Dynamic-TreeRPO: Breaking the Independent Trajectory Bottleneck with Structured Sampling. - Xiaolong Fu; Lichen Ma; Zipeng Guo; Gaojing Zhou; Chongxiao Wang; ShiPing Dong; Shizhe Zhou; Ximan Liu; Jingling Fu; Tan Lit Sin; Yu Shi; Zhen Chen; et al. (CoRR, 2025)