ConvLab-2: An Open-Source Toolkit for Building, Evaluating, and Diagnosing Dialogue Systems Qi Zhu author Zheng Zhang author Yan Fang author Xiang Li author Ryuichi Takanobu author Jinchao Li author Baolin Peng author Jianfeng Gao author Xiaoyan Zhu author Minlie Huang author 2020-07 text Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics: System Demonstrations Asli Celikyilmaz editor Tsung-Hsien Wen editor Association for Computational Linguistics Online conference publication zhu-etal-2020-convlab 10.18653/v1/2020.acl-demos.19 https://aclanthology.org/2020.acl-demos.19/ 2020-07 142 149