Improving Unsupervised Extractive Summarization with Facet-Aware Modeling Xinnian Liang author Shuangzhi Wu author Mu Li author Zhoujun Li author 2021-08 text Findings of the Association for Computational Linguistics: ACL-IJCNLP 2021 Chengqing Zong editor Fei Xia editor Wenjie Li editor Roberto Navigli editor Association for Computational Linguistics Online conference publication liang-etal-2021-improving 10.18653/v1/2021.findings-acl.147 https://aclanthology.org/2021.findings-acl.147/ 2021-08 1685 1697