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Ziyao Zeng

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#machine learning Preprint Sep 2026

Dexterous Tactile World Model

World models for manipulation are typically trained from video, yet the events that determine how manipulation unfolds, such as making and releasing contact, are difficult to observe visually and are often easier to sense through touch. We present the Dexterous Tactile World Model (DTWM), a video world model for future...

Zi-Yao Zeng, Xiatao Sun, Hao Wang et al. · 0 citations
Preprint Sep 2026

Decoupling Vision, Language, and Action for Efficient Multi-Task Robot Policies

Vision-Language-Action (VLA) policies commonly run Vision-Language Model (VLM) backbones with billions of parameters at every policy inference, which costs latency and energy. We revisit a decoupled alternative for multi-task manipulation: separate vision and language encoders whose representations condition a compact...

Xia-Tao Sun, Chen Liang, Zi-Yao Zeng et al. · 2 citations
Preprint Jul 2026

Artificial Foveated Perception for Mitigating Shortcut Learning in Robotic Foundation Models

Artificial Foveated Perception is proposed, a lightweight, policy-agnostic module that takes the same vision and language inputs as Vision-Language-Action and World Action Model pipelines and predicts task-conditioned masks over relevant objects, the robot, and other action-critical regions and reduces fine-tuning time...

Xia-Tao Sun, Yuan Zhuang, Mateo Sanchez Lopez Negrete et al. · 0 citations

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