Focus-Constrained Attention Mechanism for CVAE-based Response Generation Zhi Cui author Yanran Li author Jiayi Zhang author Jianwei Cui author Chen Wei author Bin Wang author 2020-11 text Findings of the Association for Computational Linguistics: EMNLP 2020 Trevor Cohn editor Yulan He editor Yang Liu editor Association for Computational Linguistics Online conference publication cui-etal-2020-focus 10.18653/v1/2020.findings-emnlp.183 https://aclanthology.org/2020.findings-emnlp.183/ 2020-11 2021 2030