Authors

Jianshu Zhang

Publications 2

Preprint Open access

ProgressCompass: Embodied Progress Reward Models Are Lost Without the Right Context

Jianshu Zhang, Keliang Wu, Chengxuan Qian et al. · 2026

Embodied agents now take on ever longer tasks. For long tasks, knowing only whether a task finally succeeds or fails says little; the steps along the way matter. Progress Reward Models (PRMs) score how far a task has come at every step, and serve as dense rewards, verifiers and monitors. Yet in long tasks the current f …

Preprint Open access

Video2Skill: From Streaming Experience to Reusable Embodied Skills

Jianshu Zhang, Ce Zhang, Xiyuan Yang et al. · 2026

Manipulation behaviors vary widely across objects and scenes, but they share a small set of reusable skills, and planning with these skills helps embodied agents generalize to new tasks. Yet an agent can only plan with skills it knows. Recovering skills from observed experience, the inverse of planning, builds this kno …

Co-authors

Ce Zhang Xiyuan Yang Chenwei Xu Haoran Lu Yijiang Li Yaqi Xie Katia P. Sycara Han Liu Keliang Wu Chengxuan Qian Ariel Tian Anbang Liu