You Only Need One Model for Open-domain Question Answering Haejun Lee author Akhil Kedia author Jongwon Lee author Ashwin Paranjape author Christopher Manning author Kyoung-Gu Woo author 2022-12 text Proceedings of the 2022 Conference on Empirical Methods in Natural Language Processing Yoav Goldberg editor Zornitsa Kozareva editor Yue Zhang editor Association for Computational Linguistics Abu Dhabi, United Arab Emirates conference publication lee-etal-2022-need 10.18653/v1/2022.emnlp-main.198 https://aclanthology.org/2022.emnlp-main.198/ 2022-12 3047 3060