Unbalanced data set classification method and system
A technology of unbalanced data and classification method, applied in the field of information, can solve the problems of lack of data support, insufficient evaluation and low evaluation accuracy, and achieve the effect of good classification effect, balanced sample data and high reliability.
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[0043] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0044] One of the core concepts of the embodiments of the present invention is to provide a classification method and system for an unbalanced data set, wherein a classification method for an unbalanced data set includes: obtaining bond data samples; preprocessing the bond data samples, Obtain the first data sample; use the random forest algorithm to evaluate the data characteristics of the first data sample, and obtain the important value ranking table of the data characteristics; obtain the bond risk assessment results according to the important value ranking table of the data characteristics; use the SVM algorithm and the bond risk assessment results to compare The first data sample is trained to obtain a classification predicti...
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