Naturalness Evaluation of Natural Language Generation in Task-oriented Dialogues Using BERT Ye Liu author Wolfgang Maier author Wolfgang Minker author Stefan Ultes author 2021-09 text Proceedings of the International Conference on Recent Advances in Natural Language Processing (RANLP 2021) Ruslan Mitkov editor Galia Angelova editor INCOMA Ltd. Held Online conference publication liu-etal-2021-naturalness https://aclanthology.org/2021.ranlp-1.96/ 2021-09 839 845