Author

Yu-Hui Chen

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Preprint Nov 2026

Beyond Policy Patches: Distilling RL Specialists into Vision-Language-Action Policies

Vision-language-action (VLA) policies can handle noncritical stages of long-horizon manipulation yet fail during short precision-critical phases. Lightweight reinforcement learning (RL) specialists can address these failures without directly applying RL to the full VLA, but retain auxiliary controllers and switching me...

Zhen-Nan Jiang, Ting-Ying Xie, Shi-Long Ji et al. · 0 citations

Open access Oct 2026

FisherShield: Sequential D-Optimal Anti-Rewards for Deployment-Time Reward Privacy in Reinforcement Learning

Reinforcement learning is increasingly deployed in autonomous systems whose reward functions encode operational priorities and decision-making objectives. However, observable behavior can enable external observers to infer sensitive reward parameters through inverse reinforcement learning. Existing deployment-time defe...

Guang-Yu Pan, Yao Chen, Bo Hou et al. · Algorithms · 0 citations