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QCP: Learning Quality-Controllable Robot Policies with Iterative Hindsight Relabeling

The authors propose Quality-Controllable Policy (QCP), which enables inference-time control over individual quality attributes such as execution speed and motion smoothness, as well as their combinations. To extend the controllable quality range beyond the initial demonstrations, the authors design an iterative hindsight relabeling loop: collect online rollouts under target quality labels, add successful trajectories to the dataset, then relabel the accumulated trajectories in hindsight according to their measured quality and fine-tune the policy.

Part of the event: QCP: Controllable Robot Policy Quality at Inference Time

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