Algorithm Research & Explore
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App. Res. of Comp. Printed Article
Vol. 38, 2021 No. 6
1673-1677

Research on neighborhood adaptive SMOTE algorithm

Wang Fanga
Wu Wentonga
Zhang Lilia
Ma Ruia
Xu Wenxinga,b
a. College of Information Engineering, b. Academy of Artificial Intelligence, Beijing Institute of Petrochemical Technology, Beijing 102617, China
DOI: 10.19734/j.issn.1001-3695.2020.08.0228

Abstract

To solve the problem of traditional oversampling algorithms based on neighbor values such as SMOTE(synthetic minority over-sampling technique) that the nearest neighbor parameters cannot be adjusted in time according to the distribution of minority samples when dealing with imbalanced data, this paper proposed a neighborhood adaptive SMOTE algorithm AdaN_SMOTE. In order to keep the original distribution of the minority class in the synthetic data, this algorithm determined the neighbor value of each minority class data by tracking the precision decline point, and adjusted the size of the neighbor value in time according to noise, small disjunctions or complex shapes. Thus, the synthetic data retained the original distribution of the minority classes, which made the algorithm classification performance better. Experimental comparison and verification on the KEEL datasets show that the classification performance of AdaN_SMOTE is better than other oversampling methods based on nearest neighbor values, especially in noisy datasets.

Foundation Support

北京市属高校青年拔尖人才培育计划资助项目(CIT&TCD201704048)
北京市教委—市自然基金资助项目(KZ202110017025)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2020.08.0228
Publish at: Application Research of Computers Printed Article, Vol. 38, 2021 No. 6
Section: Algorithm Research & Explore
Pages: 1673-1677
Serial Number: 1001-3695(2021)06-013-1673-05

Publish History

[2021-06-05] Printed Article

Cite This Article

王芳, 吴文通, 张立立, 等. 邻域自适应SMOTE算法研究 [J]. 计算机应用研究, 2021, 38 (6): 1673-1677. (Wang Fang, Wu Wentong, Zhang Lili, et al. Research on neighborhood adaptive SMOTE algorithm [J]. Application Research of Computers, 2021, 38 (6): 1673-1677. )

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Application Research of Computers, founded in 1984, is an academic journal of computing technology sponsored by Sichuan Institute of Computer Sciences under the Science and Technology Department of Sichuan Province.

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