Author

Feng Yan

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#artificial intelligence Preprint Sep 2026

VLA-Precision: Asymmetric Co-Bootstrapping for Efficient Real-World Online RL of Vision-Language-Action Models

VLA-Precision, an efficient real-world online RL framework featuring the Asymmetric Co-Bootstrapping (ACoB) algorithm and the ACoB-Stream architecture, and ACoB-Stream, a closed-loop experience--policy architecture that establishes invariant-state decoupling and on-demand streaming as design principles, deliver up to 1...

Chen-Yu Su, Zhao-Long Shen, Yuan Qian et al. · 0 citations

#artificial intelligence Apr 2026

CF-VLA: Efficient Coarse-to-Fine Action Generation for Vision-Language-Action Policies

This work proposes CF-VLA, a coarse-to-fine two-stage formulation that restructures action generation into a coarse initialization step that constructs an action-aware starting point, followed by a single-step local refinement that corrects residual errors.

Fan Du, Feng Yan, Jian-Xiong Wu et al. · arXiv.org · 0 citations