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Yun-Fei Yang

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#machine learning Preprint Sep 2026

Minimax rates for learning spectral Barron functions by deep ReLU neural networks

It is shown that d-dimensional spectral Barron functions with smoothness index $s>0$ can be approximated by deep ReLU neural networks with approximation rate $\widetilde{\mathcal{O}} (S^{-\frac{1}{2}-\frac{s}{d}})$, and it is proved that this convergence rate is minimax optimal up to logarithmic factors.

Song-Qi Ma, Yun-Fei Yang · 0 citations

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