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Shanxi Provincial Education Department
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Taiyuan University of Technology
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Ed. Office of Journal of TYUT
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SUN Hongbin
ISSN: 1007-9432
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  • Research on Feature Selection Method of Group Lasso Hypergraph Regularization and Depression Classification
    DOI:
     10.16355/j.tyut.1007-9432.2023.05.011
    Received:
     2021-03-22
    Accepted:
     2021-04-24
    abstract:
    【Purposes】 In the research of depression classification and diagnosis, feature selection plays a crucial role. 【Methods】 To address the issues of missing group effect information in existing hypergraph regularized feature selection methods, the group lasso-based hypergraph regularized feature selection approach is proposed. Specifically, the functional magnetic resonance imaging (fMRI) dataset is preprocessed first for depression. Second, on the basis of the preprocessed fMRI data, five brain network models under different scales are constructed and the topological attributes are calculated to extract features. After feature extracting, the group lasso method is introduced to build hypergraph and the hypergraph regularized feature selection method is employed to select features. At last, classification model is constructed by using support vector machine (SVM) and its performance is evaluated. Additionally, the effectiveness of the proposed method is validated on UCI datasets. 【Findings】 The demonstrate that the proposed method outperforms traditional feature selection methods across five different node templates. Moreover, for similar numbers of nodes in different templates, superior classification diagnostic performance is achieved.
    Keywords:
     hypergraph; feature selection; group lasso; sparse; classification; depression;

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