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#machine learning Preprint Sep 2026

How Accurate Is Accurate Enough?

How accurate must a numerical approximation be within a learning system? Primitive error alone cannot answer this question: errors of the same magnitude can have very different consequences for losses, predictions, and gradients at different learning states. We study this question through the learning objective itself....

Ning-Kang Peng, Qian-Feng Yu, Jing Mao et al. · 0 citations
#machine learning Preprint Sep 2026

Does a Shared Temperature Imply a Shared Angular Scale in Probabilistic Contrastive Learning?

In probabilistic contrastive learning, a shared temperature is commonly interpreted as a shared similarity scale, but this interpretation does not hold for high-dimensional distributional class representations. We study the exact von Mises-Fisher (vMF) probabilistic score used by ProCo when representation dimension and...

Ning-Kang Peng, Qian-Feng Yu, Jing Mao et al. · 0 citations

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