Fair Feature Selection: A Causal Perspective

Zhaolong Ling

doi:10.1145/3643890

Fair Feature Selection: A Causal Perspective

2024-06-19

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DOI：10.1145/3643890

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Fair feature selection for classification decision tasks has recently garnered significant attention from researchers. However, existing fair feature selection algorithms fall short of providing a full explanation of the causal relationship between features and sensitive attributes, potentially impacting the accuracy of fair feature identification. To address this issue, we propose a fair causal feature selection algorithm, called FairCFS. Specifically, FairCFS constructs a localized causal graph that identifies the Markov blankets of class and sensitive variables, to block the transmission of sensitive information for selecting fair causal features. Extensive experiments on seven public real-world datasets validate that FairCFS has accuracy comparable to eight state-of-the-art feature selection algorithms while presenting more superior fairness.

Keywords:

Causal fairness

fair feature selection

markov blanket

Fair Feature Selection: A Causal Perspective

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