Poster
in
Workshop: Algorithmic Fairness through the lens of Causality and Robustness
Measure Twice, Cut Once: Quantifying Bias and Fairness in Deep Networks
Ziliang Zong · Cody Blakeney · Gentry Atkinson · Nathaniel Huish · · Vangelis Metsis
Abstract:
AI systems come with serious concerns of bias and fairness. Algorithmic bias is more abstract and unintuitive than traditional forms of discrimination and can be more difficult to detect and mitigate. A clear gap exists in the current literature on evaluating the relative bias in the performance of multi-class classifiers. In this work, we propose two simple yet effective metrics, Combined Error Variance (CEV) and Symmetric Distance Error (SDE), to quantitatively evaluate the class-wise bias of two models in comparison to one another. We evaluate the performance of these new metrics by demonstrating practical use cases with pre-trained models and show that they can be used to measure fairness as well as bias.