Dependency Graph Enhanced Dual-transformer Structure for Aspect-based Sentiment Classification Hao Tang author Donghong Ji author Chenliang Li author Qiji Zhou author 2020-07 text Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics Dan Jurafsky editor Joyce Chai editor Natalie Schluter editor Joel Tetreault editor Association for Computational Linguistics Online conference publication tang-etal-2020-dependency 10.18653/v1/2020.acl-main.588 https://aclanthology.org/2020.acl-main.588/ 2020-07 6578 6588