Learning to Attend On Essential Terms: An Enhanced Retriever-Reader Model for Open-domain Question Answering Jianmo Ni author Chenguang Zhu author Weizhu Chen author Julian McAuley author 2019-06 text Proceedings of the 2019 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies, Volume 1 (Long and Short Papers) Jill Burstein editor Christy Doran editor Thamar Solorio editor Association for Computational Linguistics Minneapolis, Minnesota conference publication ni-etal-2019-learning 10.18653/v1/N19-1030 https://aclanthology.org/N19-1030/ 2019-06 335 344