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• W3040589369 abstract "Data containing human or social attributes may over- or under-represent groups with respect to salient social attributes such as gender or race, which can lead to biases in downstream applications. This paper presents an algorithmic framework that can be used as a data preprocessing method towards mitigating such bias. Unlike prior work, it can efficiently learn distributions over large domains, controllably adjust the representation rates of protected groups and achieve target fairness metrics such as statistical parity, yet remains close to the empirical distribution induced by the given dataset. Our approach leverages the principle of maximum entropy - amongst all distributions satisfying a given set of constraints, we should choose the one closest in KL-divergence to a given prior. While maximum entropy distributions can succinctly encode distributions over large domains, they can be difficult to compute. Our main contribution is an instantiation of this framework for our set of constraints and priors, which encode our bias mitigation goals, and that runs in time polynomial in the dimension of the data. Empirically, we observe that samples from the learned distribution have desired representation rates and statistical rates, and when used for training a classifier incurs only a slight loss in accuracy while maintaining fairness properties." @default.
• W3040589369 created "2020-07-10" @default.
• W3040589369 creator A5054251740 @default.
• W3040589369 creator A5063089732 @default.
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• W3040589369 date "2019-06-05" @default.
• W3040589369 modified "2023-09-27" @default.
• W3040589369 title "Data preprocessing to mitigate bias: A maximum entropy based approach" @default.
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• W3040589369 hasPublicationYear "2019" @default.
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