[Submitted on 14 Oct 2026]
Title:Persistent Profile-Guided Reset-Free Recovery Improves Final Gait Selection after Irreversible Leg Damage
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Abstract:Damage-recovery algorithms often rank gaits from short trials, yet a gait that performs well briefly may not remain effective during continued execution. In reset-free recovery, each trial also changes the physical state inherited by the next. We introduce persistent profile-guided reset-free recovery (PGRR), which predicts multiple outcomes over repeated gait execution and uses conservative uncertainty-aware estimates to guide short online probes without resetting the robot. Across 108 matched MuJoCo tasks spanning leg amputation, distal fracture, and joint lock, PGRR improves final quality by 0.106 and slot-averaged recovery quality (SRQ) by 0.044 relative to an IT&E-inspired Gaussian-process baseline, while reducing low-quality failures by 27.8 percentage points. Final-quality gains occur in all three damage classes. Against no adaptation, PGRR also improves final quality and reduces low-quality failures, whereas the aggregate SRQ difference is inconclusive. Development ablations identify conservative uncertainty handling as the clearest supported contributor to the observed gains. These results show that PGRR can identify stronger post-damage gaits under continuous physical state and that final-gait quality and recovery-summary performance provide complementary evidence for evaluating reset-free recovery.
Comments: 7 pages, 4 figures, 3 tables
Subjects:
Robotics (cs.RO)
Cite as: arXiv:2610.20838 [cs.RO]
(or arXiv:2610.20838v1 [cs.RO] for this version)
https://doi.org/10.48550/arXiv.2610.20838
arXiv-issued DOI via DataCite (pending registration)
Submission history
From: Minjoong Kim [view email] [v1] Wed, 14 Oct 2026 19:26:09 UTC (416 KB)
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