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Sponsored Artificial Intelligence: A Modern Approach, Global Edition Artificial Intelligence: A Modern Approach, Global Edition

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Hang-Rong Xu

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Preprint Sep 2026

Double Descent for Random Fourier Series Models

We investigate the least squares linear regression problem with random partial Discrete Fourier Transform (DFT) matrices, providing a rigorous analysis of the model's generalization error. By leveraging tools from random matrix theory, we derive exact non-asymptotic bounds for the risk of the Moore-Penrose estimator, w...

Hang-Rong Xu, Ying-Yun Shen, Yu-Zhong Zhao · 0 citations

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