OpenAsp: A Benchmark for Multi-document Open Aspect-based Summarization Shmuel Amar author Liat Schiff author Ori Ernst author Asi Shefer author Ori Shapira author Ido Dagan 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 amar-etal-2023-openasp 10.18653/v1/2023.emnlp-main.121 https://aclanthology.org/2023.emnlp-main.121/ 2023-12 1967 1991