AIBullisharXiv – CS AI · 8h ago6/10
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Knowledge Transfer Scaling Laws for 3D Medical Imaging
Researchers demonstrate that different 3D medical imaging domains (CT, MRI, PET) transfer knowledge asymmetrically during pretraining, following predictable power-law patterns. By optimizing data allocation based on these transfer dynamics, they achieve up to 58% performance gains over proportional sampling, revealing a hub-and-island structure where certain domains act as foundational knowledge sources for others.