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Survey on Fairness Notions and Related Tensions (arxiv.org)
1 point by PaulHoule on Jun 22, 2023 | hide | past | pdf | discuss on HN

In plain words: It collects the definitions of fairness for automated decisions—equal approval rates, equal error rates—and maps clashes with privacy and accuracy. Tests on real datasets show improving one fairness measure costs accuracy, and fixes made before, during, or after training manage that trade-off.

Abstract

Automated decision systems are increasingly used to take consequential decisions in problems such as job hiring and loan granting with the hope of replacing subjective human decisions with objective machine learning (ML) algorithms. However, ML-based decision systems are prone to bias, which results in yet unfair decisions. Several notions of fairness have been defined in the literature to capture the different subtleties of this ethical and social concept (e.g., statistical parity, equal opportunity, etc.). Fairness requirements to be satisfied while learning models created several types of tensions among the different notions of fairness and other desirable properties such as privacy and classification accuracy. This paper surveys the commonly used fairness notions and discusses the tensions among them with privacy and accuracy. Different methods to address the fairness-accuracy trade-off (classified into four approaches, namely, pre-processing, in-processing, post-processing, and hybrid) are reviewed. The survey is consolidated with experimental analysis carried out on fairness benchmark datasets to illustrate the relationship between fairness measures and accuracy in real-world scenarios.

Guilherme Alves, Fabien Bernier, Miguel Couceiro, Karima Makhlouf, Catuscia Palamidessi, Sami Zhioua
arXiv:2209.13012 · cs.CY, cs.AI, cs.LG · submitted Sep 16, 2022 · updated Jun 19, 2023
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