CASTER: Gradient-Free Test-Time Adaptation with a Transportability Certificate
Talan · hf · 2026-09-03
A new method on Hugging Face, CASTER (Affine Statistics Transport), enables gradient-free test-time adaptation for frozen models: it transports source class distributions via affine transformations in a discriminative subspace, adapting without backpropagation.
Its distinguishing feature is a transportability certificate that gates unreliable updates, reducing the risk of test-time adaptation.
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