Explore-on-Graph: Incentivizing Autonomous Exploration of Large Language Models on Knowledge Graphs with Path-refined Reward Modeling. - Shiqi Yan; Yubo Chen 002; Ruiqi Zhou; Zhengxi Yao; Shuai Chen; Tianyi Zhang; Shijie Zhang; Wei Qiang Zhang; Yongfeng Huang 001; Haixin Duan; Yunqi Zhang (CoRR, 2026)