MBA-RAG: a Bandit Approach for Adaptive Retrieval-Augmented Generation through Question Complexity Xiaqiang Tang author Qiang Gao author Jian Li author Nan Du author Qi Li author Sihong Xie 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 tang-etal-2025-mba https://aclanthology.org/2025.coling-main.218/ 2025-01 3248 3254