Mars: Modeling Context & State Representations with Contrastive Learning for End-to-End Task-Oriented Dialog Haipeng Sun author Junwei Bao author Youzheng Wu author Xiaodong He author 2023-07 text Findings of the Association for Computational Linguistics: ACL 2023 Anna Rogers editor Jordan Boyd-Graber editor Naoaki Okazaki editor Association for Computational Linguistics Toronto, Canada conference publication sun-etal-2023-mars 10.18653/v1/2023.findings-acl.708 https://aclanthology.org/2023.findings-acl.708/ 2023-07 11139 11160