Evaluating AI fairness in credit scoring with the BRIO tool

Greta Coraglia, Francesco A. Genco, Pellegrino Piantadosi, Enrico Bagli, Pietro Giuffrida +2 more
6/5/2024
cs.AI

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Abstract

We present a method for quantitative, in-depth analyses of fairness issues in AI systems with an application to credit scoring. To this aim we use BRIO, a tool for the evaluation of AI systems with respect to social unfairness and, more in general, ethically undesirable behaviours. It features a model-agnostic bias detection module, presented in \cite{DBLP:conf/beware/CoragliaDGGPPQ23}, to which a full-fledged unfairness risk evaluation module is added. As a case study, we focus on the context of credit scoring, analysing the UCI German Credit Dataset \cite{misc_statlog_(german_credit_data)_144}. We apply the BRIO fairness metrics to several, socially sensitive attributes featured in the German Credit Dataset, quantifying fairness across various demographic segments, with the aim of identifying potential sources of bias and discrimination in a credit scoring model. We conclude by combining our results with a revenue analysis.

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Cite this paper

@article{coraglia2024evaluating,
  title  = {Evaluating AI fairness in credit scoring with the BRIO tool},
  author = {Greta Coraglia and Francesco A. Genco and Pellegrino Piantadosi and Enrico Bagli and Pietro Giuffrida and Davide Posillipo and Giuseppe Primiero},
  year   = {2024},
  eprint = {2406.03292},
  archivePrefix = {arXiv},
  url    = {http://arxiv.org/abs/2406.03292v1}
}

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