Uncertainty and the Social Planner’s Problem: Why Sample Complexity Matters
Uncertainty and the Social Planner’s Problem: Why Sample Complexity Matters
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不确定性和社会规划者的问题:为什么样本复杂性很重要
DOI:
10.1145/3531146.3533243
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发表时间:
2022
期刊:
影响因子:
--
通讯作者:
Cousins, Cyrus
中科院分区:
文献类型:
--
作者:
Cousins, Cyrus
Welfare measures overall utility across a population, whereas malfare measures overall disutility, and the social planner’s problem can be cast either as maximizing the former or minimizing the latter. We show novel bounds on the expectations and tail probabilities of estimators of welfare, malfare, and regret of per-group (dis)utility values, where estimates are made from a finite sample drawn from each group. In particular, we consider estimating these quantities for individual functions (e.g., allocations or classifiers) with standard probabilistic bounds, and optimizing and bounding generalization error over hypothesis classes (i.e., we quantify overfitting) using Rademacher averages. We then study algorithmic fairness through the lens of sample complexity, finding that because marginalized or minority groups are often understudied, and fewer data are therefore available, the social planner is more likely to overfit to these groups, thus even models that seem fair in training can be systematically biased against such groups. We argue that this effect can be mitigated by ensuring sufficient sample sizes for each group, and our sample complexity analysis characterizes these sample sizes. Motivated by these conclusions, we present progressive sampling algorithms to efficiently optimize various fairness objectives.
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DOI:
10.1145/3465456.3467553
发表时间:
2021
期刊:
EC '21: Proceedings of the 22nd ACM Conference on Economics and Computation
影响因子:
--
作者:
Kulkarni, Rucha;Mehta, Ruta;Taki, Setareh
通讯作者:
Taki, Setareh
DOI:
10.1145/3465456.3467617
发表时间:
2021-03
期刊:
Proceedings of the 22nd ACM Conference on Economics and Computation
影响因子:
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通讯作者:
Hoda Heidari;Solon Barocas;J. Kleinberg;K. Levy
DOI:
--
发表时间:
2021
期刊:
International Conference on Machine Learning
影响因子:
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作者:
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通讯作者:
G. Yona
DOI:
--
发表时间:
2020-06
期刊:
ArXiv
影响因子:
--
作者:
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通讯作者:
Preethi Lahoti;Alex Beutel;Jilin Chen;Kang Lee;Flavien Prost;Nithum Thain;Xuezhi Wang;Ed H. Chi
DOI:
--
发表时间:
2020-07
期刊:
Proceedings of machine learning research
影响因子:
--
作者:
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通讯作者:
Natalia Martínez;Martín Bertrán;G. Sapiro