "weight": 1.0, "year": 2016}, {"source": "29", "target": "79", "source_name": "teaching reform", "target_name": "geometric modeling", "weight": 1.0, "year": 2016}, {"source": "30", "target": "36", "source_name": "graphic designer", "target_name": "data visualization", "weight": 1.0, "year": 2016}, {"source": "30", "target": "38", "source_name": "graphic designer", "target_name": "vector graphics", "weight": 1.0, "year": 2016}, {"source": "30", "target": "42", "source_name": "graphic designer", "target_name": "line graph", "weight": 1.0, "year": 2016}, {"source": "30", "target": "49", "source_name": "graphic designer", "target_name": "graphic arts", "weight": 1.0, "year": 2016}, {"source": "30", "target": "61", "source_name": "graphic designer", "target_name": "hong kong", "weight": 1.0, "year": 2016}, {"source": "30", "target": "66", "source_name": "graphic designer", "target_name": "traditional chinese", "weight": 1.0, "year": 2016}, {"source": "30", "target": "74", "source_name": "graphic designer", "target_name": "united states", "weight": 1.0, "year": 2016}, {"source": "30", "target": "86", "source_name": "graphic designer", "target_name": "graphical user interface", "weight": 1.0, "year": 2016}, {"source": "31", "target": "37", "source_name": "magnetic field", "target_name": "eddy current", "weight": 1.0, "year": 2016}, {"source": "31", "target": "50", "source_name": "magnetic field", "target_name": "user interface", "weight": 1.0, "year": 2016}, {"source": "32", "target": "50", "source_name": "open source", "target_name": "user interface", "weight": 1.0, "year": 2016}, {"source": "32", "target": "65", "source_name": "open source", "target_name": "programming language", "weight": 1.0, "year": 2016}, {"source": "32", "target": "86", "source_name": "open source", "target_name": "graphical user interface", "weight": 1.0, "year": 2016}, {"source": "33", "target": "36", "source_name": "parallel processing", "target_name": "data visualization", "weight": 1.0, "year": 2016}, {"source": "33", "target": "43", "source_name": "parallel processing", "target_name": "virtual reality", "weight": 2.0, "year": 2016}, {"source": "33", "target": "51", "source_name": "parallel processing", "target_name": "global illumination", "weight": 1.0, "year": 2016}, {"source": "33", "target": "52", "source_name": "parallel processing", "target_name": "graphics cards", "weight": 1.0, "year": 2016}, {"source": "33", "target": "63", "source_name": "parallel processing", "target_name": "signal processing", "weight": 1.0, "year": 2016}, {"source": "33", "target": "78", "source_name": "parallel processing", "target_name": "ray tracing", "weight": 1.0, "year": 2016}, {"source": "33", "target": "83", "source_name": "parallel processing", "target_name": "graphics processing unit", "weight": 4.0, "year": 2016}, {"source": "33", "target": "86", "source_name": "parallel processing", "target_name": "graphical user interface", "weight": 1.0, "year": 2016}, {"source": "34", "target": "87", "source_name": "reading comprehension", "target_name": "graphic organizer", "weight": 1.0, "year": 2016}, {"source": "35", "target": "36", "source_name": "statistical analysis", "target_name": "data visualization", "weight": 1.0, "year": 2016}, {"source": "35", "target": "48", "source_name": "statistical analysis", "target_name": "big data", "weight": 1.0, "year": 2016}, {"source": "36", "target": "42", "source_name": "data visualization", "target_name": "line graph", "weight": 1.0, "year": 2016}, {"source": "36", "target": "48", "source_name": "data visualization", "target_name": "big data", "weight": 2.0, "year": 2016}, {"source": "36", "target": "50", "source_name": "data visualization", "target_name": "user interface", "weight": 1.0, "year": 2016}, {"source": "36", "target": "56", "source_name": "data visualization", "target_name": "google trends", "weight": 1.0, "year": 2016}, {"source": "36", "target": "64", "source_name": "data visualization", "target_name": "scientific visualization", "weight": 1.0, "year": 2016}, {"source": "36", "target": "69", "source_name": "data visualization", "target_name": "mobile devices", "weight": 1.0, "year": 2016}, {"source": "36", "target": "82", "source_name": "data visualization", "target_name": "data mining", "weight": 1.0, "year": 2016}, {"source": "37", "target": "50", "source_name": "eddy current", "target_name": "user interface", "weight": 1.0, "year": 2016}, {"source": "38", "target": "50", "source_name": "vector graphics", "target_name": "user interface", "weight": 1.0, "year": 2016}, {"source": "38", "target": "62", "source_name": "vector graphics", "target_name": "pattern recognition", "weight": 1.0, "year": 2016}, {"source": "38", "target": "73", "source_name": "vector graphics", "target_name": "engineering drawing", "weight": 1.0, "year": 2016}, {"source": "38", "target": "77", "source_name": "vector graphics", "target_name": "scalable vector graphics", "weight": 15.0, "year": 2016}, {"source": "38", "target": "86", "source_name": "vector graphics", "target_name": "graphical user interface", "weight": 1.0, "year": 2016}, {"source": "39", "target": "40", "source_name": "display device", "target_name": "frame buffer", "weight": 1.0, "year": 2016}, {"source": "39", "target": "50", "source_name": "display device", "target_name": "user interface", "weight": 5.0, "year": 2016}, {"source": "39", "target": "86", "source_name": "display device", "target_name": "graphical user interface", "weight": 2.0, "year": 2016}, {"source": "40", "target": "84", "source_name": "frame buffer", "target_name": "frame rate", "weight": 1.0, "year": 2016}, {"source": "41", "target": "87", "source_name": "efl learners", "target_name": "graphic organizer", "weight": 1.0, "year": 2016}, {"source": "42", "target": "68", "source_name": "line graph", "target_name": "digital library", "weight": 1.0, "year": 2016}, {"source": "43", "target": "45", "source_name": "virtual reality", "target_name": "international conference", "weight": 1.0, "year": 2016}, {"source": "43", "target": "47", "source_name": "virtual reality", "target_name": "descriptive geometry", "weight": 1.0, "year": 2016}, {"source": "43", "target": "50", "source_name": "virtual reality", "target_name": "user interface", "weight": 7.0, "year": 2016}, {"source": "43", "target": "51", "source_name": "virtual reality", "target_name": "global illumination", "weight": 1.0, "year": 2016}, {"source": "43", "target": "52", "source_name": "virtual reality", "target_name": "graphics cards", "weight": 1.0, "year": 2016}, {"source": "43", "target": "60", "source_name": "virtual reality", "target_name": "floating point", "weight": 2.0, "year": 2016}, {"source": "43", "target": "61", "source_name": "virtual reality", "target_name": "hong kong", "weight": 1.0, "year": 2016}, {"source": "43", "target": "64", "source_name": "virtual reality", "target_name": "scientific visualization", "weight": 3.0, "year": 2016}, {"source": "43", "target": "65", "source_name": "virtual reality", "target_name": "programming language", "weight": 1.0, "year": 2016}, {"source": "43", "target": "67", "source_name": "virtual reality", "target_name": "image processing", "weight": 3.0, "year": 2016}, {"source": "43", "target": "71", "source_name": "virtual reality", "target_name": "embedded systems", "weight": 2.0, "year": 2016}, {"source": "43", "target": "78", "source_name": "virtual reality", "target_name": "ray tracing", "weight": 2.0, "year": 2016}, {"source": "43", "target": "80", "source_name": "virtual reality", "target_name": "virtual environments", "weight": 1.0, "year": 2016}, {"source": "43", "target": "83", "source_name": "virtual reality", "target_name": "graphics processing unit", "weight": 2.0, "year": 2016}, {"source": "43", "target": "85", "source_name": "virtual reality", "target_name": "artificial intelligence", "weight": 1.0, "year": 2016}, {"source": "43", "target": "86", "source_name": "virtual reality", "target_name": "graphical user interface", "weight": 1.0, "year": 2016}, {"source": "44", "target": "50", "source_name": "source code", "target_name": "user interface", "weight": 1.0, "year": 2016}, {"source": "44", "target": "65", "source_name": "source code", "target_name": "programming language", "weight": 1.0, "year": 2016}, {"source": "44", "target": "79", "source_name": "source code", "target_name": "geometric modeling", "weight": 1.0, "year": 2016}, {"source": "44", "target": "86", "source_name": "source code", "target_name": "graphical user interface", "weight": 2.0, "year": 2016}, {"source": "45", "target": "67", "source_name": "international conference", "target_name": "image processing", "weight": 2.0, "year": 2016}, {"source": "45", "target": "70", "source_name": "international conference", "target_name": "solid modeling", "weight": 2.0, "year": 2016}, {"source": "45", "target": "75", "source_name": "international conference", "target_name": "sustainable development", "weight": 1.0, "year": 2016}, {"source": "45", "target": "82", "source_name": "international conference", "target_name": "data mining", "weight": 1.0, "year": 2016}, {"source": "46", "target": "52", "source_name": "neural network", "target_name": "graphics cards", "weight": 1.0, "year": 2016}, {"source": "46", "target": "59", "source_name": "neural network", "target_name": "machine learning", "weight": 1.0, "year": 2016}, {"source": "46", "target": "83", "source_name": "neural network", "target_name": "graphics processing unit", "weight": 1.0, "year": 2016}, {"source": "47", "target": "64", "source_name": "descriptive geometry", "target_name": "scientific visualization", "weight": 1.0, "year": 2016}, {"source": "47", "target": "67", "source_name": "descriptive geometry", "target_name": "image processing", "weight": 1.0, "year": 2016}, {"source": "47", "target": "73", "source_name": "descriptive geometry", "target_name": "engineering drawing", "weight": 1.0, "year": 2016}, {"source": "49", "target": "74", "source_name": "graphic arts", "target_name": "united states", "weight": 1.0, "year": 2016}, {"source": "50", "target": "59", "source_name": "user interface", "target_name": "machine learning", "weight": 1.0, "year": 2016}, {"source": "50", "target": "60", "source_name": "user interface", "target_name": "floating point", "weight": 2.0, "year": 2016}, {"source": "50", "target": "62", "source_name": "user interface", "target_name": "pattern recognition", "weight": 1.0, "year": 2016}, {"source": "50", "target": "71", "source_name": "user interface", "target_name": "embedded systems", "weight": 3.0, "year": 2016}, {"source": "50", "target": "73", "source_name": "user interface", "target_name": "engineering drawing", "weight": 1.0, "year": 2016}, {"source": "50", "target": "77", "source_name": "user interface", "target_name": "scalable vector graphics", "weight": 1.0, "year": 2016}, {"source": "50", "target": "78", "source_name": "user interface", "target_name": "ray tracing", "weight": 1.0, "year": 2016}, {"source": "50", "target": "82", "source_name": "user interface", "target_name": "data mining", "weight": 1.0, "year": 2016}, {"source": "50", "target": "86", "source_name": "user interface", "target_name": "graphical user interface", "weight": 45.0, "year": 2016}, {"source": "51", "target": "52", "source_name": "global illumination", "target_name": "graphics cards", "weight": 1.0, "year": 2016}, {"source": "51", "target": "78", "source_name": "global illumination", "target_name": "ray tracing", "weight": 2.0, "year": 2016}, {"source": "51", "target": "79", "source_name": "global illumination", "target_name": "geometric modeling", "weight": 1.0, "year": 2016}, {"source": "52", "target": "60", "source_name": "graphics cards", "target_name": "floating point", "weight": 4.0, "year": 2016}, {"source": "52", "target": "64", "source_name": "graphics cards", "target_name": "scientific visualization", "weight": 1.0, "year": 2016}, {"source": "52", "target": "65", "source_name": "graphics cards", "target_name": "programming language", "weight": 1.0, "year": 2016}, {"source": "52", "target": "78", "source_name": "graphics cards", "target_name": "ray tracing", "weight": 1.0, "year": 2016}, {"source": "52", "target": "83", "source_name": "graphics cards", "target_name": "graphics processing unit", "weight": 7.0, "year": 2016}, {"source": "52", "target": "84", "source_name": "graphics cards", "target_name": "frame rate", "weight": 4.0, "year": 2016}, {"source": "53", "target": "72", "source_name": "graphic novels", "target_name": "public libraries", "weight": 1.0, "year": 2016}, {"source": "58", "target": "66", "source_name": "chinese character", "target_name": "traditional chinese", "weight": 1.0, "year": 2016}, {"source": "59", "target": "82", "source_name": "machine learning", "target_name": "data mining", "weight": 1.0, "year": 2016}, {"source": "59", "target": "85", "source_name": "machine learning", "target_name": "artificial intelligence", "weight": 1.0, "year": 2016}, {"source": "59", "target": "86", "source_name": "machine learning", "target_name": "graphical user interface", "weight": 1.0, "year": 2016}, {"source": "60", "target": "67", "source_name": "floating point", "target_name": "image processing", "weight": 1.0, "year": 2016}, {"source": "60", "target": "71", "source_name": "floating point", "target_name": "embedded systems", "weight": 2.0, "year": 2016}, {"source": "62", "target": "67", "source_name": "pattern recognition", "target_name": "image processing", "weight": 2.0, "year": 2016}, {"source": "62", "target": "73", "source_name": "pattern recognition", "target_name": "engineering drawing", "weight": 2.0, "year": 2016}, {"source": "63", "target": "67", "source_name": "signal processing", "target_name": "image processing", "weight": 1.0, "year": 2016}, {"source": "63", "target": "71", "source_name": "signal processing", "target_name": "embedded systems", "weight": 1.0, "year": 2016}, {"source": "63", "target": "83", "source_name": "signal processing", "target_name": "graphics processing unit", "weight": 1.0, "year": 2016}, {"source": "64", "target": "65", "source_name": "scientific visualization", "target_name": "programming language", "weight": 1.0, "year": 2016}, {"source": "64", "target": "67", "source_name": "scientific visualization", "target_name": "image processing", "weight": 1.0, "year": 2016}, {"source": "64", "target": "83", "source_name": "scientific visualization", "target_name": "graphics processing unit", "weight": 1.0, "year": 2016}, {"source": "65", "target": "67", "source_name": "programming language", "target_name": "image processing", "weight": 1.0, "year": 2016}, {"source": "65", "target": "78", "source_name": "programming language", "target_name": "ray tracing", "weight": 1.0, "year": 2016}, {"source": "65", "target": "79", "source_name": "programming language", "target_name": "geometric modeling", "weight": 1.0, "year": 2016}, {"source": "65", "target": "83", "source_name": "programming language", "target_name": "graphics processing unit", "weight": 3.0, "year": 2016}, {"source": "65", "target": "85", "source_name": "programming language", "target_name": "artificial intelligence", "weight": 1.0, "year": 2016}, {"source": "65", "target": "86", "source_name": "programming language", "target_name": "graphical user interface", "weight": 1.0, "year": 2016}, {"source": "67", "target": "70", "source_name": "image processing", "target_name": "solid modeling", "weight": 2.0, "year": 2016}, {"source": "67", "target": "78", "source_name": "image processing", "target_name": "ray tracing", "weight": 1.0, "year": 2016}, {"source": "67", "target": "83", "source_name": "image processing", "target_name": "graphics processing unit", "weight": 2.0, "year": 2016}, {"source": "68", "target": "74", "source_name": "digital library", "target_name": "united states", "weight": 1.0, "year": 2016}, {"source": "70", "target": "74", "source_name": "solid modeling", "target_name": "united states", "weight": 1.0, "year": 2016}, {"source": "75", "target": "82", "source_name": "sustainable development", "target_name": "data mining", "weight": 1.0, "year": 2016}, {"source": "78", "target": "79", "source_name": "ray tracing", "target_name": "geometric modeling", "weight": 2.0, "year": 2016}, {"source": "78", "target": "83", "source_name": "ray tracing", "target_name": "graphics processing unit", "weight": 1.0, "year": 2016}, {"source": "78", "target": "86", "source_name": "ray tracing", "target_name": "graphical user interface", "weight": 1.0, "year": 2016}, {"source": "79", "target": "85", "source_name": "geometric modeling", "target_name": "artificial intelligence", "weight": 1.0, "year": 2016}, {"source": "80", "target": "83", "source_name": "virtual environments", "target_name": "graphics processing unit", "weight": 1.0, "year": 2016}, {"source": "80", "target": "85", "source_name": "virtual environments", "target_name": "artificial intelligence", "weight": 1.0, "year": 2016}, {"source": "82", "target": "85", "source_name": "data mining", "target_name": "artificial intelligence", "weight": 1.0, "year": 2016}, {"source": "82", "target": "86", "source_name": "data mining", "target_name": "graphical user interface", "weight": 1.0, "year": 2016}, {"source": "83", "target": "84", "source_name": "graphics processing unit", "target_name": "frame rate", "weight": 3.0, "year": 2016}, {"source": "85", "target": "86", "source_name": "artificial intelligence", "target_name": "graphical user interface", "weight": 1.0, "year": 2016}]}, {"2017": [{"source": "0", "target": "4", "source_name": "annual rainfall", "target_name": "water resources", "weight": 2.0, "year": 2017}, {"source": "0", "target": "75", "source_name": "annual rainfall", "target_name": "sustainable development", "weight": 1.0, "year": 2017}, {"source": "1", "target": "2", "source_name": "web page", "target_name": "visual communication", "weight": 1.0, "year": 2017}, {"source": "1", "target": "18", "source_name": "web page", "target_name": "fine art", "weight": 1.0, "year": 2017}, {"source": "1", "target": "30", "source_name": "web page", "target_name": "graphic designer", "weight": 1.0, "year": 2017}, {"source": "1", "target": "36", "source_name": "web page", "target_name": "data visualization", "weight": 1.0, "year": 2017}, {"source": "1", "target": "38", "source_name": "web page", "target_name": "vector graphics", "weight": 1.0, "year": 2017}, {"source": "1", "target": "49", "source_name": "web page", "target_name": "graphic arts", "weight": 1.0, "year": 2017}, {"source": "1", "target": "74", "source_name": "web page", "target_name": "united states", "weight": 1.0, "year": 2017}, {"source": "1", "target": "77", "source_name": "web page", "target_name": "scalable vector graphics", "weight": 1.0, "year": 2017}, {"source": "1", "target": "82", "source_name": "web page", "target_name": "data mining", "weight": 1.0, "year": 2017}, {"source": "1", "target": "84", "source_name": "web page", "target_name": "frame rate", "weight": 1.0, "year": 2017}, {"source": "2", "target": "10", "source_name": "visual communication", "target_name": "mobile phone", "weight": 1.0, "year": 2017}, {"source": "2", "target": "15", "source_name": "visual communication", "target_name": "problem solving", "weight": 1.0, "year": 2017}, {"source": "2", "target": "18", "source_name": "visual communication", "target_name": "fine art", "weight": 1.0, "year": 2017}, {"source": "2", "target": "20", "source_name": "visual communication", "target_name": "higher education", "weight": 2.0, "year": 2017}, {"source": "2", "target": "30", "source_name": "visual communication", "target_name": "graphic designer", "weight": 3.0, "year": 2017}, {"source": "2", "target": "39", "source_name": "visual communication", "target_name": "display device", "weight": 1.0, "year": 2017}, {"source": "2", "target": "49", "source_name": "visual communication", "target_name": "graphic arts", "weight": 1.0, "year": 2017}, {"source": "2", "target": "50", "source_name": "visual communication", "target_name": "user interface", "weight": 2.0, "year": 2017}, {"source": "2", "target": "58", "source_name": "visual communication", "target_name": "chinese character", "weight": 2.0, "year": 2017}, {"source": "2", "target": "74", "source_name": "visual communication", "target_name": "united states", "weight": 1.0, "year": 2017}, {"source": "2", "target": "86", "source_name": "visual communication", "target_name": "graphical user interface", "weight": 1.0, "year": 2017}, {"source": "3", "target": "63", "source_name": "statistical methods", "target_name": "signal processing", "weight": 1.0, "year": 2017}, {"source": "3", "target": "67", "source_name": "statistical methods", "target_name": "image processing", "weight": 1.0, "year": 2017}, {"source": "3", "target": "82", "source_name": "statistical methods", "target_name": "data mining", "weight": 1.0, "year": 2017}, {"source": "4", "target": "48", "source_name": "water resources", "target_name": "big data", "weight": 1.0, "year": 2017}, {"source": "4", "target": "75", "source_name": "water resources", "target_name": "sustainable development", "weight": 1.0, "year": 2017}, {"source": "6", "target": "12", "source_name": "parallel computing", "target_name": "graphics processor", "weight": 3.0, "year": 2017}, {"source": "6", "target": "33", "source_name": "parallel computing", "target_name": "parallel processing", "weight": 1.0, "year": 2017}, {"source": "6", "target": "36", "source_name": "parallel computing", "target_name": "data visualization", "weight": 1.0, "year": 2017}, {"source": "6", "target": "50", "source_name": "parallel computing", "target_name": "user interface", "weight": 1.0, "year": 2017}, {"source": "6", "target": "52", "source_name": "parallel computing", "target_name": "graphics cards", "weight": 2.0, "year": 2017}, {"source": "6", "target": "60", "source_name": "parallel computing", "target_name": "floating point", "weight": 1.0, "year": 2017}, {"source": "6", "target": "64", "source_name": "parallel computing", "target_name": "scientific visualization", "weight": 1.0, "year": 2017}, {"source": "6", "target": "83", "source_name": "parallel computing", "target_name": "graphics processing unit", "weight": 4.0, "year": 2017}, {"source": "6", "target": "86", "source_name": "parallel computing", "target_name": "graphical user interface", "weight": 1.0, "year": 2017}, {"source": "7", "target": "21", "source_name": "data acquisition", "target_name": "graphical interface", "weight": 1.0, "year": 2017}, {"source": "7", "target": "50", "source_name": "data acquisition", "target_name": "user interface", "weight": 3.0, "year": 2017}, {"source": "7", "target": "63", "source_name": "data acquisition", "target_name": "signal processing", "weight": 1.0, "year": 2017}, {"source": "7", "target": "65", "source_name": "data acquisition", "target_name": "programming language", "weight": 1.0, "year": 2017}, {"source": "7", "target": "67", "source_name": "data acquisition", "target_name": "image processing", "weight": 1.0, "year": 2017}, {"source": "7", "target": "86", "source_name": "data acquisition", "target_name": "graphical user interface", "weight": 2.0, "year": 2017}, {"source": "8", "target": "50", "source_name": "future directions", "target_name": "user interface", "weight": 1.0, "year": 2017}, {"source": "8", "target": "86", "source_name": "future directions", "target_name": "graphical user interface", "weight": 1.0, "year": 2017}, {"source": "9", "target": "21", "source_name": "object oriented", "target_name": "graphical interface", "weight": 1.0, "year": 2017}, {"source": "9", "target": "79", "source_name": "object oriented", "target_name": "geometric modeling", "weight": 1.0, "year": 2017}, {"source": "9", "target": "85", "source_name": "object oriented", "target_name": "artificial intelligence", "weight": 1.0, "year": 2017}, {"source": "10", "target": "12", "source_name": "mobile phone", "target_name": "graphics processor", "weight": 1.0, "year": 2017}, {"source": "10", "target": "21", "source_name": "mobile phone", "target_name": "graphical interface", "weight": 1.0, "year": 2017}, {"source": "10", "target": "39", "source_name": "mobile phone", "target_name": "display device", "weight": 1.0, "year": 2017}, {"source": "10", "target": "50", "source_name": "mobile phone", "target_name": "user interface", "weight": 1.0, "year": 2017}, {"source": "10", "target": "69", "source_name": "mobile phone", "target_name": "mobile devices", "weight": 4.0, "year": 2017}, {"source": "10", "target": "81", "source_name": "mobile phone", "target_name": "literature review", "weight": 1.0, "year": 2017}, {"source": "11", "target": "33", "source_name": "software engineering", "target_name": "parallel processing", "weight": 1.0, "year": 2017}, {"source": "11", "target": "36", "source_name": "software engineering", "target_name": "data visualization", "weight": 1.0, "year": 2017}, {"source": "11", "target": "43", "source_name": "software engineering", "target_name": "virtual reality", "weight": 1.0, "year": 2017}, {"source": "11", "target": "44", "source_name": "software engineering", "target_name": "source code", "weight": 1.0, "year": 2017}, {"source": "11", "target": "50", "source_name": "software engineering", "target_name": "user interface", "weight": 1.0, "year": 2017}, {"source": "11", "target": "51", "source_name": "software engineering", "target_name": "global illumination", "weight": 1.0, "year": 2017}, {"source": "11", "target": "52", "source_name": "software engineering", "target_name": "graphics cards", "weight": 2.0, "year": 2017}, {"source": "11", "target": "78", "source_name": "software engineering", "target_name": "ray tracing", "weight": 1.0, "year": 2017}, {"source": "12", "target": "33", "source_name": "graphics processor", "target_name": "parallel processing", "weight": 1.0, "year": 2017}, {"source": "12", "target": "43", "source_name": "graphics processor", "target_name": "virtual reality", "weight": 2.0, "year": 2017}, {"source": "12", "target": "52", "source_name": "graphics processor", "target_name": "graphics cards", "weight": 4.0, "year": 2017}, {"source": "12", "target": "60", "source_name": "graphics processor", "target_name": "floating point", "weight": 2.0, "year": 