Generation-Augmented Retrieval for Open-Domain Question Answering
135 Citations•2021•
Yuning Mao, Pengcheng He, Xiaodong Liu
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It is shown that generating diverse contexts for a query is beneficial as fusing their results consistently yields better retrieval accuracy, and as sparse and dense representations are often complementary, GAR can be easily combined with DPR to achieve even better performance.
Abstract
Yuning Mao, Pengcheng He, Xiaodong Liu, Yelong Shen, Jianfeng Gao, Jiawei Han, Weizhu Chen. Proceedings of the 59th Annual Meeting of the Association for Computational Linguistics and the 11th International Joint Conference on Natural Language Processing (Volume 1: Long Papers). 2021.