Hypothesis testing using multiple data splitting

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Abstract/Contents

Abstract
Data splitting, a tool that is well studied and commonly used for estimation problems such as assessing prediction error, can also be useful in testing problems where a portion of the data can be allocated to make the testing problem easier in some sense, say by estimating or even eliminating nuisance parameters, dimension-reduction, etc.. In single or multiple testing problems that include a large number of parameters, there can be a dramatic increase of power by reducing the number of parameters tested, particularly when the number of non-null parameters is relatively sparse. While there is some loss of power associated with testing on only a fraction of the available data, carefully selecting a test statistic may in turn improve power, though it remains unclear whether the reduction of the number of parameters under consideration can outweigh the loss of power from splitting the data. To combat the inherent loss of power seen with data splitting, methods of combining inference across several splits of the data are developed. The power of these methods is compared with the power of full data tests, as well as tests using only a single split of the data.

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 2018; ©2018
Publication date 2018; 2018
Issuance monographic
Language English

Creators/Contributors

Author DiCiccio, Cyrus J
Degree supervisor Romano, Joseph P, 1960-
Thesis advisor Romano, Joseph P, 1960-
Thesis advisor Taylor, Jonathan E
Thesis advisor Tibshirani, Robert
Degree committee member Taylor, Jonathan E
Degree committee member Tibshirani, Robert
Associated with Stanford University, Department of Statistics.

Subjects

Genre Theses
Genre Text

Bibliographic information

Statement of responsibility Cyrus J. DiCiccio.
Note Submitted to the Department of Statistics.
Thesis Thesis Ph.D. Stanford University 2018.
Location electronic resource

Access conditions

Copyright
© 2018 by Cyrus Jeffrey DiCiccio
License
This work is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported license (CC BY-NC).

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