2017}, {"source": "12", "target": "64", "source_name": "graphics processor", "target_name": "scientific visualization", "weight": 1.0, "year": 2017}, {"source": "12", "target": "65", "source_name": "graphics processor", "target_name": "programming language", "weight": 3.0, "year": 2017}, {"source": "12", "target": "67", "source_name": "graphics processor", "target_name": "image processing", "weight": 2.0, "year": 2017}, {"source": "12", "target": "78", "source_name": "graphics processor", "target_name": "ray tracing", "weight": 1.0, "year": 2017}, {"source": "12", "target": "83", "source_name": "graphics processor", "target_name": "graphics processing unit", "weight": 3.0, "year": 2017}, {"source": "12", "target": "85", "source_name": "graphics processor", "target_name": "artificial intelligence", "weight": 1.0, "year": 2017}, {"source": "13", "target": "43", "source_name": "augmented reality", "target_name": "virtual reality", "weight": 2.0, "year": 2017}, {"source": "13", "target": "45", "source_name": "augmented reality", "target_name": "international conference", "weight": 1.0, "year": 2017}, {"source": "13", "target": "56", "source_name": "augmented reality", "target_name": "google trends", "weight": 1.0, "year": 2017}, {"source": "13", "target": "67", "source_name": "augmented reality", "target_name": "image processing", "weight": 1.0, "year": 2017}, {"source": "14", "target": "43", "source_name": "human perception", "target_name": "virtual reality", "weight": 2.0, "year": 2017}, {"source": "14", "target": "50", "source_name": "human perception", "target_name": "user interface", "weight": 2.0, "year": 2017}, {"source": "14", "target": "60", "source_name": "human perception", "target_name": "floating point", "weight": 2.0, "year": 2017}, {"source": "14", "target": "63", "source_name": "human perception", "target_name": "signal processing", "weight": 1.0, "year": 2017}, {"source": "14", "target": "71", "source_name": "human perception", "target_name": "embedded systems", "weight": 2.0, "year": 2017}, {"source": "14", "target": "80", "source_name": "human perception", "target_name": "virtual environments", "weight": 1.0, "year": 2017}, {"source": "14", "target": "86", "source_name": "human perception", "target_name": "graphical user interface", "weight": 1.0, "year": 2017}, {"source": "15", "target": "30", "source_name": "problem solving", "target_name": "graphic designer", "weight": 1.0, "year": 2017}, {"source": "15", "target": "47", "source_name": "problem solving", "target_name": "descriptive geometry", "weight": 1.0, "year": 2017}, {"source": "16", "target": "28", "source_name": "high school", "target_name": "current account", "weight": 1.0, "year": 2017}, {"source": "16", "target": "47", "source_name": "high school", "target_name": "descriptive geometry", "weight": 1.0, "year": 2017}, {"source": "16", "target": "49", "source_name": "high school", "target_name": "graphic arts", "weight": 1.0, "year": 2017}, {"source": "16", "target": "53", "source_name": "high school", "target_name": "graphic novels", "weight": 1.0, "year": 2017}, {"source": "16", "target": "70", "source_name": "high school", "target_name": "solid modeling", "weight": 1.0, "year": 2017}, {"source": "16", "target": "74", "source_name": "high school", "target_name": "united states", "weight": 1.0, "year": 2017}, {"source": "17", "target": "85", "source_name": "probabilistic graphical models", "target_name": "artificial intelligence", "weight": 1.0, "year": 2017}, {"source": "18", "target": "30", "source_name": "fine art", "target_name": "graphic designer", "weight": 1.0, "year": 2017}, {"source": "18", "target": "36", "source_name": "fine art", "target_name": "data visualization", "weight": 1.0, "year": 2017}, {"source": "18", "target": "49", "source_name": "fine art", "target_name": "graphic arts", "weight": 1.0, "year": 2017}, {"source": "18", "target": "66", "source_name": "fine art", "target_name": "traditional chinese", "weight": 1.0, "year": 2017}, {"source": "18", "target": "74", "source_name": "fine art", "target_name": "united states", "weight": 1.0, "year": 2017}, {"source": "20", "target": "29", "source_name": "higher education", "target_name": "teaching reform", "weight": 2.0, "year": 2017}, {"source": "20", "target": "30", "source_name": "higher education", "target_name": "graphic designer", "weight": 1.0, "year": 2017}, {"source": "20", "target": "47", "source_name": "higher education", "target_name": "descriptive geometry", "weight": 1.0, "year": 2017}, {"source": "20", "target": "53", "source_name": "higher education", "target_name": "graphic novels", "weight": 1.0, "year": 2017}, {"source": "21", "target": "23", "source_name": "graphical interface", "target_name": "modeling language", "weight": 1.0, "year": 2017}, {"source": "21", "target": "32", "source_name": "graphical interface", "target_name": "open source", "weight": 3.0, "year": 2017}, {"source": "21", "target": "44", "source_name": "graphical interface", "target_name": "source code", "weight": 1.0, "year": 2017}, {"source": "21", "target": "50", "source_name": "graphical interface", "target_name": "user interface", "weight": 6.0, "year": 2017}, {"source": "21", "target": "65", "source_name": "graphical interface", "target_name": "programming language", "weight": 2.0, "year": 2017}, {"source": "21", "target": "86", "source_name": "graphical interface", "target_name": "graphical user interface", "weight": 7.0, "year": 2017}, {"source": "22", "target": "35", "source_name": "social media", "target_name": "statistical analysis", "weight": 1.0, "year": 2017}, {"source": "22", "target": "87", "source_name": "social media", "target_name": "graphic organizer", "weight": 1.0, "year": 2017}, {"source": "23", "target": "43", "source_name": "modeling language", "target_name": "virtual reality", "weight": 1.0, "year": 2017}, {"source": "23", "target": "50", "source_name": "modeling language", "target_name": "user interface", "weight": 1.0, "year": 2017}, {"source": "24", "target": "48", "source_name": "cloud computing", "target_name": "big data", "weight": 1.0, "year": 2017}, {"source": "26", "target": "53", "source_name": "comic book", "target_name": "graphic novels", "weight": 5.0, "year": 2017}, {"source": "26", "target": "74", "source_name": "comic book", "target_name": "united states", "weight": 1.0, "year": 2017}, {"source": "27", "target": "53", "source_name": "media literacy", "target_name": "graphic novels", "weight": 1.0, "year": 2017}, {"source": "29", "target": "79", "source_name": "teaching reform", "target_name": "geometric modeling", "weight": 1.0, "year": 2017}, {"source": "30", "target": "36", "source_name": "graphic designer", "target_name": "data visualization", "weight": 1.0, "year": 2017}, {"source": "30", "target": "38", "source_name": "graphic designer", "target_name": "vector graphics", "weight": 1.0, "year": 2017}, {"source": "30", "target": "42", "source_name": "graphic designer", "target_name": "line graph", "weight": 1.0, "year": 2017}, {"source": "30", "target": "49", "source_name": "graphic designer", "target_name": "graphic arts", "weight": 1.0, "year": 2017}, {"source": "30", "target": "61", "source_name": "graphic designer", "target_name": "hong kong", "weight": 1.0, "year": 2017}, {"source": "30", "target": "66", "source_name": "graphic designer", "target_name": "traditional chinese", "weight": 1.0, "year": 2017}, {"source": "30", "target": "74", "source_name": "graphic designer", "target_name": "united states", "weight": 1.0, "year": 2017}, {"source": "30", "target": "86", "source_name": "graphic designer", "target_name": "graphical user interface", "weight": 1.0, "year": 2017}, {"source": "31", "target": "37", "source_name": "magnetic field", "target_name": "eddy current", "weight": 1.0, "year": 2017}, {"source": "31", "target": "50", "source_name": "magnetic field", "target_name": "user interface", "weight": 1.0, "year": 2017}, {"source": "32", "target": "50", "source_name": "open source", "target_name": "user interface", "weight": 2.0, "year": 2017}, {"source": "32", "target": "65", "source_name": "open source", "target_name": "programming language", "weight": 1.0, "year": 2017}, {"source": "32", "target": "86", "source_name": "open source", "target_name": "graphical user interface", "weight": 3.0, "year": 2017}, {"source": "33", "target": "36", "source_name": "parallel processing", "target_name": "data visualization", "weight": 1.0, "year": 2017}, {"source": "33", "target": "43", "source_name": "parallel processing", "target_name": "virtual reality", "weight": 2.0, "year": 2017}, {"source": "33", "target": "51", "source_name": "parallel processing", "target_name": "global illumination", "weight": 1.0, "year": 2017}, {"source": "33", "target": "52", "source_name": "parallel processing", "target_name": "graphics cards", "weight": 1.0, "year": 2017}, {"source": "33", "target": "63", "source_name": "parallel processing", "target_name": "signal processing", "weight": 1.0, "year": 2017}, {"source": "33", "target": "78", "source_name": "parallel processing", "target_name": "ray tracing", "weight": 1.0, "year": 2017}, {"source": "33", "target": "83", "source_name": "parallel processing", "target_name": "graphics processing unit", "weight": 4.0, "year": 2017}, {"source": "33", "target": "86", "source_name": "parallel processing", "target_name": "graphical user interface", "weight": 1.0, "year": 2017}, {"source": "34", "target": "87", "source_name": "reading comprehension", "target_name": "graphic organizer", "weight": 1.0, "year": 2017}, {"source": "35", "target": "36", "source_name": "statistical analysis", "target_name": "data visualization", "weight": 1.0, "year": 2017}, {"source": "35", "target": "48", "source_name": "statistical analysis", "target_name": "big data", "weight": 1.0, "year": 2017}, {"source": "36", "target": "42", "source_name": "data visualization", "target_name": "line graph", "weight": 1.0, "year": 2017}, {"source": "36", "target": "48", "source_name": "data visualization", "target_name": "big data", "weight": 2.0, "year": 2017}, {"source": "36", "target": "50", "source_name": "data visualization", "target_name": "user interface", "weight": 1.0, "year": 2017}, {"source": "36", "target": "56", "source_name": "data visualization", "target_name": "google trends", "weight": 1.0, "year": 2017}, {"source": "36", "target": "64", "source_name": "data visualization", "target_name": "scientific visualization", "weight": 1.0, "year": 2017}, {"source": "36", "target": "69", "source_name": "data visualization", "target_name": "mobile devices", "weight": 1.0, "year": 2017}, {"source": "36", "target": "82", "source_name": "data visualization", "target_name": "data mining", "weight": 1.0, "year": 2017}, {"source": "37", "target": "50", "source_name": "eddy current", "target_name": "user interface", "weight": 1.0, "year": 2017}, {"source": "38", "target": "50", "source_name": "vector graphics", "target_name": "user interface", "weight": 2.0, "year": 2017}, {"source": "38", "target": "62", "source_name": "vector graphics", "target_name": "pattern recognition", "weight": 1.0, "year": 2017}, {"source": "38", "target": "73", "source_name": "vector graphics", "target_name": "engineering drawing", "weight": 1.0, "year": 2017}, {"source": "38", "target": "77", "source_name": "vector graphics", "target_name": "scalable vector graphics", "weight": 15.0, "year": 2017}, {"source": "38", "target": "78", "source_name": "vector graphics", "target_name": "ray tracing", "weight": 1.0, "year": 2017}, {"source": "38", "target": "86", "source_name": "vector graphics", "target_name": "graphical user interface", "weight": 1.0, "year": 2017}, {"source": "39", "target": "40", "source_name": "display device", "target_name": "frame buffer", "weight": 1.0, "year": 2017}, {"source": "39", "target": "50", "source_name": "display device", "target_name": "user interface", "weight": 5.0, "year": 2017}, {"source": "39", "target": "86", "source_name": "display device", "target_name": "graphical user interface", "weight": 2.0, "year": 2017}, {"source": "40", "target": "84", "source_name": "frame buffer", "target_name": "frame rate", "weight": 1.0, "year": 2017}, {"source": "41", "target": "87", "source_name": "efl learners", "target_name": "graphic organizer", "weight": 1.0, "year": 2017}, {"source": "42", "target": "68", "source_name": "line graph", "target_name": "digital library", "weight": 1.0, "year": 2017}, {"source": "43", "target": "45", "source_name": "virtual reality", "target_name": "international conference", "weight": 1.0, "year": 2017}, {"source": "43", "target": "47", "source_name": "virtual reality", "target_name": "descriptive geometry", "weight": 1.0, "year": 2017}, {"source": "43", "target": "50", "source_name": "virtual reality", "target_name": "user interface", "weight": 7.0, "year": 2017}, {"source": "43", "target": "51", "source_name": "virtual reality", "target_name": "global illumination", "weight": 1.0, "year": 2017}, {"source": "43", "target": "52", "source_name": "virtual reality", "target_name": "graphics cards", "weight": 1.0, "year": 2017}, {"source": "43", "target": "60", "source_name": "virtual reality", "target_name": "floating point", "weight": 2.0, "year": 2017}, {"source": "43", "target": "61", "source_name": "virtual reality", "target_name": "hong kong", "weight": 1.0, "year": 2017}, {"source": "43", "target": "64", "source_name": "virtual reality", "target_name": "scientific visualization", "weight": 3.0, "year": 2017}, {"source": "43", "target": "65", "source_name": "virtual reality", "target_name": "programming language", "weight": 1.0, "year": 2017}, {"source": "43", "target": "67", "source_name": "virtual reality", "target_name": "image processing", "weight": 3.0, "year": 2017}, {"source": "43", "target": "71", "source_name": "virtual reality", "target_name": "embedded systems", "weight": 2.0, "year": 2017}, {"source": "43", "target": "78", "source_name": "virtual reality", "target_name": "ray tracing", "weight": 2.0, "year": 2017}, {"source": "43", "target": "80", "source_name": "virtual reality", "target_name": "virtual environments", "weight": 1.0, "year": 2017}, {"source": "43", "target": "83", "source_name": "virtual reality", "target_name": "graphics processing unit", "weight": 2.0, "year": 2017}, {"source": "43", "target": "85", "source_name": "virtual reality", "target_name": "artificial intelligence", "weight": 1.0, "year": 2017}, {"source": "43", "target": "86", "source_name": "virtual reality", "target_name": "graphical user interface", "weight": 1.0, "year": 2017}, {"source": "44", "target": "50", "source_name": "source code", "target_name": "user interface", "weight": 1.0, "year": 2017}, {"source": "44", "target": "65", "source_name": "source code", "target_name": "programming language", "weight": 1.0, "year": 2017}, {"source": "44", "target": "79", "source_name": "source code", "target_name": "geometric modeling", "weight": 1.0, "year": 2017}, {"source": "44", "target": "86", "source_name": "source code", "target_name": "graphical user interface", "weight": 2.0, "year": 2017}, {"source": "45", "target": "67", "source_name": "international conference", "target_name": "image processing", "weight": 2.0, "year": 2017}, {"source": "45", "target": "70", "source_name": "international conference", "target_name": "solid modeling", "weight": 2.0, "year": 2017}, {"source": "45", "target": "75", "source_name": "international conference", "target_name": "sustainable development", "weight": 1.0, "year": 2017}, {"source": "45", "target": "82", "source_name": "international conference", "target_name": "data mining", "weight": 1.0, "year": 2017}, {"source": "46", "target": "52", "source_name": "neural network", "target_name": "graphics cards", "weight": 1.0, "year": 2017}, {"source": "46", "target": "59", "source_name": "neural network", "target_name": "machine learning", "weight": 1.0, "year": 2017}, {"source": "46", "target": "83", "source_name": "neural network", "target_name": "graphics processing unit", "weight": 1.0, "year": 2017}, {"source": "47", "target": "64", "source_name": "descriptive geometry", "target_name": "scientific visualization", "weight": 1.0, "year": 2017}, {"source": "47", "target": "67", "source_name": "descriptive geometry", "target_name": "image processing", "weight": 1.0, "year": 2017}, {"source": "47", "target": "73", "source_name": "descriptive geometry", "target_name": "engineering drawing", "weight": 1.0, "year": 2017}, {"source": "49", "target": "74", "source_name": "graphic arts", "target_name": "united states", "weight": 1.0, "year": 2017}, {"source": "50", "target": "59", "source_name": "user interface", "target_name": "machine learning", "weight": 1.0, "year": 2017}, {"source": "50", "target": "60", "source_name": "user interface", "target_name": "floating point", "weight": 2.0, "year": 2017}, {"source": "50", "target": "62", "source_name": "user interface", "target_name": "pattern recognition", "weight": 1.0, "year": 2017}, {"source": "50", "target": "69", "source_name": "user interface", "target_name": "mobile devices", "weight": 1.0, "year": 2017}, {"source": "50", "target": "71", "source_name": "user interface", "target_name": "embedded systems", "weight": 3.0, "year": 2017}, {"source": "50", "target": "73", "source_name": "user interface", "target_name": "engineering drawing", "weight": 1.0, "year": 2017}, {"source": "50", "target": "77", "source_name": "user interface", "target_name": "scalable vector graphics", "weight": 1.0, "year": 2017}, {"source": "50", "target": "78", "source_name": "user interface", "target_name": "ray tracing", "weight": 2.0, "year": 2017}, {"source": "50", "target": "82", "source_name": "user interface", "target_name": "data mining", "weight": 1.0, "year": 2017}, {"source": "50", "target": "83", "source_name": "user interface", "target_name": "graphics processing unit", "weight": 1.0, "year": 2017}, {"source": "50", "target": "84", "source_name": "user interface", "target_name": "frame rate", "weight": 1.0, "year": 2017}, {"source": "50", "target": "86", "source_name": "user interface", "target_name": "graphical user interface", "weight": 49.0, "year": 2017}, {"source": "51", "target": "52", "source_name": "global illumination", "target_name": "graphics cards", "weight": 1.0, "year": 2017}, {"source": "51", "target": "78", "source_name": "global illumination", "target_name": "ray tracing", "weight": 2.0, "year": 2017}, {"source": "51", "target": "79", "source_name": "global illumination", "target_name": "geometric modeling", "weight": 1.0, "year": 2017}, {"source": "52", "target": "60", "source_name": "graphics cards", "target_name": "floating point", "weight": 4.0, "year": 2017}, {"source": "52", "target": "64", "source_name": "graphics cards", "target_name": "scientific visualization", "weight": 1.0, "year": 2017}, {"source": "52", "target": "65", "source_name": "graphics cards", "target_name": "programming language", "weight": 1.0, "year": 2017}, {"source": "52", "target": "78", "source_name": "graphics cards", "target_name": "ray tracing", "weight": 1.0, "year": 2017}, {"source": "52", "target": "83", "source_name": "graphics cards", "target_name": "graphics processing unit", "weight": 7.0, "year": 2017}, {"source": "52", "target": "84", "source_name": "graphics cards", "target_name": "frame rate", "weight": 4.0, "year": 2017}, {"source": "53", "target": "72", "source_name": "graphic novels", "target_name": "public libraries", "weight": 1.0, "year": 2017}, {"source": "53", "target": "74", "source_name": "graphic novels", "target_name": "united states", "weight": 1.0, "year": 2017}, {"source": "58", "target": "66", "source_name": "chinese character", "target_name": "traditional chinese", "weight": 1.0, "year": 2017}, {"source": "59", "target": "82", "source_name": "machine learning", "target_name": "data mining", "weight": 1.0, "year": 2017}, {"source": "59", "target": "85", "source_name": "machine learning", "target_name": "artificial intelligence", "weight": 1.0, "year": 2017}, {"source": "59", "target": "86", "source_name": "machine learning", "target_name": "graphical user interface", "weight": 1.0, "year": 2017}, {"source": "60", "target": "67", "source_name": "floating point", "target_name": "image processing", "weight": 1.0, "year": 2017}, {"source": "60", "target": "71", "source_name": "floating point", "target_name": "embedded systems", "weight": 2.0, "year": 2017}, {"source": "62", "target": "67", "source_name": "pattern recognition", "target_name": "image processing", "weight": 2.0, "year": 2017}, {"source": "62", "target": "73", "source_name": "pattern recognition", "target_name": "engineering drawing", "weight": 2.0, "year": 2017}, {"source": "63", "target": "67", "source_name": "signal processing", "target_name": "image processing", "weight": 1.0, "year": 2017}, {"source": "63", "target": "71", "source_name": "signal processing", "target_name": "embedded systems", "weight": 1.0, "year": 2017}, {"source": "63", "target": "83", "source_name": "signal processing", "target_name": "graphics processing unit", "weight": 1.0, "year": 2017}, {"source": "64", "target": "65", "source_name": "scientific visualization", "target_name": "programming language", "weight": 1.0, "year": 2017}, {"source": "64", "target": "67", "source_name": "scientific visualization", "target_name": "image processing", "weight": 1.0, "year": 2017}, {"source": "64", "target": "83", "source_name": "scientific visualization", "target_name": "graphics processing unit", "weight": 1.0, "year": 2017}, {"source": "65", "target": "67", "source_name": "programming language", "target_name": "image processing", "weight": 1.0, "year": 2017}, {"source": "65", "target": "78", "source_name": "programming language", "target_name": "ray tracing", "weight": 1.0, "year": 2017}, {"source": "65", "target": "79", "source_name": "programming language", "target_name": "geometric modeling", "weight": 1.0, "year": 2017}, {"source": "65", "target": "83", "source_name": "programming language", "target_name": "graphics processing unit", "weight": 3.0, "year": 2017}, {"source": "65", "target": "85", "source_name": "programming language", "target_name": "artificial intelligence", "weight": 1.0, "year": 2017}, {"source": "65", "target": "86", "source_name": "programming language", "target_name": "graphical user interface", "weight": 1.0, "year": 2017}, {"source": "67", "target": "70", "source_name": "image processing", "target_name": "solid modeling", "weight": 2.0, "year": 2017}, {"source": "67", "target": "78", "source_name": "image processing", "target_name": "ray tracing", "weight": 1.0, "year": 2017}, {"source": "67", "target": "83", "source_name": "image processing", "target_name": "graphics processing unit", "weight": 2.0, "year": 2017}, {"source": "68", "target": "74", "source_name": "digital library", "target_name": "united states", "weight": 1.0, "year": 2017}, {"source": "69", "target": "83", "source_name": "mobile devices", "target_name": "graphics processing unit", "weight": 1.0, "year": 2017}, {"source": "69", "target": "84", "source_name": "mobile devices", "target_name": "frame rate", "weight": 1.0, "year": 2017}, {"source": "70", "target": "74", "source_name": "solid modeling", "target_name": "united states", "weight": 1.0, "year": 2017}, {"source": "75", "target": "82", "source_name": "sustainable development", "target_name": "data mining", "weight": 1.0, "year": 2017}, {"source": "78", "target": "79", "source_name": "ray tracing", "target_name": "geometric modeling", "weight": 2.0, "year": 2017}, {"source": "78", "target": "83", "source_name": "ray tracing", "target_name": "graphics processing unit", "weight": 1.0, "year": 2017}, {"source": "78", "target": "86", "source_name": "ray tracing", "target_name": "graphical user interface", "weight": 1.0, "year": 2017}, {"source": "79", "target": "85", "source_name": "geometric modeling", "target_name": "artificial intelligence", "weight": 1.0, "year": 2017}, {"source": "80", "target": "83", "source_name": "virtual environments", "target_name": "graphics processing unit", "weight": 1.0, "year": 2017}, {"source": "80", "target": "85", "source_name": "virtual environments", "target_name": "artificial intelligence", "weight": 1.0, "year": 2017}, {"source": "82", "target": "85", "source_name": "data mining", "target_name": "artificial intelligence", "weight": 1.0, "year": 2017}, {"source": "82", "target": "86", "source_name": "data mining", "target_name": "graphical user interface", "weight": 1.0, "year": 2017}, {"source": "83", "target": "84", "source_name": "graphics processing unit", "target_name": "frame rate", "weight": 4.0, "year": 2017}, {"source": "85", "target": "86", "source_name": "artificial intelligence", "target_name": "graphical user interface", "weight": 1.0, "year": 2017}]}, {"2018": [{"source": "0", "target": "4", "source_name": "annual rainfall", "target_name": "water resources", "weight": 3.0, "year": 2018}, {"source": "0", "target": "75", "source_name": "annual rainfall", "target_name": "sustainable development", "weight": 1.0, "year": 2018}, {"source": "1", "target": "2", "source_name": "web page", "target_name": "visual communication", "weight": 1.0, "year": 2018}, {"source": "1", "target": "18", "source_name": "web page", "target_name": "fine art", "weight": 1.0, "year": 2018}, {"source": "1", "target": "30", "source_name": "web page", "target_name": "graphic designer", "weight": 1.0, "year": 2018}, {"source": "1", "target": "36", "source_name": "web page", "target_name": "data visualization", "weight": 1.0, "year": 2018}, {"source": "1", "target": "38", "source_name": "web page", "target_name": "vector graphics", "weight": 1.0, "year": 2018}, {"source": "1", "target": "49", "source_name": "web page", "target_name": "graphic arts", "weight": 1.0, "year": 2018}, {"source": "1", "target": "74", "source_name": "web page", "target_name": "united states", "weight": 1.0, "year": 2018}, {"source": "1", "target": "77", "source_name": "web page", "target_name": "scalable vector graphics", "weight": 1.0, "year": 2018}, {"source": "1", "target": "82", "source_name": "web page", "target_name": "data mining", "weight": 1.0, "year": 2018}, {"source": "1", "target": "84", "source_name": "web