Phrase-Indexed Question Answering: A New Challenge for Scalable Document Comprehension Minjoon Seo author Tom Kwiatkowski author Ankur Parikh author Ali Farhadi author Hannaneh Hajishirzi author 2018-oct-nov text Proceedings of the 2018 Conference on Empirical Methods in Natural Language Processing Ellen Riloff editor David Chiang editor Julia Hockenmaier editor Jun’ichi Tsujii editor Association for Computational Linguistics Brussels, Belgium conference publication seo-etal-2018-phrase 10.18653/v1/D18-1052 https://aclanthology.org/D18-1052/ 2018-oct-nov 559 564