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- W3005597817 abstract "Fair machine learning is a topical problem. It studies how to mitigate unethical bias against minority people in model prediction. A promising solution is ensemble learning - Nina et al [1] first argue that one can obtain a fair model by bagging a set of standard models. However, they do not present any empirical evidence or discuss effective ensemble strategy for fair learning. In this paper, we propose a new ensemble strategy for fair learning. It adopts the AdaBoost framework, but unlike AdaBoost that upweights mispredicted instances, it upweights unfairly predicted instances which we identify using a variant of Luong's k-NN based situation testing method [2]. Through experiments on two real-world data sets, we show our proposed strategy achieves higher fairness than the bagging strategy discussed by Nina et al and several baseline methods. Our results also suggest standard ensemble strategies may not be sufficient for improving fairness." @default.
- W3005597817 created "2020-02-24" @default.
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- W3005597817 date "2019-11-01" @default.
- W3005597817 modified "2023-10-13" @default.
- W3005597817 title "Improving Prediction Fairness via Model Ensemble" @default.
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- W3005597817 doi "https://doi.org/10.1109/ictai.2019.00273" @default.
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