CDL: Curriculum Dual Learning for Emotion-Controllable Response Generation Lei Shen author Yang Feng author 2020-07 text Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics Dan Jurafsky editor Joyce Chai editor Natalie Schluter editor Joel Tetreault editor Association for Computational Linguistics Online conference publication shen-feng-2020-cdl 10.18653/v1/2020.acl-main.52 https://aclanthology.org/2020.acl-main.52/ 2020-07 556 566