Differential Fine-Tuning Large Language Models Towards Better Diverse Reasoning Abilities - Yuan, Xiaosong; Shen, Chen; Yan, Shaotian; liu, kaiyuan; Zhang, Xiaofeng; Fan, Sinan; Xie, Liang; Wang, Wenxiao; Guan, Renchu; Wang, Ying; Ye, Jieping (International Conference on Learning Representations, 2026)