Relevant and Informative Response Generation using Pointwise Mutual Information Junya Takayama author Yuki Arase author 2019-08 text Proceedings of the First Workshop on NLP for Conversational AI Yun-Nung Chen editor Tania Bedrax-Weiss editor Dilek Hakkani-Tur editor Anuj Kumar editor Mike Lewis editor Thang-Minh Luong editor Pei-Hao Su editor Tsung-Hsien Wen editor Association for Computational Linguistics Florence, Italy conference publication takayama-arase-2019-relevant 10.18653/v1/W19-4115 https://aclanthology.org/W19-4115/ 2019-08 133 138