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Survey on Fairness Notions and Related Tensions

Fabien Bernier
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  • PersonId : 1083723
Karima Makhlouf
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Sami Zhioua
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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. ML-based decision systems, however, are found to be prone to bias which result 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, but also with other desirable properties such as privacy and classification accuracy. \rev{This paper surveys the commonly used fairness notions and discusses the tensions that exist among them and 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 on real-world scenarios.
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Dates and versions

hal-03484009 , version 1 (16-12-2021)
hal-03484009 , version 2 (10-06-2022)


  • HAL Id : hal-03484009 , version 2


Guilherme Alves, Fabien Bernier, Miguel Couceiro, Karima Makhlouf, Catuscia Palamidessi, et al.. Survey on Fairness Notions and Related Tensions. 2022. ⟨hal-03484009v2⟩
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