Do Center Biases Propagate? Robustness of Pathology Foundation Models in Whole-Slide Image Classification
[Widzenie komputerowe] Autorzy: Ilán Carretero, Pablo Meseguer, Rocío del Amor i 1 więcej
Pathology foundation models (PFMs) have transformed computational pathology through powerful representation learning from histopathological images. PFMs provide rich, discriminative representations for whole slide image (WSI) analysis, enabling tasks such as slide-level classification under multiple instance learning (MIL). However, these representations may also encode non-biological signals associated with acquisition centers, potentially introducing spurious shortcuts into downstream predictions. In this work, we evaluate center-associated robustness in WSI classification using a controlled training setting with increasing class-center correlations quantified by Cramér's V. We benchmark six PFMs across four datasets and two MIL aggregators, while evaluating ComBat as a robustification strategy. We further introduce the Area Under the Cramér's V Curve (AUCC) to jointly capture absolut…
- Kategoria arxiv
- cs.CV
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- Widzenie komputerowe