Multi-task Learning with Sample Re-weighting for Machine Reading Comprehension Yichong Xu author Xiaodong Liu author Yelong Shen author Jingjing Liu author Jianfeng Gao 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 xu-etal-2019-multi 10.18653/v1/N19-1271 https://aclanthology.org/N19-1271/ 2019-06 2644 2655