Learning an Unreferenced Metric for Online Dialogue Evaluation Koustuv Sinha author Prasanna Parthasarathi author Jasmine Wang author Ryan Lowe author William L Hamilton author Joelle Pineau author 2020-07 text Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics Dan Jurafsky editor Joyce Chai editor Natalie Schluter editor Joel Tetreault editor Association for Computational Linguistics Online conference publication sinha-etal-2020-learning 10.18653/v1/2020.acl-main.220 https://aclanthology.org/2020.acl-main.220/ 2020-07 2430 2441