page", "target_name": "frame rate", "weight": 1.0, "year": 2018}, {"source": "2", "target": "10", "source_name": "visual communication", "target_name": "mobile phone", "weight": 1.0, "year": 2018}, {"source": "2", "target": "15", "source_name": "visual communication", "target_name": "problem solving", "weight": 1.0, "year": 2018}, {"source": "2", "target": "18", "source_name": "visual communication", "target_name": "fine art", "weight": 1.0, "year": 2018}, {"source": "2", "target": "20", "source_name": "visual communication", "target_name": "higher education", "weight": 2.0, "year": 2018}, {"source": "2", "target": "30", "source_name": "visual communication", "target_name": "graphic designer", "weight": 3.0, "year": 2018}, {"source": "2", "target": "39", "source_name": "visual communication", "target_name": "display device", "weight": 1.0, "year": 2018}, {"source": "2", "target": "49", "source_name": "visual communication", "target_name": "graphic arts", "weight": 1.0, "year": 2018}, {"source": "2", "target": "50", "source_name": "visual communication", "target_name": "user interface", "weight": 2.0, "year": 2018}, {"source": "2", "target": "58", "source_name": "visual communication", "target_name": "chinese character", "weight": 2.0, "year": 2018}, {"source": "2", "target": "74", "source_name": "visual communication", "target_name": "united states", "weight": 1.0, "year": 2018}, {"source": "2", "target": "86", "source_name": "visual communication", "target_name": "graphical user interface", "weight": 1.0, "year": 2018}, {"source": "3", "target": "63", "source_name": "statistical methods", "target_name": "signal processing", "weight": 1.0, "year": 2018}, {"source": "3", "target": "67", "source_name": "statistical methods", "target_name": "image processing", "weight": 1.0, "year": 2018}, {"source": "3", "target": "82", "source_name": "statistical methods", "target_name": "data mining", "weight": 1.0, "year": 2018}, {"source": "4", "target": "48", "source_name": "water resources", "target_name": "big data", "weight": 1.0, "year": 2018}, {"source": "4", "target": "75", "source_name": "water resources", "target_name": "sustainable development", "weight": 1.0, "year": 2018}, {"source": "6", "target": "12", "source_name": "parallel computing", "target_name": "graphics processor", "weight": 3.0, "year": 2018}, {"source": "6", "target": "33", "source_name": "parallel computing", "target_name": "parallel processing", "weight": 1.0, "year": 2018}, {"source": "6", "target": "36", "source_name": "parallel computing", "target_name": "data visualization", "weight": 1.0, "year": 2018}, {"source": "6", "target": "50", "source_name": "parallel computing", "target_name": "user interface", "weight": 1.0, "year": 2018}, {"source": "6", "target": "52", "source_name": "parallel computing", "target_name": "graphics cards", "weight": 2.0, "year": 2018}, {"source": "6", "target": "60", "source_name": "parallel computing", "target_name": "floating point", "weight": 1.0, "year": 2018}, {"source": "6", "target": "64", "source_name": "parallel computing", "target_name": "scientific visualization", "weight": 1.0, "year": 2018}, {"source": "6", "target": "83", "source_name": "parallel computing", "target_name": "graphics processing unit", "weight": 4.0, "year": 2018}, {"source": "6", "target": "86", "source_name": "parallel computing", "target_name": "graphical user interface", "weight": 1.0, "year": 2018}, {"source": "7", "target": "21", "source_name": "data acquisition", "target_name": "graphical interface", "weight": 1.0, "year": 2018}, {"source": "7", "target": "50", "source_name": "data acquisition", "target_name": "user interface", "weight": 3.0, "year": 2018}, {"source": "7", "target": "63", "source_name": "data acquisition", "target_name": "signal processing", "weight": 1.0, "year": 2018}, {"source": "7", "target": "65", "source_name": "data acquisition", "target_name": "programming language", "weight": 1.0, "year": 2018}, {"source": "7", "target": "67", "source_name": "data acquisition", "target_name": "image processing", "weight": 1.0, "year": 2018}, {"source": "7", "target": "86", "source_name": "data acquisition", "target_name": "graphical user interface", "weight": 2.0, "year": 2018}, {"source": "8", "target": "48", "source_name": "future directions", "target_name": "big data", "weight": 1.0, "year": 2018}, {"source": "8", "target": "50", "source_name": "future directions", "target_name": "user interface", "weight": 1.0, "year": 2018}, {"source": "8", "target": "59", "source_name": "future directions", "target_name": "machine learning", "weight": 1.0, "year": 2018}, {"source": "8", "target": "82", "source_name": "future directions", "target_name": "data mining", "weight": 1.0, "year": 2018}, {"source": "8", "target": "86", "source_name": "future directions", "target_name": "graphical user interface", "weight": 1.0, "year": 2018}, {"source": "9", "target": "21", "source_name": "object oriented", "target_name": "graphical interface", "weight": 1.0, "year": 2018}, {"source": "9", "target": "79", "source_name": "object oriented", "target_name": "geometric modeling", "weight": 1.0, "year": 2018}, {"source": "9", "target": "85", "source_name": "object oriented", "target_name": "artificial intelligence", "weight": 1.0, "year": 2018}, {"source": "10", "target": "12", "source_name": "mobile phone", "target_name": "graphics processor", "weight": 1.0, "year": 2018}, {"source": "10", "target": "21", "source_name": "mobile phone", "target_name": "graphical interface", "weight": 1.0, "year": 2018}, {"source": "10", "target": "39", "source_name": "mobile phone", "target_name": "display device", "weight": 1.0, "year": 2018}, {"source": "10", "target": "50", "source_name": "mobile phone", "target_name": "user interface", "weight": 1.0, "year": 2018}, {"source": "10", "target": "69", "source_name": "mobile phone", "target_name": "mobile devices", "weight": 4.0, "year": 2018}, {"source": "10", "target": "81", "source_name": "mobile phone", "target_name": "literature review", "weight": 1.0, "year": 2018}, {"source": "11", "target": "32", "source_name": "software engineering", "target_name": "open source", "weight": 1.0, "year": 2018}, {"source": "11", "target": "33", "source_name": "software engineering", "target_name": "parallel processing", "weight": 1.0, "year": 2018}, {"source": "11", "target": "36", "source_name": "software engineering", "target_name": "data visualization", "weight": 1.0, "year": 2018}, {"source": "11", "target": "43", "source_name": "software engineering", "target_name": "virtual reality", "weight": 1.0, "year": 2018}, {"source": "11", "target": "44", "source_name": "software engineering", "target_name": "source code", "weight": 2.0, "year": 2018}, {"source": "11", "target": "50", "source_name": "software engineering", "target_name": "user interface", "weight": 1.0, "year": 2018}, {"source": "11", "target": "51", "source_name": "software engineering", "target_name": "global illumination", "weight": 1.0, "year": 2018}, {"source": "11", "target": "52", "source_name": "software engineering", "target_name": "graphics cards", "weight": 2.0, "year": 2018}, {"source": "11", "target": "78", "source_name": "software engineering", "target_name": "ray tracing", "weight": 1.0, "year": 2018}, {"source": "12", "target": "33", "source_name": "graphics processor", "target_name": "parallel processing", "weight": 1.0, "year": 2018}, {"source": "12", "target": "43", "source_name": "graphics processor", "target_name": "virtual reality", "weight": 2.0, "year": 2018}, {"source": "12", "target": "52", "source_name": "graphics processor", "target_name": "graphics cards", "weight": 4.0, "year": 2018}, {"source": "12", "target": "60", "source_name": "graphics processor", "target_name": "floating point", "weight": 2.0, "year": 2018}, {"source": "12", "target": "64", "source_name": "graphics processor", "target_name": "scientific visualization", "weight": 1.0, "year": 2018}, {"source": "12", "target": "65", "source_name": "graphics processor", "target_name": "programming language", "weight": 3.0, "year": 2018}, {"source": "12", "target": "67", "source_name": "graphics processor", "target_name": "image processing", "weight": 2.0, "year": 2018}, {"source": "12", "target": "78", "source_name": "graphics processor", "target_name": "ray tracing", "weight": 1.0, "year": 2018}, {"source": "12", "target": "83", "source_name": "graphics processor", "target_name": "graphics processing unit", "weight": 3.0, "year": 2018}, {"source": "12", "target": "85", "source_name": "graphics processor", "target_name": "artificial intelligence", "weight": 1.0, "year": 2018}, {"source": "13", "target": "36", "source_name": "augmented reality", "target_name": "data visualization", "weight": 1.0, "year": 2018}, {"source": "13", "target": "43", "source_name": "augmented reality", "target_name": "virtual reality", "weight": 3.0, "year": 2018}, {"source": "13", "target": "45", "source_name": "augmented reality", "target_name": "international conference", "weight": 1.0, "year": 2018}, {"source": "13", "target": "50", "source_name": "augmented reality", "target_name": "user interface", "weight": 1.0, "year": 2018}, {"source": "13", "target": "56", "source_name": "augmented reality", "target_name": "google trends", "weight": 1.0, "year": 2018}, {"source": "13", "target": "67", "source_name": "augmented reality", "target_name": "image processing", "weight": 1.0, "year": 2018}, {"source": "14", "target": "43", "source_name": "human perception", "target_name": "virtual reality", "weight": 2.0, "year": 2018}, {"source": "14", "target": "50", "source_name": "human perception", "target_name": "user interface", "weight": 2.0, "year": 2018}, {"source": "14", "target": "60", "source_name": "human perception", "target_name": "floating point", "weight": 2.0, "year": 2018}, {"source": "14", "target": "63", "source_name": "human perception", "target_name": "signal processing", "weight": 1.0, "year": 2018}, {"source": "14", "target": "71", "source_name": "human perception", "target_name": "embedded systems", "weight": 2.0, "year": 2018}, {"source": "14", "target": "80", "source_name": "human perception", "target_name": "virtual environments", "weight": 1.0, "year": 2018}, {"source": "14", "target": "86", "source_name": "human perception", "target_name": "graphical user interface", "weight": 1.0, "year": 2018}, {"source": "15", "target": "30", "source_name": "problem solving", "target_name": "graphic designer", "weight": 1.0, "year": 2018}, {"source": "15", "target": "47", "source_name": "problem solving", "target_name": "descriptive geometry", "weight": 1.0, "year": 2018}, {"source": "16", "target": "28", "source_name": "high school", "target_name": "current account", "weight": 1.0, "year": 2018}, {"source": "16", "target": "47", "source_name": "high school", "target_name": "descriptive geometry", "weight": 1.0, "year": 2018}, {"source": "16", "target": "49", "source_name": "high school", "target_name": "graphic arts", "weight": 1.0, "year": 2018}, {"source": "16", "target": "53", "source_name": "high school", "target_name": "graphic novels", "weight": 1.0, "year": 2018}, {"source": "16", "target": "70", "source_name": "high school", "target_name": "solid modeling", "weight": 1.0, "year": 2018}, {"source": "16", "target": "74", "source_name": "high school", "target_name": "united states", "weight": 1.0, "year": 2018}, {"source": "17", "target": "85", "source_name": "probabilistic graphical models", "target_name": "artificial intelligence", "weight": 1.0, "year": 2018}, {"source": "18", "target": "30", "source_name": "fine art", "target_name": "graphic designer", "weight": 1.0, "year": 2018}, {"source": "18", "target": "36", "source_name": "fine art", "target_name": "data visualization", "weight": 1.0, "year": 2018}, {"source": "18", "target": "49", "source_name": "fine art", "target_name": "graphic arts", "weight": 2.0, "year": 2018}, {"source": "18", "target": "66", "source_name": "fine art", "target_name": "traditional chinese", "weight": 1.0, "year": 2018}, {"source": "18", "target": "74", "source_name": "fine art", "target_name": "united states", "weight": 1.0, "year": 2018}, {"source": "20", "target": "29", "source_name": "higher education", "target_name": "teaching reform", "weight": 2.0, "year": 2018}, {"source": "20", "target": "30", "source_name": "higher education", "target_name": "graphic designer", "weight": 1.0, "year": 2018}, {"source": "20", "target": "47", "source_name": "higher education", "target_name": "descriptive geometry", "weight": 1.0, "year": 2018}, {"source": "20", "target": "53", "source_name": "higher education", "target_name": "graphic novels", "weight": 1.0, "year": 2018}, {"source": "21", "target": "23", "source_name": "graphical interface", "target_name": "modeling language", "weight": 1.0, "year": 2018}, {"source": "21", "target": "32", "source_name": "graphical interface", "target_name": "open source", "weight": 3.0, "year": 2018}, {"source": "21", "target": "44", "source_name": "graphical interface", "target_name": "source code", "weight": 1.0, "year": 2018}, {"source": "21", "target": "50", "source_name": "graphical interface", "target_name": "user interface", "weight": 6.0, "year": 2018}, {"source": "21", "target": "65", "source_name": "graphical interface", "target_name": "programming language", "weight": 2.0, "year": 2018}, {"source": "21", "target": "69", "source_name": "graphical interface", "target_name": "mobile devices", "weight": 1.0, "year": 2018}, {"source": "21", "target": "85", "source_name": "graphical interface", "target_name": "artificial intelligence", "weight": 1.0, "year": 2018}, {"source": "21", "target": "86", "source_name": "graphical interface", "target_name": "graphical user interface", "weight": 7.0, "year": 2018}, {"source": "22", "target": "35", "source_name": "social media", "target_name": "statistical analysis", "weight": 1.0, "year": 2018}, {"source": "22", "target": "87", "source_name": "social media", "target_name": "graphic organizer", "weight": 1.0, "year": 2018}, {"source": "23", "target": "43", "source_name": "modeling language", "target_name": "virtual reality", "weight": 1.0, "year": 2018}, {"source": "23", "target": "50", "source_name": "modeling language", "target_name": "user interface", "weight": 1.0, "year": 2018}, {"source": "24", "target": "48", "source_name": "cloud computing", "target_name": "big data", "weight": 1.0, "year": 2018}, {"source": "26", "target": "53", "source_name": "comic book", "target_name": "graphic novels", "weight": 5.0, "year": 2018}, {"source": "26", "target": "74", "source_name": "comic book", "target_name": "united states", "weight": 1.0, "year": 2018}, {"source": "27", "target": "53", "source_name": "media literacy", "target_name": "graphic novels", "weight": 1.0, "year": 2018}, {"source": "29", "target": "79", "source_name": "teaching reform", "target_name": "geometric modeling", "weight": 1.0, "year": 2018}, {"source": "30", "target": "36", "source_name": "graphic designer", "target_name": "data visualization", "weight": 1.0, "year": 2018}, {"source": "30", "target": "38", "source_name": "graphic designer", "target_name": "vector graphics", "weight": 1.0, "year": 2018}, {"source": "30", "target": "42", "source_name": "graphic designer", "target_name": "line graph", "weight": 1.0, "year": 2018}, {"source": "30", "target": "49", "source_name": "graphic designer", "target_name": "graphic arts", "weight": 1.0, "year": 2018}, {"source": "30", "target": "61", "source_name": "graphic designer", "target_name": "hong kong", "weight": 1.0, "year": 2018}, {"source": "30", "target": "66", "source_name": "graphic designer", "target_name": "traditional chinese", "weight": 1.0, "year": 2018}, {"source": "30", "target": "74", "source_name": "graphic designer", "target_name": "united states", "weight": 1.0, "year": 2018}, {"source": "30", "target": "86", "source_name": "graphic designer", "target_name": "graphical user interface", "weight": 1.0, "year": 2018}, {"source": "31", "target": "37", "source_name": "magnetic field", "target_name": "eddy current", "weight": 1.0, "year": 2018}, {"source": "31", "target": "50", "source_name": "magnetic field", "target_name": "user interface", "weight": 1.0, "year": 2018}, {"source": "32", "target": "44", "source_name": "open source", "target_name": "source code", "weight": 1.0, "year": 2018}, {"source": "32", "target": "50", "source_name": "open source", "target_name": "user interface", "weight": 2.0, "year": 2018}, {"source": "32", "target": "65", "source_name": "open source", "target_name": "programming language", "weight": 1.0, "year": 2018}, {"source": "32", "target": "86", "source_name": "open source", "target_name": "graphical user interface", "weight": 3.0, "year": 2018}, {"source": "33", "target": "36", "source_name": "parallel processing", "target_name": "data visualization", "weight": 1.0, "year": 2018}, {"source": "33", "target": "43", "source_name": "parallel processing", "target_name": "virtual reality", "weight": 2.0, "year": 2018}, {"source": "33", "target": "51", "source_name": "parallel processing", "target_name": "global illumination", "weight": 1.0, "year": 2018}, {"source": "33", "target": "52", "source_name": "parallel processing", "target_name": "graphics cards", "weight": 1.0, "year": 2018}, {"source": "33", "target": "63", "source_name": "parallel processing", "target_name": "signal processing", "weight": 1.0, "year": 2018}, {"source": "33", "target": "78", "source_name": "parallel processing", "target_name": "ray tracing", "weight": 1.0, "year": 2018}, {"source": "33", "target": "83", "source_name": "parallel processing", "target_name": "graphics processing unit", "weight": 4.0, "year": 2018}, {"source": "33", "target": "86", "source_name": "parallel processing", "target_name": "graphical user interface", "weight": 1.0, "year": 2018}, {"source": "34", "target": "41", "source_name": "reading comprehension", "target_name": "efl learners", "weight": 1.0, "year": 2018}, {"source": "34", "target": "87", "source_name": "reading comprehension", "target_name": "graphic organizer", "weight": 2.0, "year": 2018}, {"source": "35", "target": "36", "source_name": "statistical analysis", "target_name": "data visualization", "weight": 1.0, "year": 2018}, {"source": "35", "target": "48", "source_name": "statistical analysis", "target_name": "big data", "weight": 1.0, "year": 2018}, {"source": "36", "target": "42", "source_name": "data visualization", "target_name": "line graph", "weight": 1.0, "year": 2018}, {"source": "36", "target": "43", "source_name": "data visualization", "target_name": "virtual reality", "weight": 1.0, "year": 2018}, {"source": "36", "target": "48", "source_name": "data visualization", "target_name": "big data", "weight": 2.0, "year": 2018}, {"source": "36", "target": "50", "source_name": "data visualization", "target_name": "user interface", "weight": 3.0, "year": 2018}, {"source": "36", "target": "56", "source_name": "data visualization", "target_name": "google trends", "weight": 1.0, "year": 2018}, {"source": "36", "target": "64", "source_name": "data visualization", "target_name": "scientific visualization", "weight": 1.0, "year": 2018}, {"source": "36", "target": "69", "source_name": "data visualization", "target_name": "mobile devices", "weight": 1.0, "year": 2018}, {"source": "36", "target": "82", "source_name": "data visualization", "target_name": "data mining", "weight": 1.0, "year": 2018}, {"source": "37", "target": "50", "source_name": "eddy current", "target_name": "user interface", "weight": 1.0, "year": 2018}, {"source": "37", "target": "86", "source_name": "eddy current", "target_name": "graphical user interface", "weight": 1.0, "year": 2018}, {"source": "38", "target": "50", "source_name": "vector graphics", "target_name": "user interface", "weight": 2.0, "year": 2018}, {"source": "38", "target": "62", "source_name": "vector graphics", "target_name": "pattern recognition", "weight": 1.0, "year": 2018}, {"source": "38", "target": "73", "source_name": "vector graphics", "target_name": "engineering drawing", "weight": 1.0, "year": 2018}, {"source": "38", "target": "77", "source_name": "vector graphics", "target_name": "scalable vector graphics", "weight": 15.0, "year": 2018}, {"source": "38", "target": "78", "source_name": "vector graphics", "target_name": "ray tracing", "weight": 1.0, "year": 2018}, {"source": "38", "target": "86", "source_name": "vector graphics", "target_name": "graphical user interface", "weight": 1.0, "year": 2018}, {"source": "39", "target": "40", "source_name": "display device", "target_name": "frame buffer", "weight": 1.0, "year": 2018}, {"source": "39", "target": "50", "source_name": "display device", "target_name": "user interface", "weight": 5.0, "year": 2018}, {"source": "39", "target": "86", "source_name": "display device", "target_name": "graphical user interface", "weight": 2.0, "year": 2018}, {"source": "40", "target": "84", "source_name": "frame buffer", "target_name": "frame rate", "weight": 1.0, "year": 2018}, {"source": "41", "target": "87", "source_name": "efl learners", "target_name": "graphic organizer", "weight": 2.0, "year": 2018}, {"source": "42", "target": "68", "source_name": "line graph", "target_name": "digital library", "weight": 1.0, "year": 2018}, {"source": "43", "target": "45", "source_name": "virtual reality", "target_name": "international conference", "weight": 1.0, "year": 2018}, {"source": "43", "target": "47", "source_name": "virtual reality", "target_name": "descriptive geometry", "weight": 1.0, "year": 2018}, {"source": "43", "target": "50", "source_name": "virtual reality", "target_name": "user interface", "weight": 8.0, "year": 2018}, {"source": "43", "target": "51", "source_name": "virtual reality", "target_name": "global illumination", "weight": 1.0, "year": 2018}, {"source": "43", "target": "52", "source_name": "virtual reality", "target_name": "graphics cards", "weight": 1.0, "year": 2018}, {"source": "43", "target": "60", "source_name": "virtual reality", "target_name": "floating point", "weight": 2.0, "year": 2018}, {"source": "43", "target": "61", "source_name": "virtual reality", "target_name": "hong kong", "weight": 1.0, "year": 2018}, {"source": "43", "target": "64", "source_name": "virtual reality", "target_name": "scientific visualization", "weight": 3.0, "year": 2018}, {"source": "43", "target": "65", "source_name": "virtual reality", "target_name": "programming language", "weight": 1.0, "year": 2018}, {"source": "43", "target": "67", "source_name": "virtual reality", "target_name": "image processing", "weight": 3.0, "year": 2018}, {"source": "43", "target": "71", "source_name": "virtual reality", "target_name": "embedded systems", "weight": 2.0, "year": 2018}, {"source": "43", "target": "78", "source_name": "virtual reality", "target_name": "ray tracing", "weight": 2.0, "year": 2018}, {"source": "43", "target": "80", "source_name": "virtual reality", "target_name": "virtual environments", "weight": 1.0, "year": 2018}, {"source": "43", "target": "83", "source_name": "virtual reality", "target_name": "graphics processing unit", "weight": 2.0, "year": 2018}, {"source": "43", "target": "85", "source_name": "virtual reality", "target_name": "artificial intelligence", "weight": 1.0, "year": 2018}, {"source": "43", "target": "86", "source_name": "virtual reality", "target_name": "graphical user interface", "weight": 1.0, "year": 2018}, {"source": "44", "target": "50", "source_name": "source code", "target_name": "user interface", "weight": 1.0, "year": 2018}, {"source": "44", "target": "65", "source_name": "source code", "target_name": "programming language", "weight": 1.0, "year": 2018}, {"source": "44", "target": "79", "source_name": "source code", "target_name": "geometric modeling", "weight": 1.0, "year": 2018}, {"source": "44", "target": "86", "source_name": "source code", "target_name": "graphical user interface", "weight": 2.0, "year": 2018}, {"source": "45", "target": "67", "source_name": "international conference", "target_name": "image processing", "weight": 2.0, "year": 2018}, {"source": "45", "target": "70", "source_name": "international conference", "target_name": "solid modeling", "weight": 2.0, "year": 2018}, {"source": "45", "target": "75", "source_name": "international conference", "target_name": "sustainable development", "weight": 1.0, "year": 2018}, {"source": "45", "target": "82", "source_name": "international conference", "target_name": "data mining", "weight": 1.0, "year": 2018}, {"source": "46", "target": "52", "source_name": "neural network", "target_name": "graphics cards", "weight": 1.0, "year": 2018}, {"source": "46", "target": "59", "source_name": "neural network", "target_name": "machine learning", "weight": 1.0, "year": 2018}, {"source": "46", "target": "83", "source_name": "neural network", "target_name": "graphics processing unit", "weight": 1.0, "year": 2018}, {"source": "47", "target": "64", "source_name": "descriptive geometry", "target_name": "scientific visualization", "weight": 1.0, "year": 2018}, {"source": "47", "target": "67", "source_name": "descriptive geometry", "target_name": "image processing", "weight": 1.0, "year": 2018}, {"source": "47", "target": "73", "source_name": "descriptive geometry", "target_name": "engineering drawing", "weight": 1.0, "year": 2018}, {"source": "48", "target": "59", "source_name": "big data", "target_name": "machine learning", "weight": 1.0, "year": 2018}, {"source": "48", "target": "82", "source_name": "big data", "target_name": "data mining", "weight": 1.0, "year": 2018}, {"source": "49", "target": "74", "source_name": "graphic arts", "target_name": "united states", "weight": 1.0, "year": 2018}, {"source": "50", "target": "59", "source_name": "user interface", "target_name": "machine learning", "weight": 1.0, "year": 2018}, {"source": "50", "target": "60", "source_name": "user interface", "target_name": "floating point", "weight": 2.0, "year": 2018}, {"source": "50", "target": "62", "source_name": "user interface", "target_name": "pattern recognition", "weight": 1.0, "year": 2018}, {"source": "50", "target": "69", "source_name": "user interface", "target_name": "mobile devices", "weight": 