Individual fairness, proposed by Dwork et al., is a fairness measure that is supposed to prevent the unfair treatment of individuals on the subgroup level, and to overcome the problem that group fairness measures are susceptible to manipulation, or gerrymandering. The goal of the present paper is to explore the extent to which it is possible to gerrymander individual fairness itself. It will be proved that gerrymandering individual fairness in the context of predicting scores is possible. It will also be argued that individual fairness provides a very weak notion of fairness for some choices of feature space and metric. Finally, it will be discussed how the general idea of individual fairness may be preserved by formulating a notion of fairness that allows us to overcome some of the problems with individual fairness identified here and elsewhere.
翻译:Dwork等人提议的个人公平性是一项公平性措施,旨在预防在分组一级对个人的不公平待遇,并克服群体公平性措施容易被操纵或诱人的问题,本文件的目的是探讨个人公平本身在多大程度上可能实现个人公平,将证明在预测得分方面实现个人公平是可能的,还将论证个人公平性为某些地物空间和衡量标准的选择提供了一个非常薄弱的公平性概念。最后,将讨论如何通过提出一种公平性概念来维护个人公平的一般概念,从而使我们能够克服在这里和其他地方确定的个人公平性方面的一些问题。