Synthesizing Adversarial Negative Responses for Robust Response Ranking and Evaluation Prakhar Gupta author Yulia Tsvetkov author Jeffrey Bigham 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 gupta-etal-2021-synthesizing 10.18653/v1/2021.findings-acl.338 https://aclanthology.org/2021.findings-acl.338/ 2021-08 3867 3883