Unsupervised Context Rewriting for Open Domain Conversation Kun Zhou author Kai Zhang author Yu Wu author Shujie Liu author Jingsong Yu 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 zhou-etal-2019-unsupervised 10.18653/v1/D19-1192 https://aclanthology.org/D19-1192/ 2019-11 1834 1844