Unbalanced data classification method based on boundary upsampling
An up-sampling, balanced technology, applied in the field of pattern recognition, which can solve problems such as performance limitations and inability to process data
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[0014] The present invention is subject to boundary upsampling algorithm and figure 1 Inspired by the Bagging algorithm shown, the two are combined to form an ensemble classifier. The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0015] (1) Obtaining test and training data: the present invention selects the yeast database in the KEEL database to mainly characterize the position of the protein in the yeast. A positive class indicates that the protein is located on the cell membrane about to be lysed, and a negative class indicates that the protein is located in the cytoplasm or cytoskeleton. The data set contains a total of 514 samples, including 51 positive samples and 463 negative samples, namely n p =51,n n =463. The database contains a total of 8-dimensional features, which describe the yeast from multiple aspects such as the pH value of the cell fluid and the morphology of the cell membrane. The C4.5 decis...
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