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Pengyang Yu

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Preprint Aug 2026

Auditing Medical Vision-Language Models on Chest Radiographs: Estimating Reference Agreement Across Institutions

Three generative vision-language models were evaluated on three institutional chest-radiograph corpora and six findings under two elicitation protocols, comprising more than 345,000 finding-level predictions, and estimated finding-by-direction reference agreement at a receiving institution from a small budget of local...

Peng-Yang Yu, Yio Wang, Zhong-Ping Dong et al. · 0 citations
Review Open access Jul 2026

Fairness in federated medical imaging: a systematic review through the dual fairness lens

This constitutes the first systematic review to formally analyze the gradient-level conflict between collaboration fairness and group fairness in federated medical imaging, while also providing a structured causal analysis of equipment–demographic confounding, offering both a critical synthesis and actionable direction...

Pengyang Yu, Zhongping Dong, S. Dhelim et al. · 0 citations

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