Author

Youngung Han

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Preprint Sep 2026

Order-Aware 2.5D Multiple Instance Learning for Preoperative MRI-Based Perineural Invasion Risk Assessment in Intrahepatic Cholangiocarcinoma

Perineural invasion (PNI) is an adverse histopathologic marker in intrahepatic cholangiocarcinoma (ICC), but it is usually confirmed only after resection. Preoperative T2-weighted MRI may provide noninvasive imaging cues predictive of PNI, although labels are available only at the patient level without slice- or voxel-...

Hyunsu Go, Youngung Han, Kyeonghun Kim et al. · 0 citations

#machine learning Jul 2026

ProsMAE: Multi-Source MAE Pretraining for ISUP Grade Classification

A multi-source Masked Autoencoder (MAE) framework, named ProsMAE, for histopathology representation learning, which achieved a higher mean validation quadratic weighted kappa (QWK) than the vanilla MAE frozen linear-probe baseline under the evaluated disjoint PANDA split.

Anna Jung, Kyeonghun Kim, Youngung Han et al. · arXiv.org · 0 citations