Simple and Effective Unsupervised Redundancy Elimination to Compress Dense Vectors for Passage Retrieval Xueguang Ma author Minghan Li author Kai Sun author Ji Xin author Jimmy Lin author 2021-11 text Proceedings of the 2021 Conference on Empirical Methods in Natural Language Processing Marie-Francine Moens editor Xuanjing Huang editor Lucia Specia editor Scott Wen-tau Yih editor Association for Computational Linguistics Online and Punta Cana, Dominican Republic conference publication ma-etal-2021-simple 10.18653/v1/2021.emnlp-main.227 https://aclanthology.org/2021.emnlp-main.227/ 2021-11 2854 2859