Heterogeneous Graph Transformer for Graph-to-Sequence Learning Shaowei Yao author Tianming Wang author Xiaojun Wan 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 yao-etal-2020-heterogeneous 10.18653/v1/2020.acl-main.640 https://aclanthology.org/2020.acl-main.640/ 2020-07 7145 7154