Evaluating Fair Feature Selection in Machine Learning for Healthcare

Fuente: arXiv
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Main Authors: Zawad, Md Rahat Shahriar, Washington, Peter
Format: Preprint
Published: 2024
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author Zawad, Md Rahat Shahriar
Washington, Peter
author_facet Zawad, Md Rahat Shahriar
Washington, Peter
contents With the universal adoption of machine learning in healthcare, the potential for the automation of societal biases to further exacerbate health disparities poses a significant risk. We explore algorithmic fairness from the perspective of feature selection. Traditional feature selection methods identify features for better decision making by removing resource-intensive, correlated, or non-relevant features but overlook how these factors may differ across subgroups. To counter these issues, we evaluate a fair feature selection method that considers equal importance to all demographic groups. We jointly considered a fairness metric and an error metric within the feature selection process to ensure a balance between minimizing both bias and global classification error. We tested our approach on three publicly available healthcare datasets. On all three datasets, we observed improvements in fairness metrics coupled with a minimal degradation of balanced accuracy. Our approach addresses both distributive and procedural fairness within the fair machine learning context.
format Preprint
id arxiv_https___arxiv_org_abs_2403_19165
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Evaluating Fair Feature Selection in Machine Learning for Healthcare
Zawad, Md Rahat Shahriar
Washington, Peter
Machine Learning
Computers and Society
With the universal adoption of machine learning in healthcare, the potential for the automation of societal biases to further exacerbate health disparities poses a significant risk. We explore algorithmic fairness from the perspective of feature selection. Traditional feature selection methods identify features for better decision making by removing resource-intensive, correlated, or non-relevant features but overlook how these factors may differ across subgroups. To counter these issues, we evaluate a fair feature selection method that considers equal importance to all demographic groups. We jointly considered a fairness metric and an error metric within the feature selection process to ensure a balance between minimizing both bias and global classification error. We tested our approach on three publicly available healthcare datasets. On all three datasets, we observed improvements in fairness metrics coupled with a minimal degradation of balanced accuracy. Our approach addresses both distributive and procedural fairness within the fair machine learning context.
title Evaluating Fair Feature Selection in Machine Learning for Healthcare
topic Machine Learning
Computers and Society
url https://arxiv.org/abs/2403.19165