Encoded but Not in Control: Revealing the Grounding Gap in Vision-Language Robot Policies
Instruction following is central to language-conditioned robot policies: language should determine what to do when the same scene permits multiple valid actions. Yet successful execution alone cannot establish whether a policy follows the instruction or infers the task from the scene. We study this ambiguity through sc...
Shao-Han Jiang, Jia-Hang Cao, Qi-Duo He et al.
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