Author

Jing-Wei Sun

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Preprint Oct 2026

Gamma: Grounded Multi-Agent Memory with Mechanical Audit for Memory-Intensive Manipulation

Pretrained vision-language-action (VLA) policies fail on memory tasks, behaviour that depends on events observed long before the current frame, because their training data is overwhelmingly Markov and mapping episodic memory directly to action chunks is hard. Yet the same policy, finetuned once to follow a privileged o...

Yu-Dong Liu, Yueqian Lin, Zi-Jia Tang et al. · 0 citations

#artificial intelligence Preprint Oct 2026

Steering Vision-Language Models for Visual-Contextual Privacy in Location Disclosure

An inference-time route-and-steer framework is proposed: an ordinal granularity router maps visual-contextual privacy representations to a disclosure route, and a disclosure-level-conditioned steering module applies route-specific hidden-state interventions during decoding.

Wen-Yue Chen, Yu-Han Cheng, Ruixin Yang et al. · 0 citations

Preprint Oct 2026

TMT: Runtime Backdoor Detection for Vision-Language-Action Policies on Unseen Tasks

Backdoored vision-language-action (VLA) policies can preserve benign task performance while producing malicious actions when a trigger appears. Detecting such activation is difficult because malicious behavior can comprise individually plausible actions, while unfamiliar tasks introduce legitimate changes in observatio...

Zi-Run Zhou, Jing-Feng Zhang, Hao-Chuan Xu et al. · 0 citations