SimANS: Simple Ambiguous Negatives Sampling for Dense Text Retrieval Kun Zhou author Yeyun Gong author Xiao Liu author Wayne Xin Zhao author Yelong Shen author Anlei Dong author Jingwen Lu author Rangan Majumder author Ji-rong Wen author Nan Duan author 2022-12 text Proceedings of the 2022 Conference on Empirical Methods in Natural Language Processing: Industry Track Yunyao Li editor Angeliki Lazaridou editor Association for Computational Linguistics Abu Dhabi, UAE conference publication zhou-etal-2022-simans 10.18653/v1/2022.emnlp-industry.56 https://aclanthology.org/2022.emnlp-industry.56/ 2022-12 548 559