Reducing Word Omission Errors in Neural Machine Translation: A Contrastive Learning Approach Zonghan Yang author Yong Cheng author Yang Liu author Maosong Sun author 2019-07 text Proceedings of the 57th Annual Meeting of the Association for Computational Linguistics Anna Korhonen editor David Traum editor Lluís Màrquez editor Association for Computational Linguistics Florence, Italy conference publication yang-etal-2019-reducing 10.18653/v1/P19-1623 https://aclanthology.org/P19-1623/ 2019-07 6191 6196