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Completed sample correlations and feature dependency-based unsupervised feature selection
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DOI：10.1007/s11042-022-13903-y.png)
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摘要
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Sample correlations and feature relations are two pieces of information that are needed to be considered in the unsupervised feature selection, as labels are missing to guide model construction. Thus, we design a novel unsupervised feature selection scheme, in this paper, via considering the completed sample correlations and feature dependencies in a unified framework. Specifically, self-representation dependencies and graph construction are conducted to preserve and select the important neighbors for each sample in a comprehensive way. Besides, mutual information and sparse learning are designed to consider the correlations between features and to remove the informative features, respectively. Moreover, various constraints are constructed to automatically obtain the number of important neighbors and to conduct graph partition for the clustering task. Finally, we test the proposed method and verify the effectiveness and the robustness on eight data sets, comparing with nine state-of-the-art approaches with regard to three evaluation metrics for the clustering task.
Keyword:
Unsupervised learning
Sample correlation
Unsupervised feature selection
Graph learning
Self-representation
Mutual information
Sparse learning
期刊
IF:
3
论文数:
2.0W
被引数:
3.2W
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