arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2011.00379cs.LGcs.AIcs.CY
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具有组相关标签噪声的公平分类

Fair Classification with Group-Dependent Label Noise

UC Santa Cruz(加州大学圣克鲁兹分校)

Jialu Wang, Yang Liu, Caleb Levy

摘要:

这项工作探讨如何训练公平分类器的设置中,训练标签被破坏与随机噪声,腐败的出错率取决于标签类和受保护的子组的成员函数。异构标签噪声模型生成注释时对特定群体的系统偏见。我们首先提出的分析结果表明,天真地施加奇偶性约束的人口差距的措施,而不考虑异质性和组依赖的出错率,可以降低准确性和公平性的分类。我们的实验表明,这些问题在实践中也会出现。我们通过执行经验风险最小化与仔细定义的代理损失函数和代理约束,帮助避免引入的陷阱异质标签噪声来解决这些问题。我们提供了理论和经验的理由,我们的方法的有效性。我们认为我们的研究结果是一个重要的例子,说明在没有适当照顾的情况下,对有偏见的数据集施加公平性至少会带来与其带来的好处一样多的伤害。

英文摘要:

This work examines how to train fair classifiers in settings where training labels are corrupted with random noise, and where the error rates of corruption depend both on the label class and on the membership function for a protected subgroup. Heterogeneous label noise models systematic biases towards particular groups when generating annotations. We begin by presenting analytical results which show that naively imposing parity constraints on demographic disparity measures, without accounting for heterogeneous and group-dependent error rates, can decrease both the accuracy and the fairness of the resulting classifier. Our experiments demonstrate these issues arise in practice as well. We address these problems by performing empirical risk minimization with carefully defined surrogate loss functions and surrogate constraints that help avoid the pitfalls introduced by heterogeneous label noise. We provide both theoretical and empirical justifications for the efficacy of our methods. We view our results as an important example of how imposing fairness on biased data sets without proper care can do at least as much harm as it does good.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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