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RedFlow: Redirect Failure into Action-level Corrections for Flow-matching VLA Policy

Yan, Zhengyang et al.
arXiv (All) · Papers
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robotics
Reinforcement learning (RL) can improve Vision-Language-Action (VLA) policies from deployment experience, but reward- and preference-based RL primarily identifies desirable behaviors without specifying how to correct failed actions, underutilizing failure trajectories and limiting sample efficiency.
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