Co-Feedback Ranking for Query-Focused Summarization Furu Wei author Wenjie Li author Yanxiang He author 2009-08 text Proceedings of the ACL-IJCNLP 2009 Conference Short Papers Keh-Yih Su editor Jian Su editor Janyce Wiebe editor Haizhou Li editor Association for Computational Linguistics Suntec, Singapore conference publication wei-etal-2009-co https://aclanthology.org/P09-2030/ 2009-08 117 120