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Yuanchun Shi

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#artificial intelligence Preprint Sep 2026

Diffusion Reward Models

Reward models underpin the alignment of large language models, yet the dominant designs reduce each prompt--response pair to a point estimate or to a distribution from a fixed parametric family. This is at odds with human preference, which is inherently multimodal: the same response can be reasonably judged in many way...

Xiang-Yang Wang, Bing-Xiang He, Ze-Yuan Liu et al. · 0 citations
Jul 2026

PAGE: Towards Practical Human-level Gaze Target Estimation

The architectural improvements and novel training recipe allow PaGE to achieve state-of-the-art performance on several gaze estimation tasks, outperforming humans in 7 out of 9 metrics while reducing the human-AI gap by at least 60% in the remaining 2.

Zhou-Tong Ye, Cheng-Wen Zhang, Zhai-Bin Cui et al. · 0 citations

U-Lens: Supporting User Uncertainty Management in Long-Form LLM Responses

U-Lens improves verification efficiency and effort allocation, reduced perceived workload, and strengthened support across all three stages of uncertainty management, and reframes uncertainty support for generative AI from text-centered cues to a user-centered process of interpreting, evaluating, and acting on uncertai...

Yu Mei, Qingyue Zhuang, Jie Cai et al. · 0 citations

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