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Yuzhang Shang

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Efficient and Robust VLA Models for Real-Time Robotic Manipulation

This paper aims to reduce latency and the dynamic memory usage of the π 0.5 model by performing timestep distillation on the diffusion process in the π 0.5 action head to create a 3-step diffusion action head.

Shriyadita Medavaram, Lam Nguyen, Yu-Zhang Shang · 0 citations
#artificial intelligence Preprint Sep 2026

Coding Agents with an Obstacle-Aware Harness for Safe Robot Manipulation

Coding agents have emerged as a promising paradigm for robot manipulation: a language model writes the robot controller as a program, and agents built in this way now operate robots without robot-specific training.Whether this paradigm is also safe, however, has not been asked. We evaluate coding agent under a safety c...

Bing-Xin Xu, Yu-Zhang Shang, Zhen-Han Dong et al. · 0 citations
Preprint Aug 2026

Surgical WAM: A World-Action Model for Data-Efficient Surgical Robot Learning

Learning reliable surgical manipulation policies is bottlenecked by the scarcity of action-labeled demonstrations: teleoperated surgical robot (e.g., dVRK) trajectories with synchronized kinematics are costly to collect, while surgical tasks demand precise contact handling, long-horizon reasoning, and bimanual coordina...

Wenrui Bao, Tianyun Jiang, Zhiben Chen et al. · 0 citations

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