Author

Hongyuan Zhu

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Preprint Aug 2026

V-Rubrics: Visual Faithfulness via Rubric-Based Reinforcement Learning

Vision-language models can produce fluent answers that are insufficiently grounded in the visual evidence: a single unsupported object, chart value, or intermediate inference can undermine an otherwise plausible response. We argue that this is a credit-assignment failure in multimodal post-training. Scalar outcome rewa...

Shu-Lin Tian, Ming-Lun Li, Yuhao Dong et al. · 0 citations

Preprint Aug 2026

Open Evaluation Agent: Efficient and Promptable Evaluation of Visual Generative Models

The Evaluation Agent framework is proposed, which employs human-like strategies for efficient, dynamic, multi-round evaluations, offering detailed, user-tailored analyses and is efficient, promptable, explainable, and scalable across models and tools.

Shu-Lin Tian, Zi-Qi Huang, Fan Zhang et al. · 2 citations