xMoCo: Cross Momentum Contrastive Learning for Open-Domain Question Answering

no code implementations • ACL 2021 • Nan Yang, Furu Wei, Binxing Jiao, Daxing Jiang, Linjun Yang

Dense passage retrieval has been shown to be an effective approach for information retrieval tasks such as open domain question answering.

Contrastive Learning Open-Domain Question Answering +2