1.0, "year": 2018}, {"source": "50", "target": "71", "source_name": "user interface", "target_name": "embedded systems", "weight": 3.0, "year": 2018}, {"source": "50", "target": "73", "source_name": "user interface", "target_name": "engineering drawing", "weight": 1.0, "year": 2018}, {"source": "50", "target": "77", "source_name": "user interface", "target_name": "scalable vector graphics", "weight": 1.0, "year": 2018}, {"source": "50", "target": "78", "source_name": "user interface", "target_name": "ray tracing", "weight": 2.0, "year": 2018}, {"source": "50", "target": "82", "source_name": "user interface", "target_name": "data mining", "weight": 1.0, "year": 2018}, {"source": "50", "target": "83", "source_name": "user interface", "target_name": "graphics processing unit", "weight": 2.0, "year": 2018}, {"source": "50", "target": "84", "source_name": "user interface", "target_name": "frame rate", "weight": 1.0, "year": 2018}, {"source": "50", "target": "86", "source_name": "user interface", "target_name": "graphical user interface", "weight": 50.0, "year": 2018}, {"source": "51", "target": "52", "source_name": "global illumination", "target_name": "graphics cards", "weight": 1.0, "year": 2018}, {"source": "51", "target": "78", "source_name": "global illumination", "target_name": "ray tracing", "weight": 2.0, "year": 2018}, {"source": "51", "target": "79", "source_name": "global illumination", "target_name": "geometric modeling", "weight": 1.0, "year": 2018}, {"source": "52", "target": "60", "source_name": "graphics cards", "target_name": "floating point", "weight": 4.0, "year": 2018}, {"source": "52", "target": "64", "source_name": "graphics cards", "target_name": "scientific visualization", "weight": 1.0, "year": 2018}, {"source": "52", "target": "65", "source_name": "graphics cards", "target_name": "programming language", "weight": 1.0, "year": 2018}, {"source": "52", "target": "78", "source_name": "graphics cards", "target_name": "ray tracing", "weight": 1.0, "year": 2018}, {"source": "52", "target": "83", "source_name": "graphics cards", "target_name": "graphics processing unit", "weight": 7.0, "year": 2018}, {"source": "52", "target": "84", "source_name": "graphics cards", "target_name": "frame rate", "weight": 4.0, "year": 2018}, {"source": "53", "target": "72", "source_name": "graphic novels", "target_name": "public libraries", "weight": 1.0, "year": 2018}, {"source": "53", "target": "74", "source_name": "graphic novels", "target_name": "united states", "weight": 1.0, "year": 2018}, {"source": "58", "target": "66", "source_name": "chinese character", "target_name": "traditional chinese", "weight": 1.0, "year": 2018}, {"source": "59", "target": "82", "source_name": "machine learning", "target_name": "data mining", "weight": 2.0, "year": 2018}, {"source": "59", "target": "85", "source_name": "machine learning", "target_name": "artificial intelligence", "weight": 1.0, "year": 2018}, {"source": "59", "target": "86", "source_name": "machine learning", "target_name": "graphical user interface", "weight": 1.0, "year": 2018}, {"source": "60", "target": "67", "source_name": "floating point", "target_name": "image processing", "weight": 1.0, "year": 2018}, {"source": "60", "target": "71", "source_name": "floating point", "target_name": "embedded systems", "weight": 2.0, "year": 2018}, {"source": "62", "target": "67", "source_name": "pattern recognition", "target_name": "image processing", "weight": 2.0, "year": 2018}, {"source": "62", "target": "73", "source_name": "pattern recognition", "target_name": "engineering drawing", "weight": 2.0, "year": 2018}, {"source": "63", "target": "67", "source_name": "signal processing", "target_name": "image processing", "weight": 1.0, "year": 2018}, {"source": "63", "target": "71", "source_name": "signal processing", "target_name": "embedded systems", "weight": 1.0, "year": 2018}, {"source": "63", "target": "83", "source_name": "signal processing", "target_name": "graphics processing unit", "weight": 1.0, "year": 2018}, {"source": "64", "target": "65", "source_name": "scientific visualization", "target_name": "programming language", "weight": 1.0, "year": 2018}, {"source": "64", "target": "67", "source_name": "scientific visualization", "target_name": "image processing", "weight": 1.0, "year": 2018}, {"source": "64", "target": "83", "source_name": "scientific visualization", "target_name": "graphics processing unit", "weight": 1.0, "year": 2018}, {"source": "65", "target": "67", "source_name": "programming language", "target_name": "image processing", "weight": 1.0, "year": 2018}, {"source": "65", "target": "78", "source_name": "programming language", "target_name": "ray tracing", "weight": 1.0, "year": 2018}, {"source": "65", "target": "79", "source_name": "programming language", "target_name": "geometric modeling", "weight": 1.0, "year": 2018}, {"source": "65", "target": "83", "source_name": "programming language", "target_name": "graphics processing unit", "weight": 3.0, "year": 2018}, {"source": "65", "target": "85", "source_name": "programming language", "target_name": "artificial intelligence", "weight": 1.0, "year": 2018}, {"source": "65", "target": "86", "source_name": "programming language", "target_name": "graphical user interface", "weight": 1.0, "year": 2018}, {"source": "67", "target": "70", "source_name": "image processing", "target_name": "solid modeling", "weight": 2.0, "year": 2018}, {"source": "67", "target": "78", "source_name": "image processing", "target_name": "ray tracing", "weight": 1.0, "year": 2018}, {"source": "67", "target": "83", "source_name": "image processing", "target_name": "graphics processing unit", "weight": 2.0, "year": 2018}, {"source": "68", "target": "74", "source_name": "digital library", "target_name": "united states", "weight": 1.0, "year": 2018}, {"source": "69", "target": "83", "source_name": "mobile devices", "target_name": "graphics processing unit", "weight": 1.0, "year": 2018}, {"source": "69", "target": "84", "source_name": "mobile devices", "target_name": "frame rate", "weight": 1.0, "year": 2018}, {"source": "69", "target": "85", "source_name": "mobile devices", "target_name": "artificial intelligence", "weight": 1.0, "year": 2018}, {"source": "70", "target": "74", "source_name": "solid modeling", "target_name": "united states", "weight": 1.0, "year": 2018}, {"source": "75", "target": "82", "source_name": "sustainable development", "target_name": "data mining", "weight": 1.0, "year": 2018}, {"source": "78", "target": "79", "source_name": "ray tracing", "target_name": "geometric modeling", "weight": 2.0, "year": 2018}, {"source": "78", "target": "83", "source_name": "ray tracing", "target_name": "graphics processing unit", "weight": 1.0, "year": 2018}, {"source": "78", "target": "86", "source_name": "ray tracing", "target_name": "graphical user interface", "weight": 1.0, "year": 2018}, {"source": "79", "target": "85", "source_name": "geometric modeling", "target_name": "artificial intelligence", "weight": 1.0, "year": 2018}, {"source": "80", "target": "83", "source_name": "virtual environments", "target_name": "graphics processing unit", "weight": 1.0, "year": 2018}, {"source": "80", "target": "85", "source_name": "virtual environments", "target_name": "artificial intelligence", "weight": 1.0, "year": 2018}, {"source": "82", "target": "85", "source_name": "data mining", "target_name": "artificial intelligence", "weight": 1.0, "year": 2018}, {"source": "82", "target": "86", "source_name": "data mining", "target_name": "graphical user interface", "weight": 1.0, "year": 2018}, {"source": "83", "target": "84", "source_name": "graphics processing unit", "target_name": "frame rate", "weight": 4.0, "year": 2018}, {"source": "85", "target": "86", "source_name": "artificial intelligence", "target_name": "graphical user interface", "weight": 1.0, "year": 2018}]}, {"2019": [{"source": "0", "target": "3", "source_name": "annual rainfall", "target_name": "statistical methods", "weight": 1.0, "year": 2019}, {"source": "0", "target": "4", "source_name": "annual rainfall", "target_name": "water resources", "weight": 3.0, "year": 2019}, {"source": "0", "target": "75", "source_name": "annual rainfall", "target_name": "sustainable development", "weight": 1.0, "year": 2019}, {"source": "1", "target": "2", "source_name": "web page", "target_name": "visual communication", "weight": 1.0, "year": 2019}, {"source": "1", "target": "18", "source_name": "web page", "target_name": "fine art", "weight": 1.0, "year": 2019}, {"source": "1", "target": "30", "source_name": "web page", "target_name": "graphic designer", "weight": 1.0, "year": 2019}, {"source": "1", "target": "36", "source_name": "web page", "target_name": "data visualization", "weight": 1.0, "year": 2019}, {"source": "1", "target": "38", "source_name": "web page", "target_name": "vector graphics", "weight": 1.0, "year": 2019}, {"source": "1", "target": "49", "source_name": "web page", "target_name": "graphic arts", "weight": 1.0, "year": 2019}, {"source": "1", "target": "50", "source_name": "web page", "target_name": "user interface", "weight": 1.0, "year": 2019}, {"source": "1", "target": "74", "source_name": "web page", "target_name": "united states", "weight": 1.0, "year": 2019}, {"source": "1", "target": "77", "source_name": "web page", "target_name": "scalable vector graphics", "weight": 1.0, "year": 2019}, {"source": "1", "target": "82", "source_name": "web page", "target_name": "data mining", "weight": 1.0, "year": 2019}, {"source": "1", "target": "84", "source_name": "web page", "target_name": "frame rate", "weight": 1.0, "year": 2019}, {"source": "1", "target": "86", "source_name": "web page", "target_name": "graphical user interface", "weight": 1.0, "year": 2019}, {"source": "2", "target": "10", "source_name": "visual communication", "target_name": "mobile phone", "weight": 1.0, "year": 2019}, {"source": "2", "target": "15", "source_name": "visual communication", "target_name": "problem solving", "weight": 1.0, "year": 2019}, {"source": "2", "target": "18", "source_name": "visual communication", "target_name": "fine art", "weight": 1.0, "year": 2019}, {"source": "2", "target": "20", "source_name": "visual communication", "target_name": "higher education", "weight": 2.0, "year": 2019}, {"source": "2", "target": "30", "source_name": "visual communication", "target_name": "graphic designer", "weight": 3.0, "year": 2019}, {"source": "2", "target": "39", "source_name": "visual communication", "target_name": "display device", "weight": 1.0, "year": 2019}, {"source": "2", "target": "49", "source_name": "visual communication", "target_name": "graphic arts", "weight": 1.0, "year": 2019}, {"source": "2", "target": "50", "source_name": "visual communication", "target_name": "user interface", "weight": 2.0, "year": 2019}, {"source": "2", "target": "58", "source_name": "visual communication", "target_name": "chinese character", "weight": 2.0, "year": 2019}, {"source": "2", "target": "74", "source_name": "visual communication", "target_name": "united states", "weight": 1.0, "year": 2019}, {"source": "2", "target": "86", "source_name": "visual communication", "target_name": "graphical user interface", "weight": 1.0, "year": 2019}, {"source": "3", "target": "63", "source_name": "statistical methods", "target_name": "signal processing", "weight": 1.0, "year": 2019}, {"source": "3", "target": "67", "source_name": "statistical methods", "target_name": "image processing", "weight": 1.0, "year": 2019}, {"source": "3", "target": "82", "source_name": "statistical methods", "target_name": "data mining", "weight": 1.0, "year": 2019}, {"source": "4", "target": "48", "source_name": "water resources", "target_name": "big data", "weight": 1.0, "year": 2019}, {"source": "4", "target": "54", "source_name": "water resources", "target_name": "climate change", "weight": 1.0, "year": 2019}, {"source": "4", "target": "75", "source_name": "water resources", "target_name": "sustainable development", "weight": 1.0, "year": 2019}, {"source": "5", "target": "30", "source_name": "fashion design", "target_name": "graphic designer", "weight": 1.0, "year": 2019}, {"source": "6", "target": "12", "source_name": "parallel computing", "target_name": "graphics processor", "weight": 3.0, "year": 2019}, {"source": "6", "target": "33", "source_name": "parallel computing", "target_name": "parallel processing", "weight": 1.0, "year": 2019}, {"source": "6", "target": "36", "source_name": "parallel computing", "target_name": "data visualization", "weight": 1.0, "year": 2019}, {"source": "6", "target": "37", "source_name": "parallel computing", "target_name": "eddy current", "weight": 1.0, "year": 2019}, {"source": "6", "target": "50", "source_name": "parallel computing", "target_name": "user interface", "weight": 1.0, "year": 2019}, {"source": "6", "target": "52", "source_name": "parallel computing", "target_name": "graphics cards", "weight": 2.0, "year": 2019}, {"source": "6", "target": "60", "source_name": "parallel computing", "target_name": "floating point", "weight": 1.0, "year": 2019}, {"source": "6", "target": "64", "source_name": "parallel computing", "target_name": "scientific visualization", "weight": 1.0, "year": 2019}, {"source": "6", "target": "67", "source_name": "parallel computing", "target_name": "image processing", "weight": 1.0, "year": 2019}, {"source": "6", "target": "83", "source_name": "parallel computing", "target_name": "graphics processing unit", "weight": 5.0, "year": 2019}, {"source": "6", "target": "86", "source_name": "parallel computing", "target_name": "graphical user interface", "weight": 1.0, "year": 2019}, {"source": "7", "target": "21", "source_name": "data acquisition", "target_name": "graphical interface", "weight": 1.0, "year": 2019}, {"source": "7", "target": "50", "source_name": "data acquisition", "target_name": "user interface", "weight": 3.0, "year": 2019}, {"source": "7", "target": "63", "source_name": "data acquisition", "target_name": "signal processing", "weight": 1.0, "year": 2019}, {"source": "7", "target": "65", "source_name": "data acquisition", "target_name": "programming language", "weight": 1.0, "year": 2019}, {"source": "7", "target": "67", "source_name": "data acquisition", "target_name": "image processing", "weight": 1.0, "year": 2019}, {"source": "7", "target": "86", "source_name": "data acquisition", "target_name": "graphical user interface", "weight": 2.0, "year": 2019}, {"source": "8", "target": "48", "source_name": "future directions", "target_name": "big data", "weight": 1.0, "year": 2019}, {"source": "8", "target": "50", "source_name": "future directions", "target_name": "user interface", "weight": 1.0, "year": 2019}, {"source": "8", "target": "59", "source_name": "future directions", "target_name": "machine learning", "weight": 1.0, "year": 2019}, {"source": "8", "target": "82", "source_name": "future directions", "target_name": "data mining", "weight": 1.0, "year": 2019}, {"source": "8", "target": "86", "source_name": "future directions", "target_name": "graphical user interface", "weight": 1.0, "year": 2019}, {"source": "9", "target": "21", "source_name": "object oriented", "target_name": "graphical interface", "weight": 1.0, "year": 2019}, {"source": "9", "target": "79", "source_name": "object oriented", "target_name": "geometric modeling", "weight": 1.0, "year": 2019}, {"source": "9", "target": "85", "source_name": "object oriented", "target_name": "artificial intelligence", "weight": 1.0, "year": 2019}, {"source": "10", "target": "12", "source_name": "mobile phone", "target_name": "graphics processor", "weight": 1.0, "year": 2019}, {"source": "10", "target": "21", "source_name": "mobile phone", "target_name": "graphical interface", "weight": 1.0, "year": 2019}, {"source": "10", "target": "39", "source_name": "mobile phone", "target_name": "display device", "weight": 1.0, "year": 2019}, {"source": "10", "target": "50", "source_name": "mobile phone", "target_name": "user interface", "weight": 2.0, "year": 2019}, {"source": "10", "target": "69", "source_name": "mobile phone", "target_name": "mobile devices", "weight": 4.0, "year": 2019}, {"source": "10", "target": "81", "source_name": "mobile phone", "target_name": "literature review", "weight": 1.0, "year": 2019}, {"source": "11", "target": "32", "source_name": "software engineering", "target_name": "open source", "weight": 1.0, "year": 2019}, {"source": "11", "target": "33", "source_name": "software engineering", "target_name": "parallel processing", "weight": 1.0, "year": 2019}, {"source": "11", "target": "36", "source_name": "software engineering", "target_name": "data visualization", "weight": 1.0, "year": 2019}, {"source": "11", "target": "43", "source_name": "software engineering", "target_name": "virtual reality", "weight": 1.0, "year": 2019}, {"source": "11", "target": "44", "source_name": "software engineering", "target_name": "source code", "weight": 2.0, "year": 2019}, {"source": "11", "target": "50", "source_name": "software engineering", "target_name": "user interface", "weight": 1.0, "year": 2019}, {"source": "11", "target": "51", "source_name": "software engineering", "target_name": "global illumination", "weight": 1.0, "year": 2019}, {"source": "11", "target": "52", "source_name": "software engineering", "target_name": "graphics cards", "weight": 2.0, "year": 2019}, {"source": "11", "target": "78", "source_name": "software engineering", "target_name": "ray tracing", "weight": 1.0, "year": 2019}, {"source": "12", "target": "33", "source_name": "graphics processor", "target_name": "parallel processing", "weight": 1.0, "year": 2019}, {"source": "12", "target": "43", "source_name": "graphics processor", "target_name": "virtual reality", "weight": 2.0, "year": 2019}, {"source": "12", "target": "52", "source_name": "graphics processor", "target_name": "graphics cards", "weight": 4.0, "year": 2019}, {"source": "12", "target": "60", "source_name": "graphics processor", "target_name": "floating point", "weight": 2.0, "year": 2019}, {"source": "12", "target": "64", "source_name": "graphics processor", "target_name": "scientific visualization", "weight": 1.0, "year": 2019}, {"source": "12", "target": "65", "source_name": "graphics processor", "target_name": "programming language", "weight": 3.0, "year": 2019}, {"source": "12", "target": "67", "source_name": "graphics processor", "target_name": "image processing", "weight": 2.0, "year": 2019}, {"source": "12", "target": "78", "source_name": "graphics processor", "target_name": "ray tracing", "weight": 1.0, "year": 2019}, {"source": "12", "target": "83", "source_name": "graphics processor", "target_name": "graphics processing unit", "weight": 3.0, "year": 2019}, {"source": "12", "target": "85", "source_name": "graphics processor", "target_name": "artificial intelligence", "weight": 1.0, "year": 2019}, {"source": "13", "target": "36", "source_name": "augmented reality", "target_name": "data visualization", "weight": 1.0, "year": 2019}, {"source": "13", "target": "43", "source_name": "augmented reality", "target_name": "virtual reality", "weight": 3.0, "year": 2019}, {"source": "13", "target": "45", "source_name": "augmented reality", "target_name": "international conference", "weight": 1.0, "year": 2019}, {"source": "13", "target": "50", "source_name": "augmented reality", "target_name": "user interface", "weight": 1.0, "year": 2019}, {"source": "13", "target": "56", "source_name": "augmented reality", "target_name": "google trends", "weight": 1.0, "year": 2019}, {"source": "13", "target": "67", "source_name": "augmented reality", "target_name": "image processing", "weight": 1.0, "year": 2019}, {"source": "13", "target": "82", "source_name": "augmented reality", "target_name": "data mining", "weight": 1.0, "year": 2019}, {"source": "14", "target": "36", "source_name": "human perception", "target_name": "data visualization", "weight": 1.0, "year": 2019}, {"source": "14", "target": "43", "source_name": "human perception", "target_name": "virtual reality", "weight": 2.0, "year": 2019}, {"source": "14", "target": "46", "source_name": "human perception", "target_name": "neural network", "weight": 1.0, "year": 2019}, {"source": "14", "target": "50", "source_name": "human perception", "target_name": "user interface", "weight": 2.0, "year": 2019}, {"source": "14", "target": "60", "source_name": "human perception", "target_name": "floating point", "weight": 2.0, "year": 2019}, {"source": "14", "target": "63", "source_name": "human perception", "target_name": "signal processing", "weight": 1.0, "year": 2019}, {"source": "14", "target": "71", "source_name": "human perception", "target_name": "embedded systems", "weight": 2.0, "year": 2019}, {"source": "14", "target": "80", "source_name": "human perception", "target_name": "virtual environments", "weight": 1.0, "year": 2019}, {"source": "14", "target": "86", "source_name": "human perception", "target_name": "graphical user interface", "weight": 1.0, "year": 2019}, {"source": "15", "target": "30", "source_name": "problem solving", "target_name": "graphic designer", "weight": 1.0, "year": 2019}, {"source": "15", "target": "47", "source_name": "problem solving", "target_name": "descriptive geometry", "weight": 1.0, "year": 2019}, {"source": "16", "target": "28", "source_name": "high school", "target_name": "current account", "weight": 1.0, "year": 2019}, {"source": "16", "target": "47", "source_name": "high school", "target_name": "descriptive geometry", "weight": 1.0, "year": 2019}, {"source": "16", "target": "49", "source_name": "high school", "target_name": "graphic arts", "weight": 1.0, "year": 2019}, {"source": "16", "target": "53", "source_name": "high school", "target_name": "graphic novels", "weight": 1.0, "year": 2019}, {"source": "16", "target": "70", "source_name": "high school", "target_name": "solid modeling", "weight": 1.0, "year": 2019}, {"source": "16", "target": "74", "source_name": "high school", "target_name": "united states", "weight": 1.0, "year": 2019}, {"source": "17", "target": "85", "source_name": "probabilistic graphical models", "target_name": "artificial intelligence", "weight": 1.0, "year": 2019}, {"source": "18", "target": "30", "source_name": "fine art", "target_name": "graphic designer", "weight": 1.0, "year": 2019}, {"source": "18", "target": "36", "source_name": "fine art", "target_name": "data visualization", "weight": 1.0, "year": 2019}, {"source": "18", "target": "49", "source_name": "fine art", "target_name": "graphic arts", "weight": 2.0, "year": 2019}, {"source": "18", "target": "66", "source_name": "fine art", "target_name": "traditional chinese", "weight": 1.0, "year": 2019}, {"source": "18", "target": "74", "source_name": "fine art", "target_name": "united states", "weight": 1.0, "year": 2019}, {"source": "20", "target": "29", "source_name": "higher education", "target_name": "teaching reform", "weight": 2.0, "year": 2019}, {"source": "20", "target": "30", "source_name": "higher education", "target_name": "graphic designer", "weight": 1.0, "year": 2019}, {"source": "20", "target": "47", "source_name": "higher education", "target_name": "descriptive geometry", "weight": 1.0, "year": 2019}, {"source": "20", "target": "53", "source_name": "higher education", "target_name": "graphic novels", "weight": 1.0, "year": 2019}, {"source": "21", "target": "23", "source_name": "graphical interface", "target_name": "modeling language", "weight": 1.0, "year": 2019}, {"source": "21", "target": "32", "source_name": "graphical interface", "target_name": "open source", "weight": 4.0, "year": 2019}, {"source": "21", "target": "36", "source_name": "graphical interface", "target_name": "data visualization", "weight": 1.0, "year": 2019}, {"source": "21", "target": "44", "source_name": "graphical interface", "target_name": "source code", "weight": 1.0, "year": 2019}, {"source": "21", "target": "46", "source_name": "graphical interface", "target_name": "neural network", "weight": 1.0, "year": 2019}, {"source": "21", "target": "50", "source_name": "graphical interface", "target_name": "user interface", "weight": 6.0, "year": 2019}, {"source": "21", "target": "62", "source_name": "graphical interface", "target_name": "pattern recognition", "weight": 1.0, "year": 2019}, {"source": "21", "target": "63", "source_name": "graphical interface", "target_name": "signal processing", "weight": 1.0, "year": 2019}, {"source": "21", "target": "65", "source_name": "graphical interface", "target_name": "programming language", "weight": 2.0, "year": 2019}, {"source": "21", "target": "69", "source_name": "graphical interface", "target_name": "mobile devices", "weight": 1.0, "year": 2019}, {"source": "21", "target": "85", "source_name": "graphical interface", "target_name": "artificial intelligence", "weight": 1.0, "year": 2019}, {"source": "21", "target": "86", "source_name": "graphical interface", "target_name": "graphical user interface", "weight": 8.0, "year": 2019}, {"source": "22", "target": "35", "source_name": "social media", "target_name": "statistical analysis", "weight": 1.0, "year": 2019}, {"source": "22", "target": "87", "source_name": "social media", "target_name": "graphic organizer", "weight": 1.0, "year": 2019}, {"source": "23", "target": "43", "source_name": "modeling language", "target_name": "virtual reality", "weight": 1.0, "year": 2019}, {"source": "23", "target": "50", "source_name": "modeling language", "target_name": "user interface", "weight": 1.0, "year": 2019}, {"source": "24", "target": "48", "source_name": "cloud computing", "target_name": "big data", "weight": 2.0, "year": 2019}, {"source": "24", "target": "50", "source_name": "cloud computing", "target_name": "user interface", "weight": 1.0, "year": 2019}, {"source": "24", "target": "59", "source_name": "cloud computing", "target_name": "machine learning", "weight": 1.0, "year": 2019}, {"source": "24", "target": "85", "source_name": "cloud computing", "target_name": "artificial intelligence", "weight": 1.0, "year": 2019}, {"source": "24", "target": "86", "source_name": "cloud computing", "target_name": "graphical user interface", "weight": 1.0, "year": 2019}, {"source": "26", "target": "53", "source_name": "comic book", "target_name": "graphic