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Yuxuan Liu

Renmin University of China

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Preprint Sep 2026

VISTA: Internalizing Collective Visual Experience via On-Policy Distillation for Active Multimodal Agents

Active multimodal agents use visual tools to acquire task-relevant evidence while reasoning. Although reinforcement learning samples multiple interaction trajectories per input, outcome-based objectives primarily use the group to estimate scalar advantages, leaving complementary visual discoveries underused. We introdu...

Zheng Jiang, Hou-De Qian, Yi-Ming Chen et al. · 0 citations
Preprint Aug 2026

AppDeltaWorld: Transition-Grounded Delta Code World Model for Mobile GUI Agents

AppDeltaWorld is proposed, a transition-grounded delta code world model that predicts the next GUI as a reachable code update rather than as an unconstrained image or text description, and achieves the highest fidelity on CMGUIBench-500 under Code2World evaluation.

Weikai Xu, Yu Feng, Haoxiang Lei et al. · 1 citation

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