Improved Sparse Upcycling for Instruction Tuning Wangyi Jiang author Yaojie Lu author Hongyu Lin author Xianpei Han author Le Sun 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 jiang-etal-2025-improved https://aclanthology.org/2025.coling-main.636/ 2025-01 9485 9498