Discrete Opinion Tree Induction for Aspect-based Sentiment Analysis Chenhua Chen author Zhiyang Teng author Zhongqing Wang author Yue Zhang author 2022-05 text Proceedings of the 60th Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers) Smaranda Muresan editor Preslav Nakov editor Aline Villavicencio editor Association for Computational Linguistics Dublin, Ireland conference publication chen-etal-2022-discrete 10.18653/v1/2022.acl-long.145 https://aclanthology.org/2022.acl-long.145/ 2022-05 2051 2064