FRAPPE: A Group Fairness Framework for Post-Processing Everything

Fuente: arXiv
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Hauptverfasser: Tifrea, Alexandru, Lahoti, Preethi, Packer, Ben, Halpern, Yoni, Beirami, Ahmad, Prost, Flavien
Format: Preprint
Veröffentlicht: 2023
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author Tifrea, Alexandru
Lahoti, Preethi
Packer, Ben
Halpern, Yoni
Beirami, Ahmad
Prost, Flavien
author_facet Tifrea, Alexandru
Lahoti, Preethi
Packer, Ben
Halpern, Yoni
Beirami, Ahmad
Prost, Flavien
contents Despite achieving promising fairness-error trade-offs, in-processing mitigation techniques for group fairness cannot be employed in numerous practical applications with limited computation resources or no access to the training pipeline of the prediction model. In these situations, post-processing is a viable alternative. However, current methods are tailored to specific problem settings and fairness definitions and hence, are not as broadly applicable as in-processing. In this work, we propose a framework that turns any regularized in-processing method into a post-processing approach. This procedure prescribes a way to obtain post-processing techniques for a much broader range of problem settings than the prior post-processing literature. We show theoretically and through extensive experiments that our framework preserves the good fairness-error trade-offs achieved with in-processing and can improve over the effectiveness of prior post-processing methods. Finally, we demonstrate several advantages of a modular mitigation strategy that disentangles the training of the prediction model from the fairness mitigation, including better performance on tasks with partial group labels.
format Preprint
id arxiv_https___arxiv_org_abs_2312_02592
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle FRAPPE: A Group Fairness Framework for Post-Processing Everything
Tifrea, Alexandru
Lahoti, Preethi
Packer, Ben
Halpern, Yoni
Beirami, Ahmad
Prost, Flavien
Machine Learning
Computers and Society
Despite achieving promising fairness-error trade-offs, in-processing mitigation techniques for group fairness cannot be employed in numerous practical applications with limited computation resources or no access to the training pipeline of the prediction model. In these situations, post-processing is a viable alternative. However, current methods are tailored to specific problem settings and fairness definitions and hence, are not as broadly applicable as in-processing. In this work, we propose a framework that turns any regularized in-processing method into a post-processing approach. This procedure prescribes a way to obtain post-processing techniques for a much broader range of problem settings than the prior post-processing literature. We show theoretically and through extensive experiments that our framework preserves the good fairness-error trade-offs achieved with in-processing and can improve over the effectiveness of prior post-processing methods. Finally, we demonstrate several advantages of a modular mitigation strategy that disentangles the training of the prediction model from the fairness mitigation, including better performance on tasks with partial group labels.
title FRAPPE: A Group Fairness Framework for Post-Processing Everything
topic Machine Learning
Computers and Society
url https://arxiv.org/abs/2312.02592