Condenser: a Pre-training Architecture for Dense Retrieval Luyu Gao author Jamie Callan 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 gao-callan-2021-condenser 10.18653/v1/2021.emnlp-main.75 https://aclanthology.org/2021.emnlp-main.75/ 2021-11 981 993