Topics in exact asymptotics for high-dimensional regression

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Abstract/Contents

Abstract
Exact asymptotic theory refers to a collection of techniques for precisely characterizing the distribution of high-dimensional regression estimators. Examples of the estimators it characterizes include the Lasso, ridge regression, the elastic net, and SLOPE, among others. The theory requires strong assumptions---Gaussian and sometimes independent covariates---and is usually developed for one restricted class of estimators at a time. This thesis expands the scope of exact asymptotic theory by providing generalizations to symmetric but possibly non-separable penalties with independent covariates and to correlated covariates in the context of the Lasso. Further, it provides novel exact asymptotic characterizations of the joint distribution of two regression estimators computed on the same data. It applies these developments and existing theory to important statistical problems, including optimal penalty design, adaptive estimation, inference with the debiased Lasso, hyperparameter tuning, and consistent estimation of low-dimensional parameters when high-dimensional nuisance parameters cannot be estimated well.

Description

Type of resource text
Form electronic resource; remote; computer; online resource
Extent 1 online resource.
Place California
Place [Stanford, California]
Publisher [Stanford University]
Copyright date 2021; ©2021
Publication date 2021; 2021
Issuance monographic
Language English

Creators/Contributors

Author Celentano, Michael Vincent
Degree supervisor Montanari, Andrea
Thesis advisor Montanari, Andrea
Thesis advisor Candès, Emmanuel J. (Emmanuel Jean)
Thesis advisor Donoho, David Leigh
Degree committee member Candès, Emmanuel J. (Emmanuel Jean)
Degree committee member Donoho, David Leigh
Associated with Stanford University, Department of Statistics

Subjects

Genre Theses
Genre Text

Bibliographic information

Statement of responsibility Michael Celentano.
Note Submitted to the Department of Statistics.
Thesis Thesis Ph.D. Stanford University 2021.
Location https://purl.stanford.edu/hr472kk9683

Access conditions

Copyright
© 2021 by Michael Vincent Celentano
License
This work is licensed under a Creative Commons Attribution 3.0 Unported license (CC BY).

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