novels", "weight": 5.0, "year": 2019}, {"source": "26", "target": "74", "source_name": "comic book", "target_name": "united states", "weight": 1.0, "year": 2019}, {"source": "27", "target": "53", "source_name": "media literacy", "target_name": "graphic novels", "weight": 1.0, "year": 2019}, {"source": "29", "target": "79", "source_name": "teaching reform", "target_name": "geometric modeling", "weight": 1.0, "year": 2019}, {"source": "30", "target": "36", "source_name": "graphic designer", "target_name": "data visualization", "weight": 1.0, "year": 2019}, {"source": "30", "target": "38", "source_name": "graphic designer", "target_name": "vector graphics", "weight": 1.0, "year": 2019}, {"source": "30", "target": "42", "source_name": "graphic designer", "target_name": "line graph", "weight": 1.0, "year": 2019}, {"source": "30", "target": "49", "source_name": "graphic designer", "target_name": "graphic arts", "weight": 1.0, "year": 2019}, {"source": "30", "target": "61", "source_name": "graphic designer", "target_name": "hong kong", "weight": 1.0, "year": 2019}, {"source": "30", "target": "66", "source_name": "graphic designer", "target_name": "traditional chinese", "weight": 1.0, "year": 2019}, {"source": "30", "target": "74", "source_name": "graphic designer", "target_name": "united states", "weight": 1.0, "year": 2019}, {"source": "30", "target": "86", "source_name": "graphic designer", "target_name": "graphical user interface", "weight": 1.0, "year": 2019}, {"source": "31", "target": "37", "source_name": "magnetic field", "target_name": "eddy current", "weight": 1.0, "year": 2019}, {"source": "31", "target": "50", "source_name": "magnetic field", "target_name": "user interface", "weight": 1.0, "year": 2019}, {"source": "32", "target": "36", "source_name": "open source", "target_name": "data visualization", "weight": 1.0, "year": 2019}, {"source": "32", "target": "44", "source_name": "open source", "target_name": "source code", "weight": 1.0, "year": 2019}, {"source": "32", "target": "50", "source_name": "open source", "target_name": "user interface", "weight": 2.0, "year": 2019}, {"source": "32", "target": "62", "source_name": "open source", "target_name": "pattern recognition", "weight": 1.0, "year": 2019}, {"source": "32", "target": "63", "source_name": "open source", "target_name": "signal processing", "weight": 1.0, "year": 2019}, {"source": "32", "target": "65", "source_name": "open source", "target_name": "programming language", "weight": 1.0, "year": 2019}, {"source": "32", "target": "86", "source_name": "open source", "target_name": "graphical user interface", "weight": 3.0, "year": 2019}, {"source": "33", "target": "36", "source_name": "parallel processing", "target_name": "data visualization", "weight": 1.0, "year": 2019}, {"source": "33", "target": "43", "source_name": "parallel processing", "target_name": "virtual reality", "weight": 2.0, "year": 2019}, {"source": "33", "target": "51", "source_name": "parallel processing", "target_name": "global illumination", "weight": 1.0, "year": 2019}, {"source": "33", "target": "52", "source_name": "parallel processing", "target_name": "graphics cards", "weight": 1.0, "year": 2019}, {"source": "33", "target": "63", "source_name": "parallel processing", "target_name": "signal processing", "weight": 1.0, "year": 2019}, {"source": "33", "target": "67", "source_name": "parallel processing", "target_name": "image processing", "weight": 1.0, "year": 2019}, {"source": "33", "target": "78", "source_name": "parallel processing", "target_name": "ray tracing", "weight": 1.0, "year": 2019}, {"source": "33", "target": "83", "source_name": "parallel processing", "target_name": "graphics processing unit", "weight": 4.0, "year": 2019}, {"source": "33", "target": "86", "source_name": "parallel processing", "target_name": "graphical user interface", "weight": 1.0, "year": 2019}, {"source": "34", "target": "41", "source_name": "reading comprehension", "target_name": "efl learners", "weight": 1.0, "year": 2019}, {"source": "34", "target": "87", "source_name": "reading comprehension", "target_name": "graphic organizer", "weight": 2.0, "year": 2019}, {"source": "35", "target": "36", "source_name": "statistical analysis", "target_name": "data visualization", "weight": 1.0, "year": 2019}, {"source": "35", "target": "48", "source_name": "statistical analysis", "target_name": "big data", "weight": 1.0, "year": 2019}, {"source": "36", "target": "42", "source_name": "data visualization", "target_name": "line graph", "weight": 1.0, "year": 2019}, {"source": "36", "target": "43", "source_name": "data visualization", "target_name": "virtual reality", "weight": 1.0, "year": 2019}, {"source": "36", "target": "46", "source_name": "data visualization", "target_name": "neural network", "weight": 1.0, "year": 2019}, {"source": "36", "target": "48", "source_name": "data visualization", "target_name": "big data", "weight": 2.0, "year": 2019}, {"source": "36", "target": "50", "source_name": "data visualization", "target_name": "user interface", "weight": 3.0, "year": 2019}, {"source": "36", "target": "56", "source_name": "data visualization", "target_name": "google trends", "weight": 1.0, "year": 2019}, {"source": "36", "target": "62", "source_name": "data visualization", "target_name": "pattern recognition", "weight": 1.0, "year": 2019}, {"source": "36", "target": "63", "source_name": "data visualization", "target_name": "signal processing", "weight": 1.0, "year": 2019}, {"source": "36", "target": "64", "source_name": "data visualization", "target_name": "scientific visualization", "weight": 1.0, "year": 2019}, {"source": "36", "target": "69", "source_name": "data visualization", "target_name": "mobile devices", "weight": 1.0, "year": 2019}, {"source": "36", "target": "82", "source_name": "data visualization", "target_name": "data mining", "weight": 1.0, "year": 2019}, {"source": "37", "target": "50", "source_name": "eddy current", "target_name": "user interface", "weight": 1.0, "year": 2019}, {"source": "37", "target": "86", "source_name": "eddy current", "target_name": "graphical user interface", "weight": 1.0, "year": 2019}, {"source": "38", "target": "50", "source_name": "vector graphics", "target_name": "user interface", "weight": 2.0, "year": 2019}, {"source": "38", "target": "62", "source_name": "vector graphics", "target_name": "pattern recognition", "weight": 1.0, "year": 2019}, {"source": "38", "target": "73", "source_name": "vector graphics", "target_name": "engineering drawing", "weight": 1.0, "year": 2019}, {"source": "38", "target": "77", "source_name": "vector graphics", "target_name": "scalable vector graphics", "weight": 15.0, "year": 2019}, {"source": "38", "target": "78", "source_name": "vector graphics", "target_name": "ray tracing", "weight": 1.0, "year": 2019}, {"source": "38", "target": "86", "source_name": "vector graphics", "target_name": "graphical user interface", "weight": 1.0, "year": 2019}, {"source": "39", "target": "40", "source_name": "display device", "target_name": "frame buffer", "weight": 1.0, "year": 2019}, {"source": "39", "target": "50", "source_name": "display device", "target_name": "user interface", "weight": 5.0, "year": 2019}, {"source": "39", "target": "86", "source_name": "display device", "target_name": "graphical user interface", "weight": 2.0, "year": 2019}, {"source": "40", "target": "84", "source_name": "frame buffer", "target_name": "frame rate", "weight": 1.0, "year": 2019}, {"source": "41", "target": "87", "source_name": "efl learners", "target_name": "graphic organizer", "weight": 2.0, "year": 2019}, {"source": "42", "target": "68", "source_name": "line graph", "target_name": "digital library", "weight": 1.0, "year": 2019}, {"source": "43", "target": "45", "source_name": "virtual reality", "target_name": "international conference", "weight": 1.0, "year": 2019}, {"source": "43", "target": "47", "source_name": "virtual reality", "target_name": "descriptive geometry", "weight": 1.0, "year": 2019}, {"source": "43", "target": "50", "source_name": "virtual reality", "target_name": "user interface", "weight": 8.0, "year": 2019}, {"source": "43", "target": "51", "source_name": "virtual reality", "target_name": "global illumination", "weight": 1.0, "year": 2019}, {"source": "43", "target": "52", "source_name": "virtual reality", "target_name": "graphics cards", "weight": 1.0, "year": 2019}, {"source": "43", "target": "60", "source_name": "virtual reality", "target_name": "floating point", "weight": 2.0, "year": 2019}, {"source": "43", "target": "61", "source_name": "virtual reality", "target_name": "hong kong", "weight": 1.0, "year": 2019}, {"source": "43", "target": "62", "source_name": "virtual reality", "target_name": "pattern recognition", "weight": 1.0, "year": 2019}, {"source": "43", "target": "64", "source_name": "virtual reality", "target_name": "scientific visualization", "weight": 3.0, "year": 2019}, {"source": "43", "target": "65", "source_name": "virtual reality", "target_name": "programming language", "weight": 1.0, "year": 2019}, {"source": "43", "target": "67", "source_name": "virtual reality", "target_name": "image processing", "weight": 4.0, "year": 2019}, {"source": "43", "target": "71", "source_name": "virtual reality", "target_name": "embedded systems", "weight": 2.0, "year": 2019}, {"source": "43", "target": "78", "source_name": "virtual reality", "target_name": "ray tracing", "weight": 2.0, "year": 2019}, {"source": "43", "target": "80", "source_name": "virtual reality", "target_name": "virtual environments", "weight": 1.0, "year": 2019}, {"source": "43", "target": "83", "source_name": "virtual reality", "target_name": "graphics processing unit", "weight": 2.0, "year": 2019}, {"source": "43", "target": "85", "source_name": "virtual reality", "target_name": "artificial intelligence", "weight": 3.0, "year": 2019}, {"source": "43", "target": "86", "source_name": "virtual reality", "target_name": "graphical user interface", "weight": 1.0, "year": 2019}, {"source": "44", "target": "50", "source_name": "source code", "target_name": "user interface", "weight": 1.0, "year": 2019}, {"source": "44", "target": "65", "source_name": "source code", "target_name": "programming language", "weight": 1.0, "year": 2019}, {"source": "44", "target": "79", "source_name": "source code", "target_name": "geometric modeling", "weight": 1.0, "year": 2019}, {"source": "44", "target": "86", "source_name": "source code", "target_name": "graphical user interface", "weight": 2.0, "year": 2019}, {"source": "45", "target": "67", "source_name": "international conference", "target_name": "image processing", "weight": 2.0, "year": 2019}, {"source": "45", "target": "70", "source_name": "international conference", "target_name": "solid modeling", "weight": 2.0, "year": 2019}, {"source": "45", "target": "75", "source_name": "international conference", "target_name": "sustainable development", "weight": 1.0, "year": 2019}, {"source": "45", "target": "82", "source_name": "international conference", "target_name": "data mining", "weight": 1.0, "year": 2019}, {"source": "46", "target": "48", "source_name": "neural network", "target_name": "big data", "weight": 1.0, "year": 2019}, {"source": "46", "target": "52", "source_name": "neural network", "target_name": "graphics cards", "weight": 1.0, "year": 2019}, {"source": "46", "target": "59", "source_name": "neural network", "target_name": "machine learning", "weight": 1.0, "year": 2019}, {"source": "46", "target": "67", "source_name": "neural network", "target_name": "image processing", "weight": 1.0, "year": 2019}, {"source": "46", "target": "83", "source_name": "neural network", "target_name": "graphics processing unit", "weight": 1.0, "year": 2019}, {"source": "46", "target": "86", "source_name": "neural network", "target_name": "graphical user interface", "weight": 1.0, "year": 2019}, {"source": "47", "target": "64", "source_name": "descriptive geometry", "target_name": "scientific visualization", "weight": 1.0, "year": 2019}, {"source": "47", "target": "67", "source_name": "descriptive geometry", "target_name": "image processing", "weight": 1.0, "year": 2019}, {"source": "47", "target": "73", "source_name": "descriptive geometry", "target_name": "engineering drawing", "weight": 1.0, "year": 2019}, {"source": "48", "target": "50", "source_name": "big data", "target_name": "user interface", "weight": 1.0, "year": 2019}, {"source": "48", "target": "59", "source_name": "big data", "target_name": "machine learning", "weight": 1.0, "year": 2019}, {"source": "48", "target": "82", "source_name": "big data", "target_name": "data mining", "weight": 1.0, "year": 2019}, {"source": "48", "target": "85", "source_name": "big data", "target_name": "artificial intelligence", "weight": 1.0, "year": 2019}, {"source": "48", "target": "86", "source_name": "big data", "target_name": "graphical user interface", "weight": 1.0, "year": 2019}, {"source": "49", "target": "74", "source_name": "graphic arts", "target_name": "united states", "weight": 1.0, "year": 2019}, {"source": "50", "target": "59", "source_name": "user interface", "target_name": "machine learning", "weight": 2.0, "year": 2019}, {"source": "50", "target": "60", "source_name": "user interface", "target_name": "floating point", "weight": 2.0, "year": 2019}, {"source": "50", "target": "62", "source_name": "user interface", "target_name": "pattern recognition", "weight": 1.0, "year": 2019}, {"source": "50", "target": "69", "source_name": "user interface", "target_name": "mobile devices", "weight": 2.0, "year": 2019}, {"source": "50", "target": "71", "source_name": "user interface", "target_name": "embedded systems", "weight": 3.0, "year": 2019}, {"source": "50", "target": "73", "source_name": "user interface", "target_name": "engineering drawing", "weight": 1.0, "year": 2019}, {"source": "50", "target": "77", "source_name": "user interface", "target_name": "scalable vector graphics", "weight": 1.0, "year": 2019}, {"source": "50", "target": "78", "source_name": "user interface", "target_name": "ray tracing", "weight": 2.0, "year": 2019}, {"source": "50", "target": "82", "source_name": "user interface", "target_name": "data mining", "weight": 1.0, "year": 2019}, {"source": "50", "target": "83", "source_name": "user interface", "target_name": "graphics processing unit", "weight": 2.0, "year": 2019}, {"source": "50", "target": "84", "source_name": "user interface", "target_name": "frame rate", "weight": 1.0, "year": 2019}, {"source": "50", "target": "86", "source_name": "user interface", "target_name": "graphical user interface", "weight": 53.0, "year": 2019}, {"source": "51", "target": "52", "source_name": "global illumination", "target_name": "graphics cards", "weight": 1.0, "year": 2019}, {"source": "51", "target": "78", "source_name": "global illumination", "target_name": "ray tracing", "weight": 2.0, "year": 2019}, {"source": "51", "target": "79", "source_name": "global illumination", "target_name": "geometric modeling", "weight": 1.0, "year": 2019}, {"source": "52", "target": "60", "source_name": "graphics cards", "target_name": "floating point", "weight": 4.0, "year": 2019}, {"source": "52", "target": "64", "source_name": "graphics cards", "target_name": "scientific visualization", "weight": 1.0, "year": 2019}, {"source": "52", "target": "65", "source_name": "graphics cards", "target_name": "programming language", "weight": 1.0, "year": 2019}, {"source": "52", "target": "78", "source_name": "graphics cards", "target_name": "ray tracing", "weight": 1.0, "year": 2019}, {"source": "52", "target": "83", "source_name": "graphics cards", "target_name": "graphics processing unit", "weight": 7.0, "year": 2019}, {"source": "52", "target": "84", "source_name": "graphics cards", "target_name": "frame rate", "weight": 4.0, "year": 2019}, {"source": "53", "target": "72", "source_name": "graphic novels", "target_name": "public libraries", "weight": 1.0, "year": 2019}, {"source": "53", "target": "74", "source_name": "graphic novels", "target_name": "united states", "weight": 1.0, "year": 2019}, {"source": "58", "target": "66", "source_name": "chinese character", "target_name": "traditional chinese", "weight": 1.0, "year": 2019}, {"source": "59", "target": "82", "source_name": "machine learning", "target_name": "data mining", "weight": 3.0, "year": 2019}, {"source": "59", "target": "85", "source_name": "machine learning", "target_name": "artificial intelligence", "weight": 1.0, "year": 2019}, {"source": "59", "target": "86", "source_name": "machine learning", "target_name": "graphical user interface", "weight": 2.0, "year": 2019}, {"source": "60", "target": "67", "source_name": "floating point", "target_name": "image processing", "weight": 1.0, "year": 2019}, {"source": "60", "target": "71", "source_name": "floating point", "target_name": "embedded systems", "weight": 2.0, "year": 2019}, {"source": "62", "target": "63", "source_name": "pattern recognition", "target_name": "signal processing", "weight": 1.0, "year": 2019}, {"source": "62", "target": "67", "source_name": "pattern recognition", "target_name": "image processing", "weight": 3.0, "year": 2019}, {"source": "62", "target": "73", "source_name": "pattern recognition", "target_name": "engineering drawing", "weight": 2.0, "year": 2019}, {"source": "62", "target": "85", "source_name": "pattern recognition", "target_name": "artificial intelligence", "weight": 1.0, "year": 2019}, {"source": "63", "target": "67", "source_name": "signal processing", "target_name": "image processing", "weight": 1.0, "year": 2019}, {"source": "63", "target": "71", "source_name": "signal processing", "target_name": "embedded systems", "weight": 1.0, "year": 2019}, {"source": "63", "target": "83", "source_name": "signal processing", "target_name": "graphics processing unit", "weight": 1.0, "year": 2019}, {"source": "64", "target": "65", "source_name": "scientific visualization", "target_name": "programming language", "weight": 1.0, "year": 2019}, {"source": "64", "target": "67", "source_name": "scientific visualization", "target_name": "image processing", "weight": 1.0, "year": 2019}, {"source": "64", "target": "83", "source_name": "scientific visualization", "target_name": "graphics processing unit", "weight": 1.0, "year": 2019}, {"source": "65", "target": "67", "source_name": "programming language", "target_name": "image processing", "weight": 1.0, "year": 2019}, {"source": "65", "target": "78", "source_name": "programming language", "target_name": "ray tracing", "weight": 1.0, "year": 2019}, {"source": "65", "target": "79", "source_name": "programming language", "target_name": "geometric modeling", "weight": 1.0, "year": 2019}, {"source": "65", "target": "83", "source_name": "programming language", "target_name": "graphics processing unit", "weight": 3.0, "year": 2019}, {"source": "65", "target": "85", "source_name": "programming language", "target_name": "artificial intelligence", "weight": 1.0, "year": 2019}, {"source": "65", "target": "86", "source_name": "programming language", "target_name": "graphical user interface", "weight": 1.0, "year": 2019}, {"source": "67", "target": "70", "source_name": "image processing", "target_name": "solid modeling", "weight": 2.0, "year": 2019}, {"source": "67", "target": "78", "source_name": "image processing", "target_name": "ray tracing", "weight": 1.0, "year": 2019}, {"source": "67", "target": "83", "source_name": "image processing", "target_name": "graphics processing unit", "weight": 3.0, "year": 2019}, {"source": "67", "target": "85", "source_name": "image processing", "target_name": "artificial intelligence", "weight": 1.0, "year": 2019}, {"source": "68", "target": "74", "source_name": "digital library", "target_name": "united states", "weight": 1.0, "year": 2019}, {"source": "69", "target": "83", "source_name": "mobile devices", "target_name": "graphics processing unit", "weight": 1.0, "year": 2019}, {"source": "69", "target": "84", "source_name": "mobile devices", "target_name": "frame rate", "weight": 1.0, "year": 2019}, {"source": "69", "target": "85", "source_name": "mobile devices", "target_name": "artificial intelligence", "weight": 1.0, "year": 2019}, {"source": "70", "target": "74", "source_name": "solid modeling", "target_name": "united states", "weight": 1.0, "year": 2019}, {"source": "75", "target": "82", "source_name": "sustainable development", "target_name": "data mining", "weight": 1.0, "year": 2019}, {"source": "78", "target": "79", "source_name": "ray tracing", "target_name": "geometric modeling", "weight": 2.0, "year": 2019}, {"source": "78", "target": "83", "source_name": "ray tracing", "target_name": "graphics processing unit", "weight": 1.0, "year": 2019}, {"source": "78", "target": "86", "source_name": "ray tracing", "target_name": "graphical user interface", "weight": 1.0, "year": 2019}, {"source": "79", "target": "85", "source_name": "geometric modeling", "target_name": "artificial intelligence", "weight": 1.0, "year": 2019}, {"source": "80", "target": "83", "source_name": "virtual environments", "target_name": "graphics processing unit", "weight": 1.0, "year": 2019}, {"source": "80", "target": "85", "source_name": "virtual environments", "target_name": "artificial intelligence", "weight": 1.0, "year": 2019}, {"source": "82", "target": "85", "source_name": "data mining", "target_name": "artificial intelligence", "weight": 1.0, "year": 2019}, {"source": "82", "target": "86", "source_name": "data mining", "target_name": "graphical user interface", "weight": 1.0, "year": 2019}, {"source": "83", "target": "84", "source_name": "graphics processing unit", "target_name": "frame rate", "weight": 4.0, "year": 2019}, {"source": "85", "target": "86", "source_name": "artificial intelligence", "target_name": "graphical user interface", "weight": 1.0, "year": 2019}]}, {"2020": [{"source": "0", "target": "3", "source_name": "annual rainfall", "target_name": "statistical methods", "weight": 1.0, "year": 2020}, {"source": "0", "target": "4", "source_name": "annual rainfall", "target_name": "water resources", "weight": 3.0, "year": 2020}, {"source": "0", "target": "35", "source_name": "annual rainfall", "target_name": "statistical analysis", "weight": 1.0, "year": 2020}, {"source": "0", "target": "75", "source_name": "annual rainfall", "target_name": "sustainable development", "weight": 1.0, "year": 2020}, {"source": "1", "target": "2", "source_name": "web page", "target_name": "visual communication", "weight": 1.0, "year": 2020}, {"source": "1", "target": "18", "source_name": "web page", "target_name": "fine art", "weight": 1.0, "year": 2020}, {"source": "1", "target": "30", "source_name": "web page", "target_name": "graphic designer", "weight": 1.0, "year": 2020}, {"source": "1", "target": "36", "source_name": "web page", "target_name": "data visualization", "weight": 1.0, "year": 2020}, {"source": "1", "target": "38", "source_name": "web page", "target_name": "vector graphics", "weight": 1.0, "year": 2020}, {"source": "1", "target": "49", "source_name": "web page", "target_name": "graphic arts", "weight": 1.0, "year": 2020}, {"source": "1", "target": "50", "source_name": "web page", "target_name": "user interface", "weight": 1.0, "year": 2020}, {"source": "1", "target": "74", "source_name": "web page", "target_name": "united states", "weight": 1.0, "year": 2020}, {"source": "1", "target": "77", "source_name": "web page", "target_name": "scalable vector graphics", "weight": 1.0, "year": 2020}, {"source": "1", "target": "82", "source_name": "web page", "target_name": "data mining", "weight": 1.0, "year": 2020}, {"source": "1", "target": "84", "source_name": "web page", "target_name": "frame rate", "weight": 1.0, "year": 2020}, {"source": "1", "target": "86", "source_name": "web page", "target_name": "graphical user interface", "weight": 1.0, "year": 2020}, {"source": "2", "target": "10", "source_name": "visual communication", "target_name": "mobile phone", "weight": 1.0, "year": 2020}, {"source": "2", "target": "15", "source_name": "visual communication", "target_name": "problem solving", "weight": 1.0, "year": 2020}, {"source": "2", "target": "18", "source_name": "visual communication", "target_name": "fine art", "weight": 1.0, "year": 2020}, {"source": "2", "target": "20", "source_name": "visual communication", "target_name": "higher education", "weight": 2.0, "year": 2020}, {"source": "2", "target": "30", "source_name": "visual communication", "target_name": "graphic designer", "weight": 3.0, "year": 2020}, {"source": "2", "target": "39", "source_name": "visual communication", "target_name": "display device", "weight": 1.0, "year": 2020}, {"source": "2", "target": "49", "source_name": "visual communication", "target_name": "graphic arts", "weight": 1.0, "year": 2020}, {"source": "2", "target": "50", "source_name": "visual communication", "target_name": "user interface", "weight": 2.0, "year": 2020}, {"source": "2", "target": "58", "source_name": "visual communication", "target_name": "chinese character", "weight": 2.0, "year": 2020}, {"source": "2", "target": "74", "source_name": "visual communication", "target_name": "united states", "weight": 1.0, "year": 2020}, {"source": "2", "target": "86", "source_name": "visual communication", "target_name": "graphical user interface", "weight": 1.0, "year": 2020}, {"source": "3", "target": "63", "source_name": "statistical methods", "target_name": "signal processing", "weight": 1.0, "year": 2020}, {"source": "3", "target": "67", "source_name": "statistical methods", "target_name": "image processing", "weight": 1.0, "year": 2020}, {"source": "3", "target": "82", "source_name": "statistical methods", "target_name": "data mining", "weight": 1.0, "year": 2020}, {"source": "4", "target": "48", "source_name": "water resources", "target_name": "big data", "weight": 1.0, "year": 2020}, {"source": "4", "target": "54", "source_name": "water resources", "target_name": "climate change", "weight": 2.0, "year": 2020}, {"source": "4", "target": "75", "source_name": "water resources", "target_name": "sustainable development", "weight": 1.0, "year": 2020}, {"source": "5", "target": "30", "source_name": "fashion design", "target_name": "graphic designer", "weight": 1.0, "year": 