MACSum: Controllable Summarization with Mixed Attributes Yusen Zhang author Yang Liu author Ziyi Yang author Yuwei Fang author Yulong Chen author Dragomir Radev author Chenguang Zhu author Michael Zeng author Rui Zhang author 2023 text journal article Transactions of the Association for Computational Linguistics continuing MIT Press Cambridge, MA periodical academic journal zhang-etal-2023-macsum 10.1162/tacl_a_00575 https://aclanthology.org/2023.tacl-1.46/ 2023 11 787 803