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High-dimensional analysis of ridge regression for non-identically distributed data with a variance profile
April 1, 2024, 4:44 a.m. | J\'er\'emie Bigot, Issa-Mbenard Dabo, Camille Male
stat.ML updates on arXiv.org arxiv.org
Abstract: High-dimensional linear regression has been thoroughly studied in the context of independent and identically distributed data. We propose to investigate high-dimensional regression models for independent but non-identically distributed data. To this end, we suppose that the set of observed predictors (or features) is a random matrix with a variance profile and with dimensions growing at a proportional rate. Assuming a random effect model, we study the predictive risk of the ridge estimator for linear regression …
abstract analysis arxiv context data distributed distributed data features independent linear linear regression math.pr math.st profile regression ridge set stat.me stat.ml stat.th type variance
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