2020}, {"source": "6", "target": "12", "source_name": "parallel computing", "target_name": "graphics processor", "weight": 3.0, "year": 2020}, {"source": "6", "target": "33", "source_name": "parallel computing", "target_name": "parallel processing", "weight": 1.0, "year": 2020}, {"source": "6", "target": "36", "source_name": "parallel computing", "target_name": "data visualization", "weight": 1.0, "year": 2020}, {"source": "6", "target": "37", "source_name": "parallel computing", "target_name": "eddy current", "weight": 1.0, "year": 2020}, {"source": "6", "target": "50", "source_name": "parallel computing", "target_name": "user interface", "weight": 1.0, "year": 2020}, {"source": "6", "target": "52", "source_name": "parallel computing", "target_name": "graphics cards", "weight": 2.0, "year": 2020}, {"source": "6", "target": "60", "source_name": "parallel computing", "target_name": "floating point", "weight": 1.0, "year": 2020}, {"source": "6", "target": "64", "source_name": "parallel computing", "target_name": "scientific visualization", "weight": 1.0, "year": 2020}, {"source": "6", "target": "67", "source_name": "parallel computing", "target_name": "image processing", "weight": 1.0, "year": 2020}, {"source": "6", "target": "83", "source_name": "parallel computing", "target_name": "graphics processing unit", "weight": 5.0, "year": 2020}, {"source": "6", "target": "86", "source_name": "parallel computing", "target_name": "graphical user interface", "weight": 1.0, "year": 2020}, {"source": "7", "target": "21", "source_name": "data acquisition", "target_name": "graphical interface", "weight": 1.0, "year": 2020}, {"source": "7", "target": "50", "source_name": "data acquisition", "target_name": "user interface", "weight": 3.0, "year": 2020}, {"source": "7", "target": "63", "source_name": "data acquisition", "target_name": "signal processing", "weight": 1.0, "year": 2020}, {"source": "7", "target": "65", "source_name": "data acquisition", "target_name": "programming language", "weight": 1.0, "year": 2020}, {"source": "7", "target": "67", "source_name": "data acquisition", "target_name": "image processing", "weight": 1.0, "year": 2020}, {"source": "7", "target": "86", "source_name": "data acquisition", "target_name": "graphical user interface", "weight": 2.0, "year": 2020}, {"source": "8", "target": "43", "source_name": "future directions", "target_name": "virtual reality", "weight": 1.0, "year": 2020}, {"source": "8", "target": "48", "source_name": "future directions", "target_name": "big data", "weight": 1.0, "year": 2020}, {"source": "8", "target": "50", "source_name": "future directions", "target_name": "user interface", "weight": 1.0, "year": 2020}, {"source": "8", "target": "59", "source_name": "future directions", "target_name": "machine learning", "weight": 1.0, "year": 2020}, {"source": "8", "target": "64", "source_name": "future directions", "target_name": "scientific visualization", "weight": 1.0, "year": 2020}, {"source": "8", "target": "82", "source_name": "future directions", "target_name": "data mining", "weight": 1.0, "year": 2020}, {"source": "8", "target": "86", "source_name": "future directions", "target_name": "graphical user interface", "weight": 1.0, "year": 2020}, {"source": "9", "target": "21", "source_name": "object oriented", "target_name": "graphical interface", "weight": 1.0, "year": 2020}, {"source": "9", "target": "79", "source_name": "object oriented", "target_name": "geometric modeling", "weight": 1.0, "year": 2020}, {"source": "9", "target": "85", "source_name": "object oriented", "target_name": "artificial intelligence", "weight": 1.0, "year": 2020}, {"source": "10", "target": "12", "source_name": "mobile phone", "target_name": "graphics processor", "weight": 1.0, "year": 2020}, {"source": "10", "target": "21", "source_name": "mobile phone", "target_name": "graphical interface", "weight": 1.0, "year": 2020}, {"source": "10", "target": "39", "source_name": "mobile phone", "target_name": "display device", "weight": 1.0, "year": 2020}, {"source": "10", "target": "50", "source_name": "mobile phone", "target_name": "user interface", "weight": 2.0, "year": 2020}, {"source": "10", "target": "69", "source_name": "mobile phone", "target_name": "mobile devices", "weight": 4.0, "year": 2020}, {"source": "10", "target": "81", "source_name": "mobile phone", "target_name": "literature review", "weight": 1.0, "year": 2020}, {"source": "11", "target": "32", "source_name": "software engineering", "target_name": "open source", "weight": 1.0, "year": 2020}, {"source": "11", "target": "33", "source_name": "software engineering", "target_name": "parallel processing", "weight": 1.0, "year": 2020}, {"source": "11", "target": "36", "source_name": "software engineering", "target_name": "data visualization", "weight": 1.0, "year": 2020}, {"source": "11", "target": "43", "source_name": "software engineering", "target_name": "virtual reality", "weight": 1.0, "year": 2020}, {"source": "11", "target": "44", "source_name": "software engineering", "target_name": "source code", "weight": 2.0, "year": 2020}, {"source": "11", "target": "50", "source_name": "software engineering", "target_name": "user interface", "weight": 1.0, "year": 2020}, {"source": "11", "target": "51", "source_name": "software engineering", "target_name": "global illumination", "weight": 1.0, "year": 2020}, {"source": "11", "target": "52", "source_name": "software engineering", "target_name": "graphics cards", "weight": 2.0, "year": 2020}, {"source": "11", "target": "78", "source_name": "software engineering", "target_name": "ray tracing", "weight": 1.0, "year": 2020}, {"source": "12", "target": "33", "source_name": "graphics processor", "target_name": "parallel processing", "weight": 1.0, "year": 2020}, {"source": "12", "target": "43", "source_name": "graphics processor", "target_name": "virtual reality", "weight": 2.0, "year": 2020}, {"source": "12", "target": "52", "source_name": "graphics processor", "target_name": "graphics cards", "weight": 4.0, "year": 2020}, {"source": "12", "target": "60", "source_name": "graphics processor", "target_name": "floating point", "weight": 2.0, "year": 2020}, {"source": "12", "target": "64", "source_name": "graphics processor", "target_name": "scientific visualization", "weight": 1.0, "year": 2020}, {"source": "12", "target": "65", "source_name": "graphics processor", "target_name": "programming language", "weight": 3.0, "year": 2020}, {"source": "12", "target": "67", "source_name": "graphics processor", "target_name": "image processing", "weight": 2.0, "year": 2020}, {"source": "12", "target": "78", "source_name": "graphics processor", "target_name": "ray tracing", "weight": 1.0, "year": 2020}, {"source": "12", "target": "83", "source_name": "graphics processor", "target_name": "graphics processing unit", "weight": 3.0, "year": 2020}, {"source": "12", "target": "85", "source_name": "graphics processor", "target_name": "artificial intelligence", "weight": 1.0, "year": 2020}, {"source": "13", "target": "36", "source_name": "augmented reality", "target_name": "data visualization", "weight": 1.0, "year": 2020}, {"source": "13", "target": "43", "source_name": "augmented reality", "target_name": "virtual reality", "weight": 3.0, "year": 2020}, {"source": "13", "target": "45", "source_name": "augmented reality", "target_name": "international conference", "weight": 1.0, "year": 2020}, {"source": "13", "target": "50", "source_name": "augmented reality", "target_name": "user interface", "weight": 1.0, "year": 2020}, {"source": "13", "target": "56", "source_name": "augmented reality", "target_name": "google trends", "weight": 1.0, "year": 2020}, {"source": "13", "target": "59", "source_name": "augmented reality", "target_name": "machine learning", "weight": 1.0, "year": 2020}, {"source": "13", "target": "67", "source_name": "augmented reality", "target_name": "image processing", "weight": 1.0, "year": 2020}, {"source": "13", "target": "82", "source_name": "augmented reality", "target_name": "data mining", "weight": 1.0, "year": 2020}, {"source": "14", "target": "36", "source_name": "human perception", "target_name": "data visualization", "weight": 1.0, "year": 2020}, {"source": "14", "target": "43", "source_name": "human perception", "target_name": "virtual reality", "weight": 2.0, "year": 2020}, {"source": "14", "target": "46", "source_name": "human perception", "target_name": "neural network", "weight": 1.0, "year": 2020}, {"source": "14", "target": "50", "source_name": "human perception", "target_name": "user interface", "weight": 2.0, "year": 2020}, {"source": "14", "target": "60", "source_name": "human perception", "target_name": "floating point", "weight": 2.0, "year": 2020}, {"source": "14", "target": "63", "source_name": "human perception", "target_name": "signal processing", "weight": 1.0, "year": 2020}, {"source": "14", "target": "71", "source_name": "human perception", "target_name": "embedded systems", "weight": 2.0, "year": 2020}, {"source": "14", "target": "80", "source_name": "human perception", "target_name": "virtual environments", "weight": 1.0, "year": 2020}, {"source": "14", "target": "86", "source_name": "human perception", "target_name": "graphical user interface", "weight": 1.0, "year": 2020}, {"source": "15", "target": "30", "source_name": "problem solving", "target_name": "graphic designer", "weight": 1.0, "year": 2020}, {"source": "15", "target": "47", "source_name": "problem solving", "target_name": "descriptive geometry", "weight": 1.0, "year": 2020}, {"source": "16", "target": "28", "source_name": "high school", "target_name": "current account", "weight": 1.0, "year": 2020}, {"source": "16", "target": "47", "source_name": "high school", "target_name": "descriptive geometry", "weight": 1.0, "year": 2020}, {"source": "16", "target": "49", "source_name": "high school", "target_name": "graphic arts", "weight": 1.0, "year": 2020}, {"source": "16", "target": "53", "source_name": "high school", "target_name": "graphic novels", "weight": 1.0, "year": 2020}, {"source": "16", "target": "70", "source_name": "high school", "target_name": "solid modeling", "weight": 1.0, "year": 2020}, {"source": "16", "target": "74", "source_name": "high school", "target_name": "united states", "weight": 1.0, "year": 2020}, {"source": "17", "target": "85", "source_name": "probabilistic graphical models", "target_name": "artificial intelligence", "weight": 1.0, "year": 2020}, {"source": "18", "target": "30", "source_name": "fine art", "target_name": "graphic designer", "weight": 1.0, "year": 2020}, {"source": "18", "target": "36", "source_name": "fine art", "target_name": "data visualization", "weight": 1.0, "year": 2020}, {"source": "18", "target": "49", "source_name": "fine art", "target_name": "graphic arts", "weight": 2.0, "year": 2020}, {"source": "18", "target": "66", "source_name": "fine art", "target_name": "traditional chinese", "weight": 1.0, "year": 2020}, {"source": "18", "target": "74", "source_name": "fine art", "target_name": "united states", "weight": 1.0, "year": 2020}, {"source": "20", "target": "29", "source_name": "higher education", "target_name": "teaching reform", "weight": 2.0, "year": 2020}, {"source": "20", "target": "30", "source_name": "higher education", "target_name": "graphic designer", "weight": 1.0, "year": 2020}, {"source": "20", "target": "47", "source_name": "higher education", "target_name": "descriptive geometry", "weight": 1.0, "year": 2020}, {"source": "20", "target": "53", "source_name": "higher education", "target_name": "graphic novels", "weight": 1.0, "year": 2020}, {"source": "21", "target": "23", "source_name": "graphical interface", "target_name": "modeling language", "weight": 1.0, "year": 2020}, {"source": "21", "target": "32", "source_name": "graphical interface", "target_name": "open source", "weight": 4.0, "year": 2020}, {"source": "21", "target": "36", "source_name": "graphical interface", "target_name": "data visualization", "weight": 1.0, "year": 2020}, {"source": "21", "target": "44", "source_name": "graphical interface", "target_name": "source code", "weight": 1.0, "year": 2020}, {"source": "21", "target": "46", "source_name": "graphical interface", "target_name": "neural network", "weight": 1.0, "year": 2020}, {"source": "21", "target": "50", "source_name": "graphical interface", "target_name": "user interface", "weight": 6.0, "year": 2020}, {"source": "21", "target": "62", "source_name": "graphical interface", "target_name": "pattern recognition", "weight": 1.0, "year": 2020}, {"source": "21", "target": "63", "source_name": "graphical interface", "target_name": "signal processing", "weight": 1.0, "year": 2020}, {"source": "21", "target": "65", "source_name": "graphical interface", "target_name": "programming language", "weight": 3.0, "year": 2020}, {"source": "21", "target": "69", "source_name": "graphical interface", "target_name": "mobile devices", "weight": 1.0, "year": 2020}, {"source": "21", "target": "85", "source_name": "graphical interface", "target_name": "artificial intelligence", "weight": 1.0, "year": 2020}, {"source": "21", "target": "86", "source_name": "graphical interface", "target_name": "graphical user interface", "weight": 8.0, "year": 2020}, {"source": "22", "target": "35", "source_name": "social media", "target_name": "statistical analysis", "weight": 1.0, "year": 2020}, {"source": "22", "target": "87", "source_name": "social media", "target_name": "graphic organizer", "weight": 1.0, "year": 2020}, {"source": "23", "target": "43", "source_name": "modeling language", "target_name": "virtual reality", "weight": 1.0, "year": 2020}, {"source": "23", "target": "50", "source_name": "modeling language", "target_name": "user interface", "weight": 1.0, "year": 2020}, {"source": "24", "target": "48", "source_name": "cloud computing", "target_name": "big data", "weight": 2.0, "year": 2020}, {"source": "24", "target": "50", "source_name": "cloud computing", "target_name": "user interface", "weight": 1.0, "year": 2020}, {"source": "24", "target": "59", "source_name": "cloud computing", "target_name": "machine learning", "weight": 1.0, "year": 2020}, {"source": "24", "target": "85", "source_name": "cloud computing", "target_name": "artificial intelligence", "weight": 1.0, "year": 2020}, {"source": "24", "target": "86", "source_name": "cloud computing", "target_name": "graphical user interface", "weight": 1.0, "year": 2020}, {"source": "26", "target": "53", "source_name": "comic book", "target_name": "graphic novels", "weight": 6.0, "year": 2020}, {"source": "26", "target": "74", "source_name": "comic book", "target_name": "united states", "weight": 1.0, "year": 2020}, {"source": "27", "target": "53", "source_name": "media literacy", "target_name": "graphic novels", "weight": 1.0, "year": 2020}, {"source": "28", "target": "76", "source_name": "current account", "target_name": "exchange rate", "weight": 1.0, "year": 2020}, {"source": "29", "target": "79", "source_name": "teaching reform", "target_name": "geometric modeling", "weight": 1.0, "year": 2020}, {"source": "30", "target": "36", "source_name": "graphic designer", "target_name": "data visualization", "weight": 1.0, "year": 2020}, {"source": "30", "target": "38", "source_name": "graphic designer", "target_name": "vector graphics", "weight": 1.0, "year": 2020}, {"source": "30", "target": "42", "source_name": "graphic designer", "target_name": "line graph", "weight": 1.0, "year": 2020}, {"source": "30", "target": "49", "source_name": "graphic designer", "target_name": "graphic arts", "weight": 1.0, "year": 2020}, {"source": "30", "target": "61", "source_name": "graphic designer", "target_name": "hong kong", "weight": 1.0, "year": 2020}, {"source": "30", "target": "66", "source_name": "graphic designer", "target_name": "traditional chinese", "weight": 1.0, "year": 2020}, {"source": "30", "target": "74", "source_name": "graphic designer", "target_name": "united states", "weight": 1.0, "year": 2020}, {"source": "30", "target": "86", "source_name": "graphic designer", "target_name": "graphical user interface", "weight": 1.0, "year": 2020}, {"source": "31", "target": "37", "source_name": "magnetic field", "target_name": "eddy current", "weight": 1.0, "year": 2020}, {"source": "31", "target": "50", "source_name": "magnetic field", "target_name": "user interface", "weight": 1.0, "year": 2020}, {"source": "32", "target": "36", "source_name": "open source", "target_name": "data visualization", "weight": 1.0, "year": 2020}, {"source": "32", "target": "44", "source_name": "open source", "target_name": "source code", "weight": 1.0, "year": 2020}, {"source": "32", "target": "50", "source_name": "open source", "target_name": "user interface", "weight": 2.0, "year": 2020}, {"source": "32", "target": "62", "source_name": "open source", "target_name": "pattern recognition", "weight": 1.0, "year": 2020}, {"source": "32", "target": "63", "source_name": "open source", "target_name": "signal processing", "weight": 1.0, "year": 2020}, {"source": "32", "target": "65", "source_name": "open source", "target_name": "programming language", "weight": 1.0, "year": 2020}, {"source": "32", "target": "86", "source_name": "open source", "target_name": "graphical user interface", "weight": 3.0, "year": 2020}, {"source": "33", "target": "36", "source_name": "parallel processing", "target_name": "data visualization", "weight": 1.0, "year": 2020}, {"source": "33", "target": "43", "source_name": "parallel processing", "target_name": "virtual reality", "weight": 2.0, "year": 2020}, {"source": "33", "target": "51", "source_name": "parallel processing", "target_name": "global illumination", "weight": 1.0, "year": 2020}, {"source": "33", "target": "52", "source_name": "parallel processing", "target_name": "graphics cards", "weight": 1.0, "year": 2020}, {"source": "33", "target": "63", "source_name": "parallel processing", "target_name": "signal processing", "weight": 1.0, "year": 2020}, {"source": "33", "target": "67", "source_name": "parallel processing", "target_name": "image processing", "weight": 1.0, "year": 2020}, {"source": "33", "target": "78", "source_name": "parallel processing", "target_name": "ray tracing", "weight": 1.0, "year": 2020}, {"source": "33", "target": "83", "source_name": "parallel processing", "target_name": "graphics processing unit", "weight": 4.0, "year": 2020}, {"source": "33", "target": "86", "source_name": "parallel processing", "target_name": "graphical user interface", "weight": 1.0, "year": 2020}, {"source": "34", "target": "41", "source_name": "reading comprehension", "target_name": "efl learners", "weight": 1.0, "year": 2020}, {"source": "34", "target": "87", "source_name": "reading comprehension", "target_name": "graphic organizer", "weight": 2.0, "year": 2020}, {"source": "35", "target": "36", "source_name": "statistical analysis", "target_name": "data visualization", "weight": 1.0, "year": 2020}, {"source": "35", "target": "48", "source_name": "statistical analysis", "target_name": "big data", "weight": 1.0, "year": 2020}, {"source": "36", "target": "42", "source_name": "data visualization", "target_name": "line graph", "weight": 1.0, "year": 2020}, {"source": "36", "target": "43", "source_name": "data visualization", "target_name": "virtual reality", "weight": 1.0, "year": 2020}, {"source": "36", "target": "46", "source_name": "data visualization", "target_name": "neural network", "weight": 1.0, "year": 2020}, {"source": "36", "target": "48", "source_name": "data visualization", "target_name": "big data", "weight": 2.0, "year": 2020}, {"source": "36", "target": "50", "source_name": "data visualization", "target_name": "user interface", "weight": 3.0, "year": 2020}, {"source": "36", "target": "56", "source_name": "data visualization", "target_name": "google trends", "weight": 1.0, "year": 2020}, {"source": "36", "target": "62", "source_name": "data visualization", "target_name": "pattern recognition", "weight": 1.0, "year": 2020}, {"source": "36", "target": "63", "source_name": "data visualization", "target_name": "signal processing", "weight": 1.0, "year": 2020}, {"source": "36", "target": "64", "source_name": "data visualization", "target_name": "scientific visualization", "weight": 1.0, "year": 2020}, {"source": "36", "target": "69", "source_name": "data visualization", "target_name": "mobile devices", "weight": 1.0, "year": 2020}, {"source": "36", "target": "82", "source_name": "data visualization", "target_name": "data mining", "weight": 1.0, "year": 2020}, {"source": "37", "target": "50", "source_name": "eddy current", "target_name": "user interface", "weight": 1.0, "year": 2020}, {"source": "37", "target": "86", "source_name": "eddy current", "target_name": "graphical user interface", "weight": 1.0, "year": 2020}, {"source": "38", "target": "50", "source_name": "vector graphics", "target_name": "user interface", "weight": 2.0, "year": 2020}, {"source": "38", "target": "62", "source_name": "vector graphics", "target_name": "pattern recognition", "weight": 1.0, "year": 2020}, {"source": "38", "target": "73", "source_name": "vector graphics", "target_name": "engineering drawing", "weight": 1.0, "year": 2020}, {"source": "38", "target": "77", "source_name": "vector graphics", "target_name": "scalable vector graphics", "weight": 15.0, "year": 2020}, {"source": "38", "target": "78", "source_name": "vector graphics", "target_name": "ray tracing", "weight": 1.0, "year": 2020}, {"source": "38", "target": "86", "source_name": "vector graphics", "target_name": "graphical user interface", "weight": 1.0, "year": 2020}, {"source": "39", "target": "40", "source_name": "display device", "target_name": "frame buffer", "weight": 1.0, "year": 2020}, {"source": "39", "target": "50", "source_name": "display device", "target_name": "user interface", "weight": 5.0, "year": 2020}, {"source": "39", "target": "86", "source_name": "display device", "target_name": "graphical user interface", "weight": 2.0, "year": 2020}, {"source": "40", "target": "84", "source_name": "frame buffer", "target_name": "frame rate", "weight": 1.0, "year": 2020}, {"source": "41", "target": "87", "source_name": "efl learners", "target_name": "graphic organizer", "weight": 2.0, "year": 2020}, {"source": "42", "target": "68", "source_name": "line graph", "target_name": "digital library", "weight": 1.0, "year": 2020}, {"source": "43", "target": "45", "source_name": "virtual reality", "target_name": "international conference", "weight": 1.0, "year": 2020}, {"source": "43", "target": "47", "source_name": "virtual reality", "target_name": "descriptive geometry", "weight": 1.0, "year": 2020}, {"source": "43", "target": "50", "source_name": "virtual reality", "target_name": "user interface", "weight": 8.0, "year": 2020}, {"source": "43", "target": "51", "source_name": "virtual reality", "target_name": "global illumination", "weight": 1.0, "year": 2020}, {"source": "43", "target": "52", "source_name": "virtual reality", "target_name": "graphics cards", "weight": 1.0, "year": 2020}, {"source": "43", "target": "60", "source_name": "virtual reality", "target_name": "floating point", "weight": 2.0, "year": 2020}, {"source": "43", "target": "61", "source_name": "virtual reality", "target_name": "hong kong", "weight": 1.0, "year": 2020}, {"source": "43", "target": "62", "source_name": "virtual reality", "target_name": "pattern recognition", "weight": 1.0, "year": 2020}, {"source": "43", "target": "64", "source_name": "virtual reality", "target_name": "scientific visualization", "weight": 4.0, "year": 2020}, {"source": "43", "target": "65", "source_name": "virtual reality", "target_name": "programming language", "weight": 1.0, "year": 2020}, {"source": "43", "target": "67", "source_name": "virtual reality", "target_name": "image processing", "weight": 4.0, "year": 2020}, {"source": "43", "target": "71", "source_name": "virtual reality", "target_name": "embedded systems", "weight": 2.0, "year": 2020}, {"source": "43", "target": "78", "source_name": "virtual reality", "target_name": "ray tracing", "weight": 2.0, "year": 2020}, {"source": "43", "target": "80", "source_name": "virtual reality", "target_name": "virtual environments", "weight": 1.0, "year": 2020}, {"source": "43", "target": "83", "source_name": "virtual reality", "target_name": "graphics processing unit", "weight": 2.0, "year": 2020}, {"source": "43", "target": "85", "source_name": "virtual reality", "target_name": "artificial intelligence", "weight": 3.0, "year": 2020}, {"source": "43", "target": "86", "source_name": "virtual reality", "target_name": "graphical user interface", "weight": 1.0, "year": 2020}, {"source": "44", "target": "50", "source_name": "source code", "target_name": "user interface", "weight": 1.0, "year": 2020}, {"source": "44", "target": "65", "source_name": "source code", "target_name": "programming language", "weight": 1.0, "year": 2020}, {"source": "44", "target": "79", "source_name": "source code", "target_name": "geometric modeling", "weight": 1.0, "year": 2020}, {"source": "44", "target": "86", "source_name": "source code", "target_name": "graphical user interface", "weight": 2.0, "year": 2020}, {"source": "45", "target": "67", "source_name": "international conference", "target_name": "image processing", "weight": 2.0, "year": 2020}, {"source": "45", "target": "70", "source_name": "international conference", "target_name": "solid modeling", "weight": 2.0, "year": 2020}, {"source": "45", "target": "75", "source_name": "international conference", "target_name": "sustainable development", "weight": 1.0, "year": 2020}, {"source": "45", "target": "82", "source_name": "international conference", "target_name": "data mining", "weight": 1.0, "year": 2020}, {"source": "46", "target": "48", "source_name": "neural network", "target_name": "big data", "weight": 1.0, "year": 2020}, {"source": "46", "target": "52", "source_name": "neural network", "target_name": "graphics cards", "weight": 1.0, "year": 2020}, {"source": "46", "target": "59", "source_name": "neural network", "target_name": "machine learning", "weight": 1.0, "year": 2020}, {"source": "46", "target": "67", "source_name": "neural network", "target_name": "image processing", "weight": 1.0, "year": 2020}, {"source": "46", "target": "83", "source_name": "neural