Mix-of-Granularity: Optimize the Chunking Granularity for Retrieval-Augmented Generation Zijie Zhong author Hanwen Liu author Xiaoya Cui author Xiaofan Zhang author Zengchang Qin author 2025-01 text Proceedings of the 31st International Conference on Computational Linguistics Owen Rambow editor Leo Wanner editor Marianna Apidianaki editor Hend Al-Khalifa editor Barbara Di Eugenio editor Steven Schockaert editor Association for Computational Linguistics Abu Dhabi, UAE conference publication zhong-etal-2025-mix https://aclanthology.org/2025.coling-main.384/ 2025-01 5756 5774