Author

Xunlan Zhou

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#machine learning Preprint Sep 2026

SAMBAR: Selective Anchoring via Method of Multipliers for Balanced Knowledge Acquisition and Retention in Vision-Language-Action Models

Vision-Language-Action (VLA) models leverage large-scale pretraining to ultimately achieve generalist manipulation. Deployed VLA policies must support continual learning to acquire new tasks over time. Teaching a VLA a new task generally requires finetuning it on demonstrations of that task. However, naively finetuning...

Aayushi Shrivastava, Xunlan Zhou, Hong-Ru Zhao et al. · 0 citations

#artificial intelligence Preprint Sep 2026

Beyond Conservatism: Recoverability-Conditioned Exploration for Model-Based Imitation Learning

Experiments on locomotion, navigation and manipulation show consistent gains in interaction efficiency, imitation performance, and robustness, indicating that RECON directs real-environment interaction toward recovery regions around the expert distribution that are underexplored by prior methods, and thereby learns a w...

Xuan-Lin Chen, Zi-Yue Wang, Xunlan Zhou et al. · 0 citations