Applications of cooperative game theory to interpretable machine learning

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Abstract/Contents

Abstract
Model-agnostic feature importance measures are central to the task of demystifying opaque or "black-box" machine learning models. The proliferation of such models within high-stakes decision making settings such as healthcare or banking necessitates the development of flexible and trustworthy approaches to the problem. With no ground truth feature importance to compare to, competing methods provide contrasting approaches and/or philosophies often with a claim of superiority. Some of the most popular recent approaches are adaptations of tools from cooperative game theory used in reward or cost sharing problems. In this document, we report on recent advances among such feature importance methods. In particular, we discuss a "data-centric" cohort-based framework for model-agnostic local feature importance using Shapley values. We propose a primary importance measure and explore several adaptations of that method better suited for specific use cases or data regimes. We analyze the properties and behaviors of these methods and apply them to a broad range of synthetic and real-world problem settings including voter registration and recidivism data. We then propose and discuss new methods for local importance aggregation and feature importance evaluation.

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 2023; ©2023
Publication date 2023; 2023
Issuance monographic
Language English

Creators/Contributors

Author Seiler, Benjamin Bradbury
Degree supervisor Owen, Art B
Thesis advisor Owen, Art B
Thesis advisor Palacios Roman, Julia Adela
Thesis advisor Taylor, Jonathan E
Degree committee member Palacios Roman, Julia Adela
Degree committee member Taylor, Jonathan E
Associated with Stanford University, School of Humanities and Sciences
Associated with Stanford University, Department of Statistics

Subjects

Genre Theses
Genre Text

Bibliographic information

Statement of responsibility Benjamin B. Seiler.
Note Submitted to the Department of Statistics.
Thesis Thesis Ph.D. Stanford University 2023.
Location https://purl.stanford.edu/xq291xs8637

Access conditions

Copyright
© 2023 by Benjamin Bradbury Seiler
License
This work is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported license (CC BY-NC).

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