Research Article

An Improved Version of Edited Nearest Neighbor Undersampling Method Based on the kNN Approach

Volume: 27 Number: 81 September 29, 2025
TR EN

An Improved Version of Edited Nearest Neighbor Undersampling Method Based on the kNN Approach

Abstract

In the field of machine learning, handling imbalanced datasets remains a critical challenge, often addressed through various sampling techniques. Among these techniques, the Edited Nearest Neighbor (ENN) undersampling method is widely recognized for its ability to enhance classifier performance by reducing class imbalance. However, the traditional ENN method has limitations, such as the removal of potentially informative instances and suboptimal performance in complex datasets. This paper presents an improved version of the ENN undersampling method, leveraging the k-Nearest Neighbors (kNN) approach to refine the selection process for instance removal. The proposed method improves upon the traditional ENN by incorporating a more sophisticated neighbor evaluation criterion based on the k-NN algorithm, which better preserves informative instances while effectively reducing noise. Through extensive experiments on multiple benchmark datasets, we demonstrate that our improved ENN method achieves superior performance in terms of classification accuracy, F1-score, and AUC, compared to the traditional ENN and other state-of-the-art undersampling techniques. The results indicate that the improved ENN method not only mitigates the class imbalance problem more effectively but also maintains a higher level of data integrity, thereby enhancingthe robustness and reliability of machine learning models. This advancement provides a valuable tool for practitioners dealing with imbalanced datasets, contributing to the development of more accurate and efficient predictive models.

Keywords

References

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Details

Primary Language

English

Subjects

Performance Evaluation

Journal Section

Research Article

Early Pub Date

September 25, 2025

Publication Date

September 29, 2025

Submission Date

October 2, 2024

Acceptance Date

November 16, 2024

Published in Issue

Year 2025 Volume: 27 Number: 81

APA
Doğan, A. (2025). An Improved Version of Edited Nearest Neighbor Undersampling Method Based on the kNN Approach. Dokuz Eylül Üniversitesi Mühendislik Fakültesi Fen Ve Mühendislik Dergisi, 27(81), 376-381. https://doi.org/10.21205/deufmd.2025278105
AMA
1.Doğan A. An Improved Version of Edited Nearest Neighbor Undersampling Method Based on the kNN Approach. DEUFMD. 2025;27(81):376-381. doi:10.21205/deufmd.2025278105
Chicago
Doğan, Alican. 2025. “An Improved Version of Edited Nearest Neighbor Undersampling Method Based on the KNN Approach”. Dokuz Eylül Üniversitesi Mühendislik Fakültesi Fen Ve Mühendislik Dergisi 27 (81): 376-81. https://doi.org/10.21205/deufmd.2025278105.
EndNote
Doğan A (September 1, 2025) An Improved Version of Edited Nearest Neighbor Undersampling Method Based on the kNN Approach. Dokuz Eylül Üniversitesi Mühendislik Fakültesi Fen ve Mühendislik Dergisi 27 81 376–381.
IEEE
[1]A. Doğan, “An Improved Version of Edited Nearest Neighbor Undersampling Method Based on the kNN Approach”, DEUFMD, vol. 27, no. 81, pp. 376–381, Sept. 2025, doi: 10.21205/deufmd.2025278105.
ISNAD
Doğan, Alican. “An Improved Version of Edited Nearest Neighbor Undersampling Method Based on the KNN Approach”. Dokuz Eylül Üniversitesi Mühendislik Fakültesi Fen ve Mühendislik Dergisi 27/81 (September 1, 2025): 376-381. https://doi.org/10.21205/deufmd.2025278105.
JAMA
1.Doğan A. An Improved Version of Edited Nearest Neighbor Undersampling Method Based on the kNN Approach. DEUFMD. 2025;27:376–381.
MLA
Doğan, Alican. “An Improved Version of Edited Nearest Neighbor Undersampling Method Based on the KNN Approach”. Dokuz Eylül Üniversitesi Mühendislik Fakültesi Fen Ve Mühendislik Dergisi, vol. 27, no. 81, Sept. 2025, pp. 376-81, doi:10.21205/deufmd.2025278105.
Vancouver
1.Alican Doğan. An Improved Version of Edited Nearest Neighbor Undersampling Method Based on the kNN Approach. DEUFMD. 2025 Sep. 1;27(81):376-81. doi:10.21205/deufmd.2025278105

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