SMRT Chatbots: Improving Non-Task-Oriented Dialog with Simulated Multiple Reference Training Huda Khayrallah author João Sedoc author 2020-11 text Findings of the Association for Computational Linguistics: EMNLP 2020 Trevor Cohn editor Yulan He editor Yang Liu editor Association for Computational Linguistics Online conference publication khayrallah-sedoc-2020-smrt 10.18653/v1/2020.findings-emnlp.403 https://aclanthology.org/2020.findings-emnlp.403/ 2020-11 4489 4505