Promoting Topic Coherence and Inter-Document Consorts in Multi-Document Summarization via Simplicial Complex and Sheaf Graph Yash Kumar Atri author Arun Iyer author Tanmoy Chakraborty author Vikram Goyal author 2023-12 text Proceedings of the 2023 Conference on Empirical Methods in Natural Language Processing Houda Bouamor editor Juan Pino editor Kalika Bali editor Association for Computational Linguistics Singapore conference publication atri-etal-2023-promoting 10.18653/v1/2023.emnlp-main.133 https://aclanthology.org/2023.emnlp-main.133/ 2023-12 2154 2166