@inproceedings{sun-etal-2022-reduce,
title = "Reduce Catastrophic Forgetting of Dense Retrieval Training with Teleportation Negatives",
author = "Sun, Si and
Xiong, Chenyan and
Yu, Yue and
Overwijk, Arnold and
Liu, Zhiyuan and
Bao, Jie",
editor = "Goldberg, Yoav and
Kozareva, Zornitsa and
Zhang, Yue",
booktitle = "Proceedings of the 2022 Conference on Empirical Methods in Natural Language Processing",
month = dec,
year = "2022",
address = "Abu Dhabi, United Arab Emirates",
publisher = "Association for Computational Linguistics",
url = "https://aclanthology.org/2022.emnlp-main.445/",
doi = "10.18653/v1/2022.emnlp-main.445",
pages = "6639--6654",
abstract = "In this paper, we investigate the instability in the standard dense retrieval training, which iterates between model training and hard negative selection using the being-trained model. We show the catastrophic forgetting phenomena behind the training instability, where models learn and forget different negative groups during training iterations. We then propose ANCE-Tele, which accumulates momentum negatives from past iterations and approximates future iterations using lookahead negatives, as {\textquotedblleft}teleportations{\textquotedblright} along the time axis to smooth the learning process. On web search and OpenQA, ANCE-Tele outperforms previous state-of-the-art systems of similar size, eliminates the dependency on sparse retrieval negatives, and is competitive among systems using significantly more (50x) parameters. Our analysis demonstrates that teleportation negatives reduce catastrophic forgetting and improve convergence speed for dense retrieval training. The source code of this paper is available at https://github.com/OpenMatch/ANCE-Tele."
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%0 Conference Proceedings
%T Reduce Catastrophic Forgetting of Dense Retrieval Training with Teleportation Negatives
%A Sun, Si
%A Xiong, Chenyan
%A Yu, Yue
%A Overwijk, Arnold
%A Liu, Zhiyuan
%A Bao, Jie
%Y Goldberg, Yoav
%Y Kozareva, Zornitsa
%Y Zhang, Yue
%S Proceedings of the 2022 Conference on Empirical Methods in Natural Language Processing
%D 2022
%8 December
%I Association for Computational Linguistics
%C Abu Dhabi, United Arab Emirates
%F sun-etal-2022-reduce
%X In this paper, we investigate the instability in the standard dense retrieval training, which iterates between model training and hard negative selection using the being-trained model. We show the catastrophic forgetting phenomena behind the training instability, where models learn and forget different negative groups during training iterations. We then propose ANCE-Tele, which accumulates momentum negatives from past iterations and approximates future iterations using lookahead negatives, as “teleportations” along the time axis to smooth the learning process. On web search and OpenQA, ANCE-Tele outperforms previous state-of-the-art systems of similar size, eliminates the dependency on sparse retrieval negatives, and is competitive among systems using significantly more (50x) parameters. Our analysis demonstrates that teleportation negatives reduce catastrophic forgetting and improve convergence speed for dense retrieval training. The source code of this paper is available at https://github.com/OpenMatch/ANCE-Tele.
%R 10.18653/v1/2022.emnlp-main.445
%U https://aclanthology.org/2022.emnlp-main.445/
%U https://doi.org/10.18653/v1/2022.emnlp-main.445
%P 6639-6654
Markdown (Informal)
[Reduce Catastrophic Forgetting of Dense Retrieval Training with Teleportation Negatives](https://aclanthology.org/2022.emnlp-main.445/) (Sun et al., EMNLP 2022)
ACL