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README.md
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---
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language:
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- en
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base_model:
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- google/electra-base-discriminator
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pipeline_tag: text-ranking
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---
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monoELECTRA is a highly effective cross-encoder reranker built on `google/electra-base-discriminator` and trained on MS MARCO passage data for 300K steps with a batch size of 16.
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It uses hard negatives from strong first-stage retrievers and the Localized Contrastive Estimation (LCE) loss with large group sizes (up to 31 negatives per positive).
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This setup consistently outperforms standard monoBERT and hinge/CE baselines, especially in the top-$k$ pool where near-duplicate passages matter.
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If you want a compact, supervised reranker that was tuned to squeeze every last bit of signal from hard negatives, use this one.
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If you use the monoELECTRA model, please cite the following relevant paper:
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[Squeezing Water from a Stone: A Bag of Tricks for Further Improving Cross-Encoder Effectiveness for Reranking](https://arxiv.org/abs/2312.02724)
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<!-- {% raw %} -->
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```
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@inproceedings{squeezemonoelectra2022,
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author = {Pradeep, Ronak and Liu, Yuqi and Zhang, Xinyu and Li, Yilin and Yates, Andrew and Lin, Jimmy},
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title = {Squeezing Water from a Stone: A Bag of Tricks for Further Improving Cross-Encoder Effectiveness for Reranking},
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year = {2022},
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publisher = {Springer-Verlag},
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address = {Berlin, Heidelberg},
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booktitle = {Advances in Information Retrieval: 44th European Conference on IR Research, ECIR 2022, Stavanger, Norway, April 10–14, 2022, Proceedings, Part I},
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pages = {655–670},
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numpages = {16},
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location = {Stavanger, Norway}
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}
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```
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