Explore-on-Graph: Incentivizing Autonomous Exploration of Large Language Models on Knowledge Graphs with Path-refined Reward Modeling - Yan, Shiqi; Chen, Yubo; Zhou, Ruiqi; Yao, Zhengxi; Chen, Shuai; Zhang, Tianyi; Zhang, Shijie; Zhang, Wei-Qiang; Huang, Yongfeng; Duan, Haixin; Zhang, Yunqi (International Conference on Learning Representations, 2026)