Author

Yuanfan Xu

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Preprint Sep 2026

RoboDrop: Curating VLA Post-Training Data via Local Gradient Compatibility

Vision--language--action (VLA) models acquire broad generalization through large-scale pretraining, yet adapting them to a new task and robot embodiment still requires post-training on newly collected data. Unlike pretraining, post-training targets task- and embodiment-specific adaptation, making it particularly sensit...

Run-Ze Xu, Yuan-Fan Xu, Cui-Jie Xu et al. · 0 citations