Author

Xuanyu Chen

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Preprint Sep 2026

Cognitive Action Reasoning for Proactive Robots from Human-Centered Multimodal Observations

Robots operating in human-centered environments are typically designed to execute explicit instructions, and most robot-learning datasets likewise pair observations with task instructions or low-level actions. Although recent work has begun to explore proactive embodied assistance, existing resources target different s...

Zhi-Hao Gu, Kenny Zhu, Yuan-Feng Wu et al. · 0 citations

Jul 2026

VistaVLA: Geometry- and Semantic-Aware 3D Gaussian-Grounded VLA for Robotic Manipulation

This work presents VistaVLA, a novel two-stage framework that constructs a geometry- and semantics-aware 3D cognitive representation from 3D Gaussian primitives and grounds it as compact context tokens for VLA policy learning, and introduces Merge-then-Query (MtQ), a token summarization mechanism.

Mo-Han Liu, Zhihao Gu, Xuanyu Chen et al. · arXiv.org · 0 citations