Referee: Reference-Free Sentence Summarization with Sharper Controllability through Symbolic Knowledge Distillation Melanie Sclar author Peter West author Sachin Kumar author Yulia Tsvetkov author Yejin Choi author 2022-12 text Proceedings of the 2022 Conference on Empirical Methods in Natural Language Processing Yoav Goldberg editor Zornitsa Kozareva editor Yue Zhang editor Association for Computational Linguistics Abu Dhabi, United Arab Emirates conference publication sclar-etal-2022-referee 10.18653/v1/2022.emnlp-main.655 https://aclanthology.org/2022.emnlp-main.655/ 2022-12 9649 9668