HERALD: An Annotation Efficient Method to Detect User Disengagement in Social Conversations Weixin Liang author Kai-Hui Liang author Zhou Yu author 2021-08 text Proceedings of the 59th Annual Meeting of the Association for Computational Linguistics and the 11th International Joint Conference on Natural Language Processing (Volume 1: Long Papers) Chengqing Zong editor Fei Xia editor Wenjie Li editor Roberto Navigli editor Association for Computational Linguistics Online conference publication liang-etal-2021-herald 10.18653/v1/2021.acl-long.283 https://aclanthology.org/2021.acl-long.283/ 2021-08 3652 3665