Support Vector Machine in Handling Missing Data: A Cheng Projection Method

CHEN Xinyi, LI Yiliang, ZHANG Lijun, CUI Yanjun, FENG Jun-e

Journal of Systems Science & Complexity ›› 2025

PDF(594 KB)
PDF(594 KB)
Journal of Systems Science & Complexity ›› 2025

Support Vector Machine in Handling Missing Data: A Cheng Projection Method

  • CHEN Xinyi1, LI Yiliang2, ZHANG Lijun3, CUI Yanjun4, FENG Jun-e1
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Abstract

This paper applies the Cheng projection to the support vector machine (SVM) in handling missing data. In the process of handling missing data, each sample with missing values is replaced by its Cheng projection in the original space. Additionally, two classification algorithms for handling linearly separable and nonlinearly separable datasets with missing data are presented. For linearly separable datasets with missing data, Cheng kernel function is introduced, and an SVM classification algorithm that improves the linear kernel function to the Cheng kernel function is proposed. For nonlinearly separable datasets, a generalized Gaussian Radial Basis Function kernel is introduced and an SVM classification algorithm for handling missing data is given. For both algorithms, two comparative experiments are conducted to demonstrate their effectiveness.

Key words

Cheng projection / Kernel function / Missing data / Support vector machine

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CHEN Xinyi , LI Yiliang , ZHANG Lijun , CUI Yanjun , FENG Jun-e. Support Vector Machine in Handling Missing Data: A Cheng Projection Method. Journal of Systems Science & Complexity, 2025

Funding

This work was supported by the National Natural Science Foundation of China under the grant 62273201, the Research Fund for the Taishan Scholar Project of Shandong Province of China under the grant tstp20221103.
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