Improving Multi-Stage Long Document Summarization with Enhanced Coarse Summarizer Jinhyeong Lim author Hyun-Je Song author 2023-12 text Proceedings of the 4th New Frontiers in Summarization Workshop Yue Dong editor Wen Xiao editor Lu Wang editor Fei Liu editor Giuseppe Carenini editor Association for Computational Linguistics Singapore conference publication lim-song-2023-improving 10.18653/v1/2023.newsum-1.13 https://aclanthology.org/2023.newsum-1.13/ 2023-12 135 144