الباحثون

Guoheng Sun

المنشورات 4

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DIVA: Dual-Space Intent-Aware Visual Attenuation for Vision-Language-Action Policies

Kaixi Feng, Guoheng Sun, Ziyao Wang وآخرون · 2026

Vision-language-action (VLA) policies typically feed dense visual patch tokens into a language-action backbone, preserving scene context but offering no explicit mechanism to regulate how strongly different visual tokens influence policy computation. We introduce DIVA, a Dual-Space Intent-Aware Visual Attenuation modul …

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XGenAct: Geometry-Enhanced World Action Models through Cross-Task Generation

Tingting Du, Ziyao Wang, Guoheng Sun وآخرون · 2026

World action models (WAMs) have advanced robot control by predicting how observations and actions evolve over time. Despite this progress, RGB and action based future prediction does not explicitly address the spatial understanding needed for robot manipulation. Existing efforts often add a limited set of spatial predi …

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Staircase Policy: Streaming Inference for World-Action Models with Large Action Chunks

Guoheng Sun, Chen Chen, Jin Wang وآخرون · 2026

World-Action Models (WAMs) improve robotic manipulation by conditioning action generation on predicted future observations, but future prediction adds further inference overhead to already expensive iterative action generation. Action chunking can amortize this cost over multiple actions, yet performance degrades over …

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