On Controlling Fallback Responses for Grounded Dialogue Generation Hongyuan Lu author Wai Lam author Hong Cheng author Helen Meng author 2022-05 text Findings of the Association for Computational Linguistics: ACL 2022 Smaranda Muresan editor Preslav Nakov editor Aline Villavicencio editor Association for Computational Linguistics Dublin, Ireland conference publication lu-etal-2022-controlling 10.18653/v1/2022.findings-acl.204 https://aclanthology.org/2022.findings-acl.204/ 2022-05 2591 2601