Ensemble classification method based on randomized greedy feature selection
A feature selection and classification method technology, applied in the field of bioinformatics and data mining, can solve the problem of poor difference
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[0077] like figure 1As shown, the overall design idea of the present invention is: because the gene expression data has the characteristics of high dimensionality, small sample size and high redundancy, it is necessary to select important genes before classifying them. Firstly, a randomized greedy algorithm is used to select the gene subsets with the weighted local modular function as the heuristic information. Multiple feature subsets are generated through multiple randomized feature selections to form multiple different training sets for the integrated classification model. The randomized feature selection method not only screens out important genes for the classification model, but also expands the search range of the classification model in the feature space. In order to further improve the classification performance of the integrated classification model and improve the efficiency of classification, the method based on neighbor propagation clustering is used to select ...
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