@inproceedings{yuan-etal-2020-fact, title = "Fact-level Extractive Summarization with Hierarchical Graph Mask on {BERT}", author = "Yuan, Ruifeng and Wang, Zili and Li, Wenjie", editor = "Scott, Donia and Bel, Nuria and Zong, Chengqing", booktitle = "Proceedings of the 28th International Conference on Computational Linguistics", month = dec, year = "2020", address = "Barcelona, Spain (Online)", publisher = "International Committee on Computational Linguistics", url = "https://preview.aclanthology.org/fix-sig-urls/2020.coling-main.493/", doi = "10.18653/v1/2020.coling-main.493", pages = "5629--5639" }