Author

Chun Chen

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Preprint Sep 2026

DecFlowEdit: Self-Localized Flow-based Image Editing via Guidance Decoupling

Flow-based image editing (FlowEdit) enables inversion-free semantic changes through the difference between source and target velocities. In this paper, we observe that FlowEdit's default classifier-free guidance (CFG) configuration, with asymmetric source and target scales, causes substantial background leakage. Matchi...

Zhe-Yuan Zhan, Can Wang, Jia-Wei Chen et al. · 0 citations

#artificial intelligence Preprint Sep 2026

Using Context Is Not Enough: Test-Time Training for Personalized Reward Modeling

Reinforcement learning from human feedback (RLHF) aligns large language models (LLMs) with human preferences, yet most pipelines learn a single reward model that overlooks individual differences in preferences. Personalized reward models (PRMs) address this by conditioning rewards on user-specific feedback, most common...

Bo-Hao Wang, Xiao-Yan Zhao, Yang Zhang et al. · 0 citations