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CDSMOTE: class decomposition and synthetic minority class oversampling technique for imbalanced-data classification by Eyad Elyan; Carlos Francisco Moreno-Garcia; Chrisina Jayne is a Computer Science article available to read on EtoBox.

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## Abstract Class-imbalanced datasets are common across several domains such as health, banking, security, and others. The dominance of majority class instances (negative class) often results in biased learning models, and therefore, classifying such datasets requires employing some methods to compact the problem. In this paper, we propose a new hybrid approach aiming at reducing the dominance of the majority class instances using class decomposition and increasing the minority class instances using an oversampling method. Unlike other undersampling methods, which suffer data loss, our method preserves the majority class instances, yet significantly reduces its dominance, resulting in a more balanced dataset and hence improving the results. A large-scale experiment using 60 public datasets was carried out to validate the proposed methods. The results across three standard evaluation metrics show the comparable and superior results with other common and state-of-the-art techniques.

Who reads CDSMOTE: class decomposition and synthetic minority class oversampling technique for imbalanced-data classification?

Author

Eyad Elyan; Carlos Francisco Moreno-Garcia; Chrisina Jayne

Publisher

Springer Science and Business Media LLC

Published

2020

Language

EN

Field

Computer Science (Physical Sciences)