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P. Y. Chen

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#artificial intelligence Preprint Sep 2026

From Surfaces to Volumes: Registered Geometry for Protein Representation Learning

Existing protein geometry models typically represent molecular surfaces using local geometric features such as sampled points, normals, and curvature. While effective for capturing exposed molecular shape, these representations do not explicitly model the volumetric organization beneath the surface or provide a consist...

Si-Yuan Chen, Cai Zhou, Jin-Rui Zhang et al. · 0 citations
#artificial intelligence Preprint Sep 2026

WorldAgent: Verification-Guided Agentic Physical World Construction

This work presents WorldAgent, an agentic framework for verification-guided physical world construction from a single natural-language prompt, without iterative user debugging, and introduces AgenticSimBench, on which WorldAgent achieves the best scores among the evaluated agent-based methods on five of seven metrics.

Caoliwen Wang, Meng-Di Wang, Yi-Ge Chen et al. · 0 citations
#artificial intelligence Preprint Sep 2026

DiagGen: Agentic Generation of Deformable Assets with Sim-based Diagnostics for Robotic Simulation

DiagGen is presented, an agentic framework that turns a single in-the-wild image into a simulation-ready deformable asset through a generate--simulate--diagnose--refine loop, and shows that diagnostics provides useful repair cues and can moderately improve the quality of generated deformable assets.

Guan-Xiong Chen, Yi-Duo Qu, Qian-Jun Xia et al. · 1 citation
#small language model Preprint Sep 2026

WorldContact: A Contact-Centric World Model for Scalable Robot Learning

Adapting robots to new objects and tasks requires interaction experience that can be costly to obtain. We present WorldContact, a contact-centric world model for deformable-object manipulation, constructed from a limited set of high-quality trajectories to generate additional training data efficiently. It predicts obje...

Caoliwen Wang, Meng-Di Wang, Heng Zhang et al. · 0 citations
#robotics Jul 2026

Agentic Real2Sim: Physics-based World Modeling with Vision-Language Agents

Agentic Real2Sim is introduced, a framework for generalized physical world modeling with vision-language agents, converting a real-world recording of object-robot interaction into a simulatable episodic twin which preserves observations, geometries, robot interactions, and object states.

Guan-Xiong Chen, Qian-Jun Xia, Jia-Wei Peng et al. · 0 citations
Open access Jul 2026

NeuralActuator: Neural Actuation Modeling for Robot Dynamics and External Force Perception

This work validates NeuralActuator on a 5-DoF OpenManipulator-X, a 6-DoF SO-101 from LeRobot, and a 7-DoF Franka Emika Panda, spanning three actuator families and costs from approximately \$500 to more than \$30{,}000.

Zhiyang Dou, John U. Onyemelukwe, Hang Zhang et al. · 0 citations

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