On-Policy RL Meets Off-Policy Experts: Harmonizing Supervised Fine-Tuning and Reinforcement Learning via Dynamic Weighting - Zhang, Wenhao; Xie, Yuexiang; Sun, Yuchang; Chen, Yanxi; Wang, Guoyin; Li, Yaliang; Ding, Bolin; Zhou, Jingren (International Conference on Learning Representations, 2026)