Author

Yi-Heng Zhang

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Preprint Sep 2026

PartLLM: A Unified Multimodal Foundation for 3D Part Segmentation

Part segmentation is a fundamental problem in computer graphics and 3D vision. Recent works have expanded 3D part segmentation beyond fixed taxonomies, but existing approaches typically only address a specific setting, such as text-guided part segmentation or point-based interaction. In this work, we argue that these s...

Zhe Zhu, Yi-Heng Zhang, Peng Li et al. · 1 citation

#small language model Preprint Aug 2026

OPDSearch+: On-Policy Distillation with RL Refinement for Search-Augmented Reasoning

The role of a frozen off-the-shelf instruct model as the teacher in on-policy distillation is investigated, and a key insight is revealed: the teacher reshapes the student's policy distribution so that subsequent RL converges to a superior solution that RL alone cannot reach.

Qi Ye, Zhi-Yuan Gu, Jingjie Xia et al. · 1 citation