A Membership Probability–Based Undersampling Algorithm for Imbalanced Data

Gilseung Ahn (), You-Jin Park () and Sun Hur ()
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Gilseung Ahn: Hanyang University
You-Jin Park: National Taipei University of Technology
Sun Hur: Hanyang University

Journal of Classification, 2021, vol. 38, issue 1, No 2, 2-15

Abstract: Abstract Classifiers for a highly imbalanced dataset tend to bias in majority classes and, as a result, the minority class samples are usually misclassified as majority class. To overcome this, a proper undersampling technique that removes some majority samples can be an alternative. We propose an efficient and simple undersampling method for imbalanced datasets and show that the proposed method outperforms others with respect to four different performance measures by several illustrative experiments, especially for highly imbalanced datasets.

Keywords: Imbalanced class problem; undersampling; membership probability; information loss (search for similar items in EconPapers)
Date: 2021
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Citations: View citations in EconPapers (2)

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DOI: 10.1007/s00357-019-09359-9

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