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• W2971347769 abstract "Abstract Feature selection and rebalancing can be seen as two preprocessing ways in class‐imbalanced learning. Recently, there have been many research achievements and applications on LASSO‐type feature selection, whereas most of them are not directly designed for addressing class‐imbalanced data. In this study, we proposed a LASSO‐based stable feature selection algorithm for class‐imbalanced data analysis, and false‐positive selection (FPS) under balanced and imbalanced situations was calculated via selection frequency of each predictor in doing stable selection. The results on simulation studies and real data examples show that class imbalance contributes to avoid overselection caused by LASSO when the data are highly correlated and a lower FPS can be obtained with class‐imbalanced data than balanced one in most of cases in the same settings. A statistical explanation was given for this phenomenon. In addition, it does not need to rebalance the class‐imbalanced data for performing such LASSO‐based feature selection with a stable strategy, and to some degree, intentionally disequilibrating the balanced data could be an alternative strategy to weaken overselection and to perform biomarker identification for finding a few of most important biomarkers." @default.
• W2971347769 created "2019-09-05" @default.
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• W2971347769 date "2019-08-27" @default.
• W2971347769 modified "2023-10-16" @default.
• W2971347769 title "LASSO‐based false‐positive selection for class‐imbalanced data in metabolomics" @default.
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• W2971347769 doi "https://doi.org/10.1002/cem.3177" @default.
• W2971347769 hasPublicationYear "2019" @default.
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