From Sparse to Dense: GPT-4 Summarization with Chain of Density Prompting Griffin Adams author Alex Fabbri author Faisal Ladhak author Eric Lehman author Noémie Elhadad 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 adams-etal-2023-sparse 10.18653/v1/2023.newsum-1.7 https://aclanthology.org/2023.newsum-1.7/ 2023-12 68 74