Tree Transformer: Integrating Tree Structures into Self-Attention Yaushian Wang author Hung-Yi Lee author Yun-Nung Chen author 2019-11 text Proceedings of the 2019 Conference on Empirical Methods in Natural Language Processing and the 9th International Joint Conference on Natural Language Processing (EMNLP-IJCNLP) Kentaro Inui editor Jing Jiang editor Vincent Ng editor Xiaojun Wan editor Association for Computational Linguistics Hong Kong, China conference publication wang-etal-2019-tree 10.18653/v1/D19-1098 https://aclanthology.org/D19-1098/ 2019-11 1061 1070