Author

Shi-Yuan Zhang

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#machine learning Preprint Sep 2026

SAGE: Salient Factor Discovery and Generation with Visual Foundation Representations

Given a target dataset, such as faces with eyeglasses, and a background dataset, such as faces without, contrastive analysis separates \textit{salient} factors specific to the target from \textit{common} content shared by both. We aim for salient representations that capture target-specific detail in each image, such a...

Shuang Liang, Le-Jun Liao, Shi-Yuan Zhang et al. · 0 citations

#machine learning Preprint Sep 2026

Contamination, Prior, or Evidence? Decomposing and Training Evidence Use in Whole-Slide Vision-Language Models

Pathology vision-language models (VLMs) are conventionally evaluated by accuracy, but accuracy alone does not measure evidence use: it may conflate dataset contamination, prior knowledge, and image evidence. In a motivating study of lymph-node metastasis prediction, we found that most public pathology VLMs showed minim...

Wen-Hao Zhang, Zhong-Liang Zhou, Shi-Yuan Zhang et al. · 0 citations