Partial Identification Approach to Counterfactual Fairness Assessment

Fuente: arXiv
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Main Authors: Rho, Saeyoung, Zhang, Junzhe, Bareinboim, Elias
Format: Preprint
Published: 2025
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_version_ 1866911187330924544
author Rho, Saeyoung
Zhang, Junzhe
Bareinboim, Elias
author_facet Rho, Saeyoung
Zhang, Junzhe
Bareinboim, Elias
contents The wide adoption of AI decision-making systems in critical domains such as criminal justice, loan approval, and hiring processes has heightened concerns about algorithmic fairness. As we often only have access to the output of algorithms without insights into their internal mechanisms, it was natural to examine how decisions would alter when auxiliary sensitive attributes (such as race) change. This led the research community to come up with counterfactual fairness measures, but how to evaluate the measure from available data remains a challenging task. In many practical applications, the target counterfactual measure is not identifiable, i.e., it cannot be uniquely determined from the combination of quantitative data and qualitative knowledge. This paper addresses this challenge using partial identification, which derives informative bounds over counterfactual fairness measures from observational data. We introduce a Bayesian approach to bound unknown counterfactual fairness measures with high confidence. We demonstrate our algorithm on the COMPAS dataset, examining fairness in recidivism risk scores with respect to race, age, and sex. Our results reveal a positive (spurious) effect on the COMPAS score when changing race to African-American (from all others) and a negative (direct causal) effect when transitioning from young to old age.
format Preprint
id arxiv_https___arxiv_org_abs_2510_00163
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Partial Identification Approach to Counterfactual Fairness Assessment
Rho, Saeyoung
Zhang, Junzhe
Bareinboim, Elias
Machine Learning
Artificial Intelligence
Computers and Society
Methodology
The wide adoption of AI decision-making systems in critical domains such as criminal justice, loan approval, and hiring processes has heightened concerns about algorithmic fairness. As we often only have access to the output of algorithms without insights into their internal mechanisms, it was natural to examine how decisions would alter when auxiliary sensitive attributes (such as race) change. This led the research community to come up with counterfactual fairness measures, but how to evaluate the measure from available data remains a challenging task. In many practical applications, the target counterfactual measure is not identifiable, i.e., it cannot be uniquely determined from the combination of quantitative data and qualitative knowledge. This paper addresses this challenge using partial identification, which derives informative bounds over counterfactual fairness measures from observational data. We introduce a Bayesian approach to bound unknown counterfactual fairness measures with high confidence. We demonstrate our algorithm on the COMPAS dataset, examining fairness in recidivism risk scores with respect to race, age, and sex. Our results reveal a positive (spurious) effect on the COMPAS score when changing race to African-American (from all others) and a negative (direct causal) effect when transitioning from young to old age.
title Partial Identification Approach to Counterfactual Fairness Assessment
topic Machine Learning
Artificial Intelligence
Computers and Society
Methodology
url https://arxiv.org/abs/2510.00163