Improving Answer Selection and Answer Triggering using Hard Negatives Sawan Kumar author Shweta Garg author Kartik Mehta author Nikhil Rasiwasia 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 kumar-etal-2019-improving 10.18653/v1/D19-1604 https://aclanthology.org/D19-1604/ 2019-11 5911 5917