Haichao Zhu, Li Dong 0004, Furu Wei, Wenhui Wang, Bing Qin 0001, Ting Liu 0001. Learning to Ask Unanswerable Questions for Machine Reading Comprehension. In Anna Korhonen, David R. Traum, Lluís Màrquez, editors, Proceedings of the 57th Conference of the Association for Computational Linguistics, ACL 2019, Florence, Italy, July 28- August 2, 2019, Volume 1: Long Papers. pages 4238-4248, Association for Computational Linguistics, 2019. [doi]
Abstract is missing.