network", "target_name": "graphics processing unit", "weight": 1.0, "year": 2020}, {"source": "46", "target": "86", "source_name": "neural network", "target_name": "graphical user interface", "weight": 1.0, "year": 2020}, {"source": "47", "target": "64", "source_name": "descriptive geometry", "target_name": "scientific visualization", "weight": 1.0, "year": 2020}, {"source": "47", "target": "67", "source_name": "descriptive geometry", "target_name": "image processing", "weight": 1.0, "year": 2020}, {"source": "47", "target": "73", "source_name": "descriptive geometry", "target_name": "engineering drawing", "weight": 1.0, "year": 2020}, {"source": "48", "target": "50", "source_name": "big data", "target_name": "user interface", "weight": 1.0, "year": 2020}, {"source": "48", "target": "59", "source_name": "big data", "target_name": "machine learning", "weight": 1.0, "year": 2020}, {"source": "48", "target": "82", "source_name": "big data", "target_name": "data mining", "weight": 1.0, "year": 2020}, {"source": "48", "target": "85", "source_name": "big data", "target_name": "artificial intelligence", "weight": 1.0, "year": 2020}, {"source": "48", "target": "86", "source_name": "big data", "target_name": "graphical user interface", "weight": 1.0, "year": 2020}, {"source": "49", "target": "74", "source_name": "graphic arts", "target_name": "united states", "weight": 1.0, "year": 2020}, {"source": "50", "target": "59", "source_name": "user interface", "target_name": "machine learning", "weight": 2.0, "year": 2020}, {"source": "50", "target": "60", "source_name": "user interface", "target_name": "floating point", "weight": 2.0, "year": 2020}, {"source": "50", "target": "62", "source_name": "user interface", "target_name": "pattern recognition", "weight": 1.0, "year": 2020}, {"source": "50", "target": "69", "source_name": "user interface", "target_name": "mobile devices", "weight": 2.0, "year": 2020}, {"source": "50", "target": "71", "source_name": "user interface", "target_name": "embedded systems", "weight": 3.0, "year": 2020}, {"source": "50", "target": "73", "source_name": "user interface", "target_name": "engineering drawing", "weight": 1.0, "year": 2020}, {"source": "50", "target": "77", "source_name": "user interface", "target_name": "scalable vector graphics", "weight": 1.0, "year": 2020}, {"source": "50", "target": "78", "source_name": "user interface", "target_name": "ray tracing", "weight": 2.0, "year": 2020}, {"source": "50", "target": "82", "source_name": "user interface", "target_name": "data mining", "weight": 1.0, "year": 2020}, {"source": "50", "target": "83", "source_name": "user interface", "target_name": "graphics processing unit", "weight": 2.0, "year": 2020}, {"source": "50", "target": "84", "source_name": "user interface", "target_name": "frame rate", "weight": 1.0, "year": 2020}, {"source": "50", "target": "86", "source_name": "user interface", "target_name": "graphical user interface", "weight": 56.0, "year": 2020}, {"source": "51", "target": "52", "source_name": "global illumination", "target_name": "graphics cards", "weight": 1.0, "year": 2020}, {"source": "51", "target": "78", "source_name": "global illumination", "target_name": "ray tracing", "weight": 2.0, "year": 2020}, {"source": "51", "target": "79", "source_name": "global illumination", "target_name": "geometric modeling", "weight": 1.0, "year": 2020}, {"source": "52", "target": "60", "source_name": "graphics cards", "target_name": "floating point", "weight": 4.0, "year": 2020}, {"source": "52", "target": "64", "source_name": "graphics cards", "target_name": "scientific visualization", "weight": 1.0, "year": 2020}, {"source": "52", "target": "65", "source_name": "graphics cards", "target_name": "programming language", "weight": 1.0, "year": 2020}, {"source": "52", "target": "78", "source_name": "graphics cards", "target_name": "ray tracing", "weight": 1.0, "year": 2020}, {"source": "52", "target": "83", "source_name": "graphics cards", "target_name": "graphics processing unit", "weight": 7.0, "year": 2020}, {"source": "52", "target": "84", "source_name": "graphics cards", "target_name": "frame rate", "weight": 4.0, "year": 2020}, {"source": "53", "target": "72", "source_name": "graphic novels", "target_name": "public libraries", "weight": 1.0, "year": 2020}, {"source": "53", "target": "74", "source_name": "graphic novels", "target_name": "united states", "weight": 1.0, "year": 2020}, {"source": "58", "target": "66", "source_name": "chinese character", "target_name": "traditional chinese", "weight": 1.0, "year": 2020}, {"source": "59", "target": "82", "source_name": "machine learning", "target_name": "data mining", "weight": 3.0, "year": 2020}, {"source": "59", "target": "85", "source_name": "machine learning", "target_name": "artificial intelligence", "weight": 1.0, "year": 2020}, {"source": "59", "target": "86", "source_name": "machine learning", "target_name": "graphical user interface", "weight": 2.0, "year": 2020}, {"source": "60", "target": "67", "source_name": "floating point", "target_name": "image processing", "weight": 1.0, "year": 2020}, {"source": "60", "target": "71", "source_name": "floating point", "target_name": "embedded systems", "weight": 2.0, "year": 2020}, {"source": "62", "target": "63", "source_name": "pattern recognition", "target_name": "signal processing", "weight": 1.0, "year": 2020}, {"source": "62", "target": "67", "source_name": "pattern recognition", "target_name": "image processing", "weight": 3.0, "year": 2020}, {"source": "62", "target": "73", "source_name": "pattern recognition", "target_name": "engineering drawing", "weight": 2.0, "year": 2020}, {"source": "62", "target": "85", "source_name": "pattern recognition", "target_name": "artificial intelligence", "weight": 1.0, "year": 2020}, {"source": "63", "target": "67", "source_name": "signal processing", "target_name": "image processing", "weight": 1.0, "year": 2020}, {"source": "63", "target": "71", "source_name": "signal processing", "target_name": "embedded systems", "weight": 1.0, "year": 2020}, {"source": "63", "target": "83", "source_name": "signal processing", "target_name": "graphics processing unit", "weight": 1.0, "year": 2020}, {"source": "64", "target": "65", "source_name": "scientific visualization", "target_name": "programming language", "weight": 1.0, "year": 2020}, {"source": "64", "target": "67", "source_name": "scientific visualization", "target_name": "image processing", "weight": 1.0, "year": 2020}, {"source": "64", "target": "83", "source_name": "scientific visualization", "target_name": "graphics processing unit", "weight": 1.0, "year": 2020}, {"source": "65", "target": "67", "source_name": "programming language", "target_name": "image processing", "weight": 1.0, "year": 2020}, {"source": "65", "target": "78", "source_name": "programming language", "target_name": "ray tracing", "weight": 1.0, "year": 2020}, {"source": "65", "target": "79", "source_name": "programming language", "target_name": "geometric modeling", "weight": 1.0, "year": 2020}, {"source": "65", "target": "83", "source_name": "programming language", "target_name": "graphics processing unit", "weight": 3.0, "year": 2020}, {"source": "65", "target": "85", "source_name": "programming language", "target_name": "artificial intelligence", "weight": 1.0, "year": 2020}, {"source": "65", "target": "86", "source_name": "programming language", "target_name": "graphical user interface", "weight": 1.0, "year": 2020}, {"source": "67", "target": "70", "source_name": "image processing", "target_name": "solid modeling", "weight": 2.0, "year": 2020}, {"source": "67", "target": "78", "source_name": "image processing", "target_name": "ray tracing", "weight": 1.0, "year": 2020}, {"source": "67", "target": "83", "source_name": "image processing", "target_name": "graphics processing unit", "weight": 3.0, "year": 2020}, {"source": "67", "target": "85", "source_name": "image processing", "target_name": "artificial intelligence", "weight": 1.0, "year": 2020}, {"source": "68", "target": "74", "source_name": "digital library", "target_name": "united states", "weight": 1.0, "year": 2020}, {"source": "69", "target": "83", "source_name": "mobile devices", "target_name": "graphics processing unit", "weight": 1.0, "year": 2020}, {"source": "69", "target": "84", "source_name": "mobile devices", "target_name": "frame rate", "weight": 1.0, "year": 2020}, {"source": "69", "target": "85", "source_name": "mobile devices", "target_name": "artificial intelligence", "weight": 1.0, "year": 2020}, {"source": "70", "target": "74", "source_name": "solid modeling", "target_name": "united states", "weight": 1.0, "year": 2020}, {"source": "75", "target": "82", "source_name": "sustainable development", "target_name": "data mining", "weight": 1.0, "year": 2020}, {"source": "78", "target": "79", "source_name": "ray tracing", "target_name": "geometric modeling", "weight": 2.0, "year": 2020}, {"source": "78", "target": "83", "source_name": "ray tracing", "target_name": "graphics processing unit", "weight": 1.0, "year": 2020}, {"source": "78", "target": "86", "source_name": "ray tracing", "target_name": "graphical user interface", "weight": 1.0, "year": 2020}, {"source": "79", "target": "85", "source_name": "geometric modeling", "target_name": "artificial intelligence", "weight": 1.0, "year": 2020}, {"source": "80", "target": "83", "source_name": "virtual environments", "target_name": "graphics processing unit", "weight": 1.0, "year": 2020}, {"source": "80", "target": "85", "source_name": "virtual environments", "target_name": "artificial intelligence", "weight": 1.0, "year": 2020}, {"source": "82", "target": "85", "source_name": "data mining", "target_name": "artificial intelligence", "weight": 1.0, "year": 2020}, {"source": "82", "target": "86", "source_name": "data mining", "target_name": "graphical user interface", "weight": 1.0, "year": 2020}, {"source": "83", "target": "84", "source_name": "graphics processing unit", "target_name": "frame rate", "weight": 4.0, "year": 2020}, {"source": "85", "target": "86", "source_name": "artificial intelligence", "target_name": "graphical user interface", "weight": 1.0, "year": 2020}]}, {"2021": [{"source": "0", "target": "3", "source_name": "annual rainfall", "target_name": "statistical methods", "weight": 1.0, "year": 2021}, {"source": "0", "target": "4", "source_name": "annual rainfall", "target_name": "water resources", "weight": 3.0, "year": 2021}, {"source": "0", "target": "35", "source_name": "annual rainfall", "target_name": "statistical analysis", "weight": 1.0, "year": 2021}, {"source": "0", "target": "75", "source_name": "annual rainfall", "target_name": "sustainable development", "weight": 1.0, "year": 2021}, {"source": "1", "target": "2", "source_name": "web page", "target_name": "visual communication", "weight": 1.0, "year": 2021}, {"source": "1", "target": "18", "source_name": "web page", "target_name": "fine art", "weight": 1.0, "year": 2021}, {"source": "1", "target": "30", "source_name": "web page", "target_name": "graphic designer", "weight": 1.0, "year": 2021}, {"source": "1", "target": "36", "source_name": "web page", "target_name": "data visualization", "weight": 1.0, "year": 2021}, {"source": "1", "target": "38", "source_name": "web page", "target_name": "vector graphics", "weight": 1.0, "year": 2021}, {"source": "1", "target": "49", "source_name": "web page", "target_name": "graphic arts", "weight": 1.0, "year": 2021}, {"source": "1", "target": "50", "source_name": "web page", "target_name": "user interface", "weight": 1.0, "year": 2021}, {"source": "1", "target": "74", "source_name": "web page", "target_name": "united states", "weight": 1.0, "year": 2021}, {"source": "1", "target": "77", "source_name": "web page", "target_name": "scalable vector graphics", "weight": 1.0, "year": 2021}, {"source": "1", "target": "82", "source_name": "web page", "target_name": "data mining", "weight": 1.0, "year": 2021}, {"source": "1", "target": "84", "source_name": "web page", "target_name": "frame rate", "weight": 1.0, "year": 2021}, {"source": "1", "target": "86", "source_name": "web page", "target_name": "graphical user interface", "weight": 1.0, "year": 2021}, {"source": "2", "target": "10", "source_name": "visual communication", "target_name": "mobile phone", "weight": 1.0, "year": 2021}, {"source": "2", "target": "15", "source_name": "visual communication", "target_name": "problem solving", "weight": 1.0, "year": 2021}, {"source": "2", "target": "18", "source_name": "visual communication", "target_name": "fine art", "weight": 1.0, "year": 2021}, {"source": "2", "target": "20", "source_name": "visual communication", "target_name": "higher education", "weight": 2.0, "year": 2021}, {"source": "2", "target": "30", "source_name": "visual communication", "target_name": "graphic designer", "weight": 3.0, "year": 2021}, {"source": "2", "target": "39", "source_name": "visual communication", "target_name": "display device", "weight": 1.0, "year": 2021}, {"source": "2", "target": "49", "source_name": "visual communication", "target_name": "graphic arts", "weight": 1.0, "year": 2021}, {"source": "2", "target": "50", "source_name": "visual communication", "target_name": "user interface", "weight": 2.0, "year": 2021}, {"source": "2", "target": "58", "source_name": "visual communication", "target_name": "chinese character", "weight": 2.0, "year": 2021}, {"source": "2", "target": "74", "source_name": "visual communication", "target_name": "united states", "weight": 1.0, "year": 2021}, {"source": "2", "target": "86", "source_name": "visual communication", "target_name": "graphical user interface", "weight": 1.0, "year": 2021}, {"source": "3", "target": "63", "source_name": "statistical methods", "target_name": "signal processing", "weight": 1.0, "year": 2021}, {"source": "3", "target": "67", "source_name": "statistical methods", "target_name": "image processing", "weight": 1.0, "year": 2021}, {"source": "3", "target": "82", "source_name": "statistical methods", "target_name": "data mining", "weight": 1.0, "year": 2021}, {"source": "4", "target": "48", "source_name": "water resources", "target_name": "big data", "weight": 1.0, "year": 2021}, {"source": "4", "target": "54", "source_name": "water resources", "target_name": "climate change", "weight": 2.0, "year": 2021}, {"source": "4", "target": "75", "source_name": "water resources", "target_name": "sustainable development", "weight": 1.0, "year": 2021}, {"source": "5", "target": "30", "source_name": "fashion design", "target_name": "graphic designer", "weight": 1.0, "year": 2021}, {"source": "6", "target": "12", "source_name": "parallel computing", "target_name": "graphics processor", "weight": 3.0, "year": 2021}, {"source": "6", "target": "33", "source_name": "parallel computing", "target_name": "parallel processing", "weight": 1.0, "year": 2021}, {"source": "6", "target": "36", "source_name": "parallel computing", "target_name": "data visualization", "weight": 1.0, "year": 2021}, {"source": "6", "target": "37", "source_name": "parallel computing", "target_name": "eddy current", "weight": 1.0, "year": 2021}, {"source": "6", "target": "50", "source_name": "parallel computing", "target_name": "user interface", "weight": 1.0, "year": 2021}, {"source": "6", "target": "52", "source_name": "parallel computing", "target_name": "graphics cards", "weight": 2.0, "year": 2021}, {"source": "6", "target": "60", "source_name": "parallel computing", "target_name": "floating point", "weight": 1.0, "year": 2021}, {"source": "6", "target": "64", "source_name": "parallel computing", "target_name": "scientific visualization", "weight": 1.0, "year": 2021}, {"source": "6", "target": "67", "source_name": "parallel computing", "target_name": "image processing", "weight": 1.0, "year": 2021}, {"source": "6", "target": "83", "source_name": "parallel computing", "target_name": "graphics processing unit", "weight": 5.0, "year": 2021}, {"source": "6", "target": "86", "source_name": "parallel computing", "target_name": "graphical user interface", "weight": 1.0, "year": 2021}, {"source": "7", "target": "21", "source_name": "data acquisition", "target_name": "graphical interface", "weight": 1.0, "year": 2021}, {"source": "7", "target": "50", "source_name": "data acquisition", "target_name": "user interface", "weight": 3.0, "year": 2021}, {"source": "7", "target": "63", "source_name": "data acquisition", "target_name": "signal processing", "weight": 1.0, "year": 2021}, {"source": "7", "target": "65", "source_name": "data acquisition", "target_name": "programming language", "weight": 1.0, "year": 2021}, {"source": "7", "target": "67", "source_name": "data acquisition", "target_name": "image processing", "weight": 1.0, "year": 2021}, {"source": "7", "target": "86", "source_name": "data acquisition", "target_name": "graphical user interface", "weight": 2.0, "year": 2021}, {"source": "8", "target": "43", "source_name": "future directions", "target_name": "virtual reality", "weight": 1.0, "year": 2021}, {"source": "8", "target": "48", "source_name": "future directions", "target_name": "big data", "weight": 1.0, "year": 2021}, {"source": "8", "target": "50", "source_name": "future directions", "target_name": "user interface", "weight": 1.0, "year": 2021}, {"source": "8", "target": "59", "source_name": "future directions", "target_name": "machine learning", "weight": 2.0, "year": 2021}, {"source": "8", "target": "64", "source_name": "future directions", "target_name": "scientific visualization", "weight": 1.0, "year": 2021}, {"source": "8", "target": "82", "source_name": "future directions", "target_name": "data mining", "weight": 1.0, "year": 2021}, {"source": "8", "target": "86", "source_name": "future directions", "target_name": "graphical user interface", "weight": 1.0, "year": 2021}, {"source": "9", "target": "21", "source_name": "object oriented", "target_name": "graphical interface", "weight": 1.0, "year": 2021}, {"source": "9", "target": "79", "source_name": "object oriented", "target_name": "geometric modeling", "weight": 1.0, "year": 2021}, {"source": "9", "target": "85", "source_name": "object oriented", "target_name": "artificial intelligence", "weight": 1.0, "year": 2021}, {"source": "10", "target": "12", "source_name": "mobile phone", "target_name": "graphics processor", "weight": 1.0, "year": 2021}, {"source": "10", "target": "21", "source_name": "mobile phone", "target_name": "graphical interface", "weight": 1.0, "year": 2021}, {"source": "10", "target": "39", "source_name": "mobile phone", "target_name": "display device", "weight": 1.0, "year": 2021}, {"source": "10", "target": "50", "source_name": "mobile phone", "target_name": "user interface", "weight": 2.0, "year": 2021}, {"source": "10", "target": "69", "source_name": "mobile phone", "target_name": "mobile devices", "weight": 4.0, "year": 2021}, {"source": "10", "target": "81", "source_name": "mobile phone", "target_name": "literature review", "weight": 1.0, "year": 2021}, {"source": "11", "target": "32", "source_name": "software engineering", "target_name": "open source", "weight": 1.0, "year": 2021}, {"source": "11", "target": "33", "source_name": "software engineering", "target_name": "parallel processing", "weight": 1.0, "year": 2021}, {"source": "11", "target": "36", "source_name": "software engineering", "target_name": "data visualization", "weight": 1.0, "year": 2021}, {"source": "11", "target": "43", "source_name": "software engineering", "target_name": "virtual reality", "weight": 1.0, "year": 2021}, {"source": "11", "target": "44", "source_name": "software engineering", "target_name": "source code", "weight": 2.0, "year": 2021}, {"source": "11", "target": "50", "source_name": "software engineering", "target_name": "user interface", "weight": 1.0, "year": 2021}, {"source": "11", "target": "51", "source_name": "software engineering", "target_name": "global illumination", "weight": 1.0, "year": 2021}, {"source": "11", "target": "52", "source_name": "software engineering", "target_name": "graphics cards", "weight": 2.0, "year": 2021}, {"source": "11", "target": "78", "source_name": "software engineering", "target_name": "ray tracing", "weight": 1.0, "year": 2021}, {"source": "12", "target": "33", "source_name": "graphics processor", "target_name": "parallel processing", "weight": 1.0, "year": 2021}, {"source": "12", "target": "43", "source_name": "graphics processor", "target_name": "virtual reality", "weight": 2.0, "year": 2021}, {"source": "12", "target": "52", "source_name": "graphics processor", "target_name": "graphics cards", "weight": 4.0, "year": 2021}, {"source": "12", "target": "60", "source_name": "graphics processor", "target_name": "floating point", "weight": 2.0, "year": 2021}, {"source": "12", "target": "64", "source_name": "graphics processor", "target_name": "scientific visualization", "weight": 1.0, "year": 2021}, {"source": "12", "target": "65", "source_name": "graphics processor", "target_name": "programming language", "weight": 3.0, "year": 2021}, {"source": "12", "target": "67", "source_name": "graphics processor", "target_name": "image processing", "weight": 2.0, "year": 2021}, {"source": "12", "target": "78", "source_name": "graphics processor", "target_name": "ray tracing", "weight": 1.0, "year": 2021}, {"source": "12", "target": "83", "source_name": "graphics processor", "target_name": "graphics processing unit", "weight": 3.0, "year": 2021}, {"source": "12", "target": "85", "source_name": "graphics processor", "target_name": "artificial intelligence", "weight": 1.0, "year": 2021}, {"source": "13", "target": "36", "source_name": "augmented reality", "target_name": "data visualization", "weight": 1.0, "year": 2021}, {"source": "13", "target": "43", "source_name": "augmented reality", "target_name": "virtual reality", "weight": 4.0, "year": 2021}, {"source": "13", "target": "45", "source_name": "augmented reality", "target_name": "international conference", "weight": 1.0, "year": 2021}, {"source": "13", "target": "50", "source_name": "augmented reality", "target_name": "user interface", "weight": 1.0, "year": 2021}, {"source": "13", "target": "56", "source_name": "augmented reality", "target_name": "google trends", "weight": 1.0, "year": 2021}, {"source": "13", "target": "59", "source_name": "augmented reality", "target_name": "machine learning", "weight": 1.0, "year": 2021}, {"source": "13", "target": "67", "source_name": "augmented reality", "target_name": "image processing", "weight": 1.0, "year": 2021}, {"source": "13", "target": "82", "source_name": "augmented reality", "target_name": "data mining", "weight": 1.0, "year": 2021}, {"source": "14", "target": "36", "source_name": "human perception", "target_name": "data visualization", "weight": 1.0, "year": 2021}, {"source": "14", "target": "43", "source_name": "human perception", "target_name": "virtual reality", "weight": 2.0, "year": 2021}, {"source": "14", "target": "46", "source_name": "human perception", "target_name": "neural network", "weight": 1.0, "year": 2021}, {"source": "14", "target": "50", "source_name": "human perception", "target_name": "user interface", "weight": 2.0, "year": 2021}, {"source": "14", "target": "60", "source_name": "human perception", "target_name": "floating point", "weight": 2.0, "year": 2021}, {"source": "14", "target": "63", "source_name": "human perception", "target_name": "signal processing", "weight": 1.0, "year": 2021}, {"source": "14", "target": "71", "source_name": "human perception", "target_name": "embedded systems", "weight": 2.0, "year": 2021}, {"source": "14", "target": "80", "source_name": "human perception", "target_name": "virtual environments", "weight": 1.0, "year": 2021}, {"source": "14", "target": "86", "source_name": "human perception", "target_name": "graphical user interface", "weight": 1.0, "year": 2021}, {"source": "15", "target": "30", "source_name": "problem solving", "target_name": "graphic designer", "weight": 1.0, "year": 2021}, {"source": "15", "target": "47", "source_name": "problem solving", "target_name": "descriptive geometry", "weight": 1.0, "year": 2021}, {"source": "16", "target": "28", "source_name": "high school", "target_name": "current account", "weight": 1.0, "year": 2021}, {"source": "16", "target": "47", "source_name": "high school", "target_name": "descriptive geometry", "weight": 1.0, "year": 2021}, {"source": "16", "target": "49", "source_name": "high school", "target_name": "graphic arts", "weight": 1.0, "year": 2021}, {"source": "16", "target": "53", "source_name": "high school", "target_name": "graphic novels", "weight": 1.0, "year": 2021}, {"source": "16", "target": "70", "source_name": "high school", "target_name": "solid modeling", "weight": 1.0, "year": 2021}, {"source": "16", "target": "74", "source_name": "high school", "target_name": "united states", "weight": 1.0, "year": 2021}, {"source": "17", "target": "85", "source_name": "probabilistic graphical models", "target_name": "artificial intelligence", "weight": 1.0, "year": 2021}, {"source": "18", "target": "20", "source_name": "fine art", "target_name": "higher education", "weight": 1.0, "year": 2021}, {"source": "18", "target": "30", "source_name": "fine art", "target_name": "graphic designer", "weight": 1.0, "year": 2021}, {"source": "18", "target": "36", "source_name": "fine art", "target_name": "data visualization", "weight": 1.0, "year": 2021}, {"source": "18", "target": "49", "source_name": "fine art", "target_name": "graphic arts", "weight": 3.0, "year": 2021}, {"source": "18", "target": "66", "source_name": "fine art", "target_name": "traditional chinese", "weight": 1.0, "year": 2021}, {"source": "18", "target": "74", "source_name": "fine art", "target_name": "united states", "weight": 1.0, "year": 2021}, {"source": "20", "target": "29", "source_name": "higher education", "target_name": "teaching reform", "weight": 2.0, "year": 2021}, {"source": "20", "target": "30", "source_name": "higher education", "target_name": "graphic designer", "weight": 1.0, "year": 2021}, {"source": "20", "target": "47", "source_name": "higher education", "target_name": "descriptive geometry", "weight": 1.0, "year": 2021}, {"source": "20", "target": "49", "source_name": "higher