Author

Zi-Yu Zhou

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Preprint Aug 2026

HarMoE: Multi-Source Chest Radiograph Pretraining with Dataset-Disentangled Experts

Recent vision-language models for chest X-ray understanding are largely built on image-report alignment and therefore rely heavily on MIMIC-CXR as the dominant pretraining source. While effective at scale, this paradigm underexplores an important alternative source of supervision: a range of existing multi-label classi...

Haozhe Luo, Zi-Yu Zhou, Shelley Zixin Shu et al. · 0 citations

Jul 2026

TCLA: Training-Free Class-wise Logit Adaptation for Medical Vision-Language Models

TCLA corrects inference logits based on a small set of support samples, boosting pretrained VLMs performance by improving inter-class deconfusion and reducing domain shift, and consistently improves OOD performance of Medical VLMs and outperforms existing training-based adaptation methods.

Tianyou Jiang, Ziyu Zhou · arXiv.org · 0 citations