Juyi Sheng

I am a Ph.D. student in Computer Science and Technology at Peking University, advised by Prof. Mengyuan Liu. My research interests include robot manipulation, robotics, and embodied AI.

I received my master's degree from the University of Chinese Academy of Sciences, where I was advised by Sheng Xu, Yongsheng Ou, and Wujing Cao.

Portrait of Juyi Sheng

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Publications

Selected recent work · Full list on Google Scholar

Geometry-Informed Contact Optimization and Model Predictive Control for Efficient Contact-Rich Manipulation

Sheng Liu, Lei Yan, Juyi Sheng, Pengfei Xia, Haibo Zhang, Mengyuan Liu, Wenfu Xu

IEEE Robotics and Automation Letters, 2026

An energy-consistent contact model encodes friction-cone and object geometry through an anisotropic metric, yielding smooth contact dynamics without complementarity constraints. Combined with contact-implicit MPC, it selects robust contact regions and controls object motion efficiently for dexterous manipulation.

Trustworthy Evaluation of Robotic Manipulation: A New Benchmark and AutoEval Methods

Mengyuan Liu, Juyi Sheng, Peiming Li, Ziyi Wang, Tianming Xu, Tiantian Xu, Hong Liu

arXiv preprint, 2026

TERM introduces the Eval-Actions benchmark and AutoEval models to assess execution quality and source authenticity. Spatio-temporal visual aggregation, kinematic supervision, and reasoning-based optimization enable evaluation beyond binary success and distinguish policy rollouts from human teleoperation.

MP1: MeanFlow Tames Policy Learning in 1-step for Robotic Manipulation

Juyi Sheng, Ziyi Wang, Peiming Li, Mengyuan Liu

AAAI Conference on Artificial Intelligence, 2026

MP1 combines 3D point-cloud observations with MeanFlow to generate action trajectories in one network evaluation. Classifier-free guidance improves controllability, while a lightweight dispersive loss separates scene features, enabling fast and accurate manipulation without iterative denoising.

GPA-RAM: Grasp-Pretraining Augmented Robotic Attention Mamba for Spatial Task Learning

Juyi Sheng, Yangjun Liu, Sheng Xu, Zhixin Yang, Tiantian Xu, Mengyuan Liu

arXiv preprint, 2025

GPA-RAM integrates grasp priors learned from existing task demonstrations with a spatial policy built on attention and Mamba. This pairing improves initial grasp precision and models task context efficiently, making fine-grained manipulation more reliable without collecting extra grasp-pose annotations.

A Stable Learning-Based Method for Robotic Assembly With Motion and Force Measurements

Juyi Sheng, Yifeng Tang, Sheng Xu, Fangning Tan, Ruiming Hou, Tiantian Xu

IEEE Transactions on Industrial Electronics, 2024

A learning-based controller combines position, velocity, and force measurements from human demonstrations to generate joint angular acceleration commands for assembly. Automatic data labeling, Lyapunov analysis, and Lipschitz constraints support stable contact behavior across connector-insertion tasks.

Earlier Publications

2023 · IEEE International Conference on Real-time Computing and Robotics (RCAR)