education", "target_name": "graphic arts", "weight": 1.0, "year": 2021}, {"source": "20", "target": "53", "source_name": "higher education", "target_name": "graphic novels", "weight": 1.0, "year": 2021}, {"source": "20", "target": "81", "source_name": "higher education", "target_name": "literature review", "weight": 1.0, "year": 2021}, {"source": "21", "target": "23", "source_name": "graphical interface", "target_name": "modeling language", "weight": 1.0, "year": 2021}, {"source": "21", "target": "32", "source_name": "graphical interface", "target_name": "open source", "weight": 4.0, "year": 2021}, {"source": "21", "target": "36", "source_name": "graphical interface", "target_name": "data visualization", "weight": 1.0, "year": 2021}, {"source": "21", "target": "44", "source_name": "graphical interface", "target_name": "source code", "weight": 1.0, "year": 2021}, {"source": "21", "target": "46", "source_name": "graphical interface", "target_name": "neural network", "weight": 1.0, "year": 2021}, {"source": "21", "target": "50", "source_name": "graphical interface", "target_name": "user interface", "weight": 6.0, "year": 2021}, {"source": "21", "target": "62", "source_name": "graphical interface", "target_name": "pattern recognition", "weight": 1.0, "year": 2021}, {"source": "21", "target": "63", "source_name": "graphical interface", "target_name": "signal processing", "weight": 1.0, "year": 2021}, {"source": "21", "target": "65", "source_name": "graphical interface", "target_name": "programming language", "weight": 3.0, "year": 2021}, {"source": "21", "target": "69", "source_name": "graphical interface", "target_name": "mobile devices", "weight": 1.0, "year": 2021}, {"source": "21", "target": "85", "source_name": "graphical interface", "target_name": "artificial intelligence", "weight": 1.0, "year": 2021}, {"source": "21", "target": "86", "source_name": "graphical interface", "target_name": "graphical user interface", "weight": 8.0, "year": 2021}, {"source": "22", "target": "35", "source_name": "social media", "target_name": "statistical analysis", "weight": 1.0, "year": 2021}, {"source": "22", "target": "46", "source_name": "social media", "target_name": "neural network", "weight": 1.0, "year": 2021}, {"source": "22", "target": "87", "source_name": "social media", "target_name": "graphic organizer", "weight": 1.0, "year": 2021}, {"source": "23", "target": "43", "source_name": "modeling language", "target_name": "virtual reality", "weight": 1.0, "year": 2021}, {"source": "23", "target": "50", "source_name": "modeling language", "target_name": "user interface", "weight": 1.0, "year": 2021}, {"source": "24", "target": "48", "source_name": "cloud computing", "target_name": "big data", "weight": 2.0, "year": 2021}, {"source": "24", "target": "50", "source_name": "cloud computing", "target_name": "user interface", "weight": 1.0, "year": 2021}, {"source": "24", "target": "59", "source_name": "cloud computing", "target_name": "machine learning", "weight": 1.0, "year": 2021}, {"source": "24", "target": "85", "source_name": "cloud computing", "target_name": "artificial intelligence", "weight": 1.0, "year": 2021}, {"source": "24", "target": "86", "source_name": "cloud computing", "target_name": "graphical user interface", "weight": 1.0, "year": 2021}, {"source": "26", "target": "53", "source_name": "comic book", "target_name": "graphic novels", "weight": 6.0, "year": 2021}, {"source": "26", "target": "74", "source_name": "comic book", "target_name": "united states", "weight": 1.0, "year": 2021}, {"source": "27", "target": "53", "source_name": "media literacy", "target_name": "graphic novels", "weight": 1.0, "year": 2021}, {"source": "28", "target": "76", "source_name": "current account", "target_name": "exchange rate", "weight": 2.0, "year": 2021}, {"source": "29", "target": "79", "source_name": "teaching reform", "target_name": "geometric modeling", "weight": 1.0, "year": 2021}, {"source": "30", "target": "36", "source_name": "graphic designer", "target_name": "data visualization", "weight": 1.0, "year": 2021}, {"source": "30", "target": "38", "source_name": "graphic designer", "target_name": "vector graphics", "weight": 1.0, "year": 2021}, {"source": "30", "target": "42", "source_name": "graphic designer", "target_name": "line graph", "weight": 1.0, "year": 2021}, {"source": "30", "target": "49", "source_name": "graphic designer", "target_name": "graphic arts", "weight": 1.0, "year": 2021}, {"source": "30", "target": "61", "source_name": "graphic designer", "target_name": "hong kong", "weight": 1.0, "year": 2021}, {"source": "30", "target": "66", "source_name": "graphic designer", "target_name": "traditional chinese", "weight": 1.0, "year": 2021}, {"source": "30", "target": "74", "source_name": "graphic designer", "target_name": "united states", "weight": 1.0, "year": 2021}, {"source": "30", "target": "86", "source_name": "graphic designer", "target_name": "graphical user interface", "weight": 1.0, "year": 2021}, {"source": "31", "target": "37", "source_name": "magnetic field", "target_name": "eddy current", "weight": 1.0, "year": 2021}, {"source": "31", "target": "50", "source_name": "magnetic field", "target_name": "user interface", "weight": 1.0, "year": 2021}, {"source": "32", "target": "36", "source_name": "open source", "target_name": "data visualization", "weight": 1.0, "year": 2021}, {"source": "32", "target": "44", "source_name": "open source", "target_name": "source code", "weight": 1.0, "year": 2021}, {"source": "32", "target": "50", "source_name": "open source", "target_name": "user interface", "weight": 2.0, "year": 2021}, {"source": "32", "target": "62", "source_name": "open source", "target_name": "pattern recognition", "weight": 1.0, "year": 2021}, {"source": "32", "target": "63", "source_name": "open source", "target_name": "signal processing", "weight": 1.0, "year": 2021}, {"source": "32", "target": "65", "source_name": "open source", "target_name": "programming language", "weight": 1.0, "year": 2021}, {"source": "32", "target": "86", "source_name": "open source", "target_name": "graphical user interface", "weight": 3.0, "year": 2021}, {"source": "33", "target": "36", "source_name": "parallel processing", "target_name": "data visualization", "weight": 1.0, "year": 2021}, {"source": "33", "target": "43", "source_name": "parallel processing", "target_name": "virtual reality", "weight": 2.0, "year": 2021}, {"source": "33", "target": "51", "source_name": "parallel processing", "target_name": "global illumination", "weight": 1.0, "year": 2021}, {"source": "33", "target": "52", "source_name": "parallel processing", "target_name": "graphics cards", "weight": 1.0, "year": 2021}, {"source": "33", "target": "63", "source_name": "parallel processing", "target_name": "signal processing", "weight": 1.0, "year": 2021}, {"source": "33", "target": "67", "source_name": "parallel processing", "target_name": "image processing", "weight": 1.0, "year": 2021}, {"source": "33", "target": "78", "source_name": "parallel processing", "target_name": "ray tracing", "weight": 1.0, "year": 2021}, {"source": "33", "target": "83", "source_name": "parallel processing", "target_name": "graphics processing unit", "weight": 4.0, "year": 2021}, {"source": "33", "target": "86", "source_name": "parallel processing", "target_name": "graphical user interface", "weight": 1.0, "year": 2021}, {"source": "34", "target": "41", "source_name": "reading comprehension", "target_name": "efl learners", "weight": 1.0, "year": 2021}, {"source": "34", "target": "87", "source_name": "reading comprehension", "target_name": "graphic organizer", "weight": 2.0, "year": 2021}, {"source": "35", "target": "36", "source_name": "statistical analysis", "target_name": "data visualization", "weight": 1.0, "year": 2021}, {"source": "35", "target": "48", "source_name": "statistical analysis", "target_name": "big data", "weight": 1.0, "year": 2021}, {"source": "35", "target": "56", "source_name": "statistical analysis", "target_name": "google trends", "weight": 1.0, "year": 2021}, {"source": "36", "target": "42", "source_name": "data visualization", "target_name": "line graph", "weight": 1.0, "year": 2021}, {"source": "36", "target": "43", "source_name": "data visualization", "target_name": "virtual reality", "weight": 1.0, "year": 2021}, {"source": "36", "target": "46", "source_name": "data visualization", "target_name": "neural network", "weight": 1.0, "year": 2021}, {"source": "36", "target": "48", "source_name": "data visualization", "target_name": "big data", "weight": 2.0, "year": 2021}, {"source": "36", "target": "50", "source_name": "data visualization", "target_name": "user interface", "weight": 3.0, "year": 2021}, {"source": "36", "target": "56", "source_name": "data visualization", "target_name": "google trends", "weight": 1.0, "year": 2021}, {"source": "36", "target": "62", "source_name": "data visualization", "target_name": "pattern recognition", "weight": 1.0, "year": 2021}, {"source": "36", "target": "63", "source_name": "data visualization", "target_name": "signal processing", "weight": 1.0, "year": 2021}, {"source": "36", "target": "64", "source_name": "data visualization", "target_name": "scientific visualization", "weight": 1.0, "year": 2021}, {"source": "36", "target": "69", "source_name": "data visualization", "target_name": "mobile devices", "weight": 1.0, "year": 2021}, {"source": "36", "target": "81", "source_name": "data visualization", "target_name": "literature review", "weight": 1.0, "year": 2021}, {"source": "36", "target": "82", "source_name": "data visualization", "target_name": "data mining", "weight": 1.0, "year": 2021}, {"source": "37", "target": "50", "source_name": "eddy current", "target_name": "user interface", "weight": 1.0, "year": 2021}, {"source": "37", "target": "86", "source_name": "eddy current", "target_name": "graphical user interface", "weight": 1.0, "year": 2021}, {"source": "38", "target": "44", "source_name": "vector graphics", "target_name": "source code", "weight": 1.0, "year": 2021}, {"source": "38", "target": "46", "source_name": "vector graphics", "target_name": "neural network", "weight": 1.0, "year": 2021}, {"source": "38", "target": "50", "source_name": "vector graphics", "target_name": "user interface", "weight": 2.0, "year": 2021}, {"source": "38", "target": "62", "source_name": "vector graphics", "target_name": "pattern recognition", "weight": 1.0, "year": 2021}, {"source": "38", "target": "73", "source_name": "vector graphics", "target_name": "engineering drawing", "weight": 1.0, "year": 2021}, {"source": "38", "target": "77", "source_name": "vector graphics", "target_name": "scalable vector graphics", "weight": 15.0, "year": 2021}, {"source": "38", "target": "78", "source_name": "vector graphics", "target_name": "ray tracing", "weight": 1.0, "year": 2021}, {"source": "38", "target": "86", "source_name": "vector graphics", "target_name": "graphical user interface", "weight": 1.0, "year": 2021}, {"source": "39", "target": "40", "source_name": "display device", "target_name": "frame buffer", "weight": 1.0, "year": 2021}, {"source": "39", "target": "50", "source_name": "display device", "target_name": "user interface", "weight": 5.0, "year": 2021}, {"source": "39", "target": "86", "source_name": "display device", "target_name": "graphical user interface", "weight": 2.0, "year": 2021}, {"source": "40", "target": "71", "source_name": "frame buffer", "target_name": "embedded systems", "weight": 1.0, "year": 2021}, {"source": "40", "target": "84", "source_name": "frame buffer", "target_name": "frame rate", "weight": 1.0, "year": 2021}, {"source": "41", "target": "87", "source_name": "efl learners", "target_name": "graphic organizer", "weight": 2.0, "year": 2021}, {"source": "42", "target": "68", "source_name": "line graph", "target_name": "digital library", "weight": 1.0, "year": 2021}, {"source": "43", "target": "45", "source_name": "virtual reality", "target_name": "international conference", "weight": 1.0, "year": 2021}, {"source": "43", "target": "47", "source_name": "virtual reality", "target_name": "descriptive geometry", "weight": 1.0, "year": 2021}, {"source": "43", "target": "50", "source_name": "virtual reality", "target_name": "user interface", "weight": 8.0, "year": 2021}, {"source": "43", "target": "51", "source_name": "virtual reality", "target_name": "global illumination", "weight": 1.0, "year": 2021}, {"source": "43", "target": "52", "source_name": "virtual reality", "target_name": "graphics cards", "weight": 1.0, "year": 2021}, {"source": "43", "target": "60", "source_name": "virtual reality", "target_name": "floating point", "weight": 2.0, "year": 2021}, {"source": "43", "target": "61", "source_name": "virtual reality", "target_name": "hong kong", "weight": 1.0, "year": 2021}, {"source": "43", "target": "62", "source_name": "virtual reality", "target_name": "pattern recognition", "weight": 1.0, "year": 2021}, {"source": "43", "target": "64", "source_name": "virtual reality", "target_name": "scientific visualization", "weight": 4.0, "year": 2021}, {"source": "43", "target": "65", "source_name": "virtual reality", "target_name": "programming language", "weight": 1.0, "year": 2021}, {"source": "43", "target": "67", "source_name": "virtual reality", "target_name": "image processing", "weight": 4.0, "year": 2021}, {"source": "43", "target": "71", "source_name": "virtual reality", "target_name": "embedded systems", "weight": 2.0, "year": 2021}, {"source": "43", "target": "78", "source_name": "virtual reality", "target_name": "ray tracing", "weight": 2.0, "year": 2021}, {"source": "43", "target": "80", "source_name": "virtual reality", "target_name": "virtual environments", "weight": 1.0, "year": 2021}, {"source": "43", "target": "83", "source_name": "virtual reality", "target_name": "graphics processing unit", "weight": 2.0, "year": 2021}, {"source": "43", "target": "85", "source_name": "virtual reality", "target_name": "artificial intelligence", "weight": 3.0, "year": 2021}, {"source": "43", "target": "86", "source_name": "virtual reality", "target_name": "graphical user interface", "weight": 1.0, "year": 2021}, {"source": "44", "target": "46", "source_name": "source code", "target_name": "neural network", "weight": 1.0, "year": 2021}, {"source": "44", "target": "50", "source_name": "source code", "target_name": "user interface", "weight": 1.0, "year": 2021}, {"source": "44", "target": "65", "source_name": "source code", "target_name": "programming language", "weight": 1.0, "year": 2021}, {"source": "44", "target": "79", "source_name": "source code", "target_name": "geometric modeling", "weight": 1.0, "year": 2021}, {"source": "44", "target": "86", "source_name": "source code", "target_name": "graphical user interface", "weight": 2.0, "year": 2021}, {"source": "45", "target": "67", "source_name": "international conference", "target_name": "image processing", "weight": 2.0, "year": 2021}, {"source": "45", "target": "70", "source_name": "international conference", "target_name": "solid modeling", "weight": 2.0, "year": 2021}, {"source": "45", "target": "75", "source_name": "international conference", "target_name": "sustainable development", "weight": 1.0, "year": 2021}, {"source": "45", "target": "82", "source_name": "international conference", "target_name": "data mining", "weight": 1.0, "year": 2021}, {"source": "46", "target": "48", "source_name": "neural network", "target_name": "big data", "weight": 1.0, "year": 2021}, {"source": "46", "target": "52", "source_name": "neural network", "target_name": "graphics cards", "weight": 1.0, "year": 2021}, {"source": "46", "target": "59", "source_name": "neural network", "target_name": "machine learning", "weight": 1.0, "year": 2021}, {"source": "46", "target": "67", "source_name": "neural network", "target_name": "image processing", "weight": 1.0, "year": 2021}, {"source": "46", "target": "83", "source_name": "neural network", "target_name": "graphics processing unit", "weight": 1.0, "year": 2021}, {"source": "46", "target": "86", "source_name": "neural network", "target_name": "graphical user interface", "weight": 1.0, "year": 2021}, {"source": "47", "target": "64", "source_name": "descriptive geometry", "target_name": "scientific visualization", "weight": 1.0, "year": 2021}, {"source": "47", "target": "67", "source_name": "descriptive geometry", "target_name": "image processing", "weight": 1.0, "year": 2021}, {"source": "47", "target": "73", "source_name": "descriptive geometry", "target_name": "engineering drawing", "weight": 1.0, "year": 2021}, {"source": "48", "target": "50", "source_name": "big data", "target_name": "user interface", "weight": 1.0, "year": 2021}, {"source": "48", "target": "59", "source_name": "big data", "target_name": "machine learning", "weight": 1.0, "year": 2021}, {"source": "48", "target": "82", "source_name": "big data", "target_name": "data mining", "weight": 1.0, "year": 2021}, {"source": "48", "target": "85", "source_name": "big data", "target_name": "artificial intelligence", "weight": 1.0, "year": 2021}, {"source": "48", "target": "86", "source_name": "big data", "target_name": "graphical user interface", "weight": 1.0, "year": 2021}, {"source": "49", "target": "74", "source_name": "graphic arts", "target_name": "united states", "weight": 1.0, "year": 2021}, {"source": "50", "target": "59", "source_name": "user interface", "target_name": "machine learning", "weight": 2.0, "year": 2021}, {"source": "50", "target": "60", "source_name": "user interface", "target_name": "floating point", "weight": 2.0, "year": 2021}, {"source": "50", "target": "62", "source_name": "user interface", "target_name": "pattern recognition", "weight": 1.0, "year": 2021}, {"source": "50", "target": "69", "source_name": "user interface", "target_name": "mobile devices", "weight": 2.0, "year": 2021}, {"source": "50", "target": "71", "source_name": "user interface", "target_name": "embedded systems", "weight": 3.0, "year": 2021}, {"source": "50", "target": "73", "source_name": "user interface", "target_name": "engineering drawing", "weight": 1.0, "year": 2021}, {"source": "50", "target": "77", "source_name": "user interface", "target_name": "scalable vector graphics", "weight": 1.0, "year": 2021}, {"source": "50", "target": "78", "source_name": "user interface", "target_name": "ray tracing", "weight": 2.0, "year": 2021}, {"source": "50", "target": "82", "source_name": "user interface", "target_name": "data mining", "weight": 1.0, "year": 2021}, {"source": "50", "target": "83", "source_name": "user interface", "target_name": "graphics processing unit", "weight": 2.0, "year": 2021}, {"source": "50", "target": "84", "source_name": "user interface", "target_name": "frame rate", "weight": 1.0, "year": 2021}, {"source": "50", "target": "86", "source_name": "user interface", "target_name": "graphical user interface", "weight": 57.0, "year": 2021}, {"source": "51", "target": "52", "source_name": "global illumination", "target_name": "graphics cards", "weight": 1.0, "year": 2021}, {"source": "51", "target": "78", "source_name": "global illumination", "target_name": "ray tracing", "weight": 2.0, "year": 2021}, {"source": "51", "target": "79", "source_name": "global illumination", "target_name": "geometric modeling", "weight": 1.0, "year": 2021}, {"source": "52", "target": "60", "source_name": "graphics cards", "target_name": "floating point", "weight": 4.0, "year": 2021}, {"source": "52", "target": "64", "source_name": "graphics cards", "target_name": "scientific visualization", "weight": 1.0, "year": 2021}, {"source": "52", "target": "65", "source_name": "graphics cards", "target_name": "programming language", "weight": 1.0, "year": 2021}, {"source": "52", "target": "78", "source_name": "graphics cards", "target_name": "ray tracing", "weight": 1.0, "year": 2021}, {"source": "52", "target": "83", "source_name": "graphics cards", "target_name": "graphics processing unit", "weight": 7.0, "year": 2021}, {"source": "52", "target": "84", "source_name": "graphics cards", "target_name": "frame rate", "weight": 4.0, "year": 2021}, {"source": "53", "target": "72", "source_name": "graphic novels", "target_name": "public libraries", "weight": 2.0, "year": 2021}, {"source": "53", "target": "74", "source_name": "graphic novels", "target_name": "united states", "weight": 1.0, "year": 2021}, {"source": "54", "target": "75", "source_name": "climate change", "target_name": "sustainable development", "weight": 1.0, "year": 2021}, {"source": "58", "target": "66", "source_name": "chinese character", "target_name": "traditional chinese", "weight": 2.0, "year": 2021}, {"source": "59", "target": "82", "source_name": "machine learning", "target_name": "data mining", "weight": 3.0, "year": 2021}, {"source": "59", "target": "85", "source_name": "machine learning", "target_name": "artificial intelligence", "weight": 2.0, "year": 2021}, {"source": "59", "target": "86", "source_name": "machine learning", "target_name": "graphical user interface", "weight": 2.0, "year": 2021}, {"source": "60", "target": "67", "source_name": "floating point", "target_name": "image processing", "weight": 1.0, "year": 2021}, {"source": "60", "target": "71", "source_name": "floating point", "target_name": "embedded systems", "weight": 2.0, "year": 2021}, {"source": "62", "target": "63", "source_name": "pattern recognition", "target_name": "signal processing", "weight": 1.0, "year": 2021}, {"source": "62", "target": "67", "source_name": "pattern recognition", "target_name": "image processing", "weight": 3.0, "year": 2021}, {"source": "62", "target": "73", "source_name": "pattern recognition", "target_name": "engineering drawing", "weight": 2.0, "year": 2021}, {"source": "62", "target": "85", "source_name": "pattern recognition", "target_name": "artificial intelligence", "weight": 1.0, "year": 2021}, {"source": "63", "target": "67", "source_name": "signal processing", "target_name": "image processing", "weight": 1.0, "year": 2021}, {"source": "63", "target": "71", "source_name": "signal processing", "target_name": "embedded systems", "weight": 1.0, "year": 2021}, {"source": "63", "target": "83", "source_name": "signal processing", "target_name": "graphics processing unit", "weight": 1.0, "year": 2021}, {"source": "64", "target": "65", "source_name": "scientific visualization", "target_name": "programming language", "weight": 1.0, "year": 2021}, {"source": "64", "target": "67", "source_name": "scientific visualization", "target_name": "image processing", "weight": 1.0, "year": 2021}, {"source": "64", "target": "83", "source_name": "scientific visualization", "target_name": "graphics processing unit", "weight": 1.0, "year": 2021}, {"source": "65", "target": "67", "source_name": "programming language", "target_name": "image processing", "weight": 1.0, "year": 2021}, {"source": "65", "target": "78", "source_name": "programming language", "target_name": "ray tracing", "weight": 1.0, "year": 2021}, {"source": "65", "target": "79", "source_name": "programming language", "target_name": "geometric modeling", "weight": 1.0, "year": 2021}, {"source": "65", "target": "83", "source_name": "programming language", "target_name": "graphics processing unit", "weight": 3.0, "year": 2021}, {"source": "65", "target": "85", "source_name": "programming language", "target_name": "artificial intelligence", "weight": 1.0, "year": 2021}, {"source": "65", "target": "86", "source_name": "programming language", "target_name": "graphical user interface", "weight": 1.0, "year": 2021}, {"source": "67", "target": "70", "source_name": "image processing", "target_name": "solid modeling", "weight": 2.0, "year": 2021}, {"source": "67", "target": "78", "source_name": "image processing", "target_name": "ray tracing", "weight": 1.0, "year": 2021}, {"source": "67", "target": "83", "source_name": "image processing", "target_name": "graphics processing unit", "weight": 3.0, "year": 2021}, {"source": "67", "target": "85", "source_name": "image processing", "target_name": "artificial intelligence", "weight": 1.0, "year": 2021}, {"source": "68", "target": "74", "source_name": "digital library", "target_name": "united states", "weight": 1.0, "year": 2021}, {"source": "69", "target": "83", "source_name": "mobile devices", "target_name": "graphics processing unit", "weight": 1.0, "year": 2021}, {"source": "69", "target": "84", "source_name": "mobile devices", "target_name": "frame rate", "weight": 1.0, "year": 2021}, {"source": "69", "target": "85", "source_name": "mobile devices", "target_name": "artificial intelligence", "weight": 1.0, "year": 2021}, {"source": "70", "target": "74", "source_name": "solid modeling", "target_name": "united states", "weight": 1.0, "year": 2021}, {"source": "75", "target": "82", "source_name": "sustainable development", "target_name": "data mining", "weight": 1.0, "year": 2021}, {"source": "78", "target": "79", "source_name": "ray tracing", "target_name": "geometric modeling", "weight": 2.0, "year": 2021}, {"source": "78", "target": "83", "source_name": "ray tracing", "target_name": "graphics processing unit", "weight": 1.0, "year": 2021}, {"source": "78", "target": "86", "source_name": "ray tracing", "target_name": "graphical user interface", "weight": 1.0, "year": 2021}, {"source": "79", "target": "85", "source_name": "geometric modeling", "target_name": "artificial intelligence", "weight": 1.0, "year": 2021}, {"source": "80", "target": "83", "source_name": "virtual environments", "target_name": "graphics processing unit", "weight": 1.0, "year": 2021}, {"source": "80", "target": "85", "source_name": "virtual environments", "target_name": "artificial intelligence", "weight": 1.0, "year": 2021}, {"source": "82", "target": "85", "source_name": "data mining", "target_name": "artificial intelligence", "weight": 1.0, "year": 2021}, {"source": "82", "target": "86", "source_name": "data mining", "target_name": "graphical user interface", "weight": 1.0, "year": 2021}, {"source": "83", "target": "84", "source_name": "graphics processing unit", "target_name": "frame rate", "weight": 4.0, "year": 2021}, {"source": "85", "target": "86", "source_name": "artificial intelligence", "target_name": "graphical user interface", "weight": 1.0, "year": 2021}]}]}