Open-Domain Question Answering Danqi Chen author Wen-tau Yih author 2020-07 text Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics: Tutorial Abstracts Agata Savary editor Yue Zhang editor Association for Computational Linguistics Online conference publication chen-yih-2020-open 10.18653/v1/2020.acl-tutorials.8 https://aclanthology.org/2020.acl-tutorials.8/ 2020-07 34 37