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Authors: Peter Bellmann ; Heinke Hihn ; Daniel A. Braun and Friedhelm Schwenker

Affiliation: Institute of Neural Information Processing, Ulm University, James-Franck-Ring, 89081 Ulm, Germany

Keyword(s): Imbalanced Classification Tasks, Binary Classification, Regression, Support Vector Machines.

Abstract: In many real-world pattern recognition scenarios, such as in medical applications, the corresponding classification tasks can be of an imbalanced nature. In the current study, we focus on binary, imbalanced classification tasks, i.e. binary classification tasks in which one of the two classes is under-represented (minority class) in comparison to the other class (majority class). In the literature, many different approaches have been proposed, such as under- or oversampling, to counter class imbalance. In the current work, we introduce a novel method, which addresses the issues of class imbalance. To this end, we first transfer the binary classification task to an equivalent regression task. Subsequently, we generate a set of negative and positive target labels, such that the corresponding regression task becomes balanced, with respect to the redefined target label set. We evaluate our approach on a number of publicly available data sets in combination with Support Vector Machines. M oreover, we compare our proposed method to one of the most popular oversampling techniques (SMOTE). Based on the detailed discussion of the presented outcomes of our experimental evaluation, we provide promising ideas for future research directions. (More)

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Paper citation in several formats:
Bellmann, P. ; Hihn, H. ; Braun, D. and Schwenker, F. (2021). Binary Classification: Counterbalancing Class Imbalance by Applying Regression Models in Combination with One-sided Label Shifts. In Proceedings of the 13th International Conference on Agents and Artificial Intelligence - Volume 2: ICAART; ISBN 978-989-758-484-8; ISSN 2184-433X, SciTePress, pages 724-731. DOI: 10.5220/0010236307240731

@conference{icaart21,
author={Peter Bellmann and Heinke Hihn and Daniel A. Braun and Friedhelm Schwenker},
title={Binary Classification: Counterbalancing Class Imbalance by Applying Regression Models in Combination with One-sided Label Shifts},
booktitle={Proceedings of the 13th International Conference on Agents and Artificial Intelligence - Volume 2: ICAART},
year={2021},
pages={724-731},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0010236307240731},
isbn={978-989-758-484-8},
issn={2184-433X},
}

TY - CONF

JO - Proceedings of the 13th International Conference on Agents and Artificial Intelligence - Volume 2: ICAART
TI - Binary Classification: Counterbalancing Class Imbalance by Applying Regression Models in Combination with One-sided Label Shifts
SN - 978-989-758-484-8
IS - 2184-433X
AU - Bellmann, P.
AU - Hihn, H.
AU - Braun, D.
AU - Schwenker, F.
PY - 2021
SP - 724
EP - 731
DO - 10.5220/0010236307240731
PB - SciTePress