Unsupervised dense retrieval with conterfactual contrastive learning. - Haitian Chen; Qingyao Ai; Xiao Wang 043; Yiqun Liu 001; Fen Lin 002; Qin Liu 022 (CoRR, 2024)

Unsupervised Dense Retrieval with Conterfactual Contrastive Learning. - Haitian Chen; Qingyao Ai; Yujia Zhou 002; Xiao Wang 043; Yiqun Liu 001; Fen Lin 002; Qin Liu 022 (WSDM, 2026)

Generalized Pseudo-Relevance Feedback. - Yiteng Tu; Weihang Su; Yujia Zhou 002; Yiqun Liu 001; Fen Lin 002; Qin Liu 022; Qingyao Ai (WWW, 2026)