PLATO-2: Towards Building an Open-Domain Chatbot via Curriculum Learning Siqi Bao author Huang He author Fan Wang author Hua Wu author Haifeng Wang author Wenquan Wu author Zhen Guo author Zhibin Liu author Xinchao Xu author 2021-08 text Findings of the Association for Computational Linguistics: ACL-IJCNLP 2021 Chengqing Zong editor Fei Xia editor Wenjie Li editor Roberto Navigli editor Association for Computational Linguistics Online conference publication bao-etal-2021-plato 10.18653/v1/2021.findings-acl.222 https://aclanthology.org/2021.findings-acl.222/ 2021-08 2513 2525