Author

Chunhua Shen

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Preprint Oct 2026

PerturBot: Breaking Shortcut Priors in Vision-Language-Action Models with Perturbative Training

A vision--language--action (VLA) policy can complete complex tasks while ignoring the evidence that should determine its actions. An object held near the wrist camera can displace the instructed target. Language and action show the same pattern: a familiar noun can trigger the operation it was paired with in training e...

Ming-Yu Liu, Chong-Hao Sima, Tianjian Feng et al. · 0 citations

Jul 2026

InternVLA-A1.5: Unifying Understanding, Latent Foresight, and Action for Compositional Generalization

InternVLA-A1.5 is presented, which builds the policy on a native VLM backbone that keeps training on VQA and subtask prediction, and attaches a lightweight unified expert for continuous action generation, and achieves the best overall results on all six simulation benchmarks.

Haoxiang Ma, Junhao Cai, Xiaoxu Xu et al. · arXiv.org · 10 citations · ⚡1