Heterogeneous Graph Neural Networks for Extractive Document Summarization Danqing Wang author Pengfei Liu author Yining Zheng author Xipeng Qiu author Xuanjing Huang 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 wang-etal-2020-heterogeneous 10.18653/v1/2020.acl-main.553 https://aclanthology.org/2020.acl-main.553/ 2020-07 6209 6219