TY - CHAP AB - Abstract We propose an oversampling technique to increase the true positive rate (sensitivity) in classifying imbalanced datasets (i.e., those with a value for the target variable that occurs with a small frequency) and hence boost the overall performance measurements such as balanced accuracy, G-mean and area under the receiver operating characteristic (ROC) curve, AUC. This oversampling method is based on the idea of applying the Synthetic Minority Oversampling Technique (SMOTE) on only a selective portion of the dataset instead of the entire dataset. We demonstrate the effectiveness of our oversampling method with four real and simulated datasets generated from three models. VL - 12 SN - 978-1-78743-069-3, 978-1-78743-070-9/1477-4070 DO - 10.1108/S1477-407020170000012004 UR - https://doi.org/10.1108/S1477-407020170000012004 AU - Nguyen Son AU - Quinn John AU - Olinsky Alan PY - 2017 Y1 - 2017/01/01 TI - An Oversampling Technique for Classifying Imbalanced Datasets T2 - Advances in Business and Management Forecasting T3 - Advances in Business and Management Forecasting PB - Emerald Publishing Limited SP - 63 EP - 80 Y2 - 2024/04/25 ER -