Towards explainable AI : feature significance and importance for machine learning models

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Abstract/Contents

Abstract
Recent machine learning models such as neural networks underpin many of the best-performing AI systems. Their success is largely due to their strong approximation properties, superior predictive performance, and scalability. However, a major caveat is explainability: these models are often perceived as black boxes that permit little insight into how predictions are being made. We tackle this issue by developing various tests to assess the statistical significance and importance of the input features of machine learning models with a special emphasis on neural networks. The tests enable one to discern the impact of individual variables as well as interactions of variables on the prediction of a model. The test statistics can be used to rank variables according to their influence and be used to perform model selection. Simulations and applications on various real data illustrate the computational efficiency and performance of the tests

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 2020; ©2020
Publication date 2020; 2020
Issuance monographic
Language English

Creators/Contributors

Author Horel, Enguerrand Marie Yves Nicolas
Degree supervisor Giesecke, Kay
Thesis advisor Giesecke, Kay
Thesis advisor Lai, T. L
Thesis advisor Pelger, Markus
Degree committee member Lai, T. L
Degree committee member Pelger, Markus
Associated with Stanford University, Institute for Computational and Mathematical Engineering.

Subjects

Genre Theses
Genre Text

Bibliographic information

Statement of responsibility Enguerrand Horel
Note Submitted to the Institute for Computational & Mathematical Engineering
Thesis Thesis Ph.D. Stanford University 2020
Location electronic resource

Access conditions

Copyright
© 2020 by Enguerrand Marie Yves Nicolas Horel
License
This work is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported license (CC BY-NC).

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