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When the Preconditioning Exponent Turns Negative: Learning-Rate Coupling and Cross-Environment Generalization

arXiv:2609.30271v1 Announce Type: new Abstract: Adaptive optimizers are commonly parameterized by a fixed power of the second-moment estimate. Existing partially adaptive methods study exponents between momentum-like updates and the standard Adam square root, while the interaction between this expo…

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  1. 2026-09-28 04:00 · arXiv cs.LG
    When the Preconditioning Exponent Turns Negative: Learning-Rate Coupling and Cross-Environment Generalization

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