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Why Learning Rediscovers the Closed-Form Diagonal Regularizer

This story is from 2026-09-10. It is preserved in the archive; the latest stories are on the live feed.

arXiv:2609.09656v1 Announce Type: new Abstract: We identify a diagonal saturation principle in modal inverse problems: when truncation noise is isotropic, the Bayes-optimal Tikhonov shape is a closed-form power law Gamma_k proportional to lambda_k^|s| set by the prior alone, independent of the doma…

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  1. 2026-09-10 04:00 · arXiv stat.ML
    Why Learning Rediscovers the Closed-Form Diagonal Regularizer

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