QAInfomax: Learning Robust Question Answering System by Mutual Information Maximization Yi-Ting Yeh author Yun-Nung Chen author 2019-11 text Proceedings of the 2019 Conference on Empirical Methods in Natural Language Processing and the 9th International Joint Conference on Natural Language Processing (EMNLP-IJCNLP) Kentaro Inui editor Jing Jiang editor Vincent Ng editor Xiaojun Wan editor Association for Computational Linguistics Hong Kong, China conference publication yeh-chen-2019-qainfomax 10.18653/v1/D19-1333 https://aclanthology.org/D19-1333/ 2019-11 3370 3375