Weakly Supervised Pre-Training for Multi-Hop Retriever Yeon Seonwoo author Sang-Woo Lee author Ji-Hoon Kim author Jung-Woo Ha author Alice Oh author 2021-08 text Findings of the Association for Computational Linguistics: ACL-IJCNLP 2021 Chengqing Zong editor Fei Xia editor Wenjie Li editor Roberto Navigli editor Association for Computational Linguistics Online conference publication seonwoo-etal-2021-weakly 10.18653/v1/2021.findings-acl.62 https://aclanthology.org/2021.findings-acl.62/ 2021-08 694 704