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math.ST updates on arXiv.org

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An elementary analysis of ridge regression with random design
Jaouad Mourtada, Lorenzo Rosasco · 2022-03-16 · via math.ST updates on arXiv.org

In this note, we provide an elementary analysis of the prediction error of ridge regression with random design. The proof is short and self-contained. In particular, it bypasses the use of Rudelson's deviation inequality for covariance matrices, through a combination of exchangeability arguments, matrix perturbation and operator convexity.

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