GRADE: Automatic Graph-Enhanced Coherence Metric for Evaluating Open-Domain Dialogue Systems Lishan Huang author Zheng Ye author Jinghui Qin author Liang Lin author Xiaodan Liang author 2020-11 text Proceedings of the 2020 Conference on Empirical Methods in Natural Language Processing (EMNLP) Bonnie Webber editor Trevor Cohn editor Yulan He editor Yang Liu editor Association for Computational Linguistics Online conference publication huang-etal-2020-grade 10.18653/v1/2020.emnlp-main.742 https://aclanthology.org/2020.emnlp-main.742/ 2020-11 9230 9240