Characterization data screening method, device and apparatus
A technology for characterizing data and screening methods, applied in the field of data processing, can solve problems such as failure to screen out effective variables
Pending Publication Date: 2020-10-02
CHINA CONSTRUCTION BANK
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[0005] The embodiment of the present application provides a method, device, and equipment for screening characterization data to solve the problem in the prior art that effective variables cannot be efficiently and accurately screened from high-dimensional data
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[0022] The principle and spirit of the present application will be described below with reference to several exemplary embodiments. It should be understood that these embodiments are given only to enable those skilled in the art to better understand and implement the present application, rather than to limit the scope of the present application in any way. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of this disclosure to those skilled in the art.
[0023] Those skilled in the art know that the embodiments of the present application may be realized as a system, device, method or computer program product. Therefore, the disