AmbigQA: Answering Ambiguous Open-domain Questions Sewon Min author Julian Michael author Hannaneh Hajishirzi author Luke Zettlemoyer author 2020-11 text Proceedings of the 2020 Conference on Empirical Methods in Natural Language Processing (EMNLP) Bonnie Webber editor Trevor Cohn editor Yulan He editor Yang Liu editor Association for Computational Linguistics Online conference publication min-etal-2020-ambigqa 10.18653/v1/2020.emnlp-main.466 https://aclanthology.org/2020.emnlp-main.466/ 2020-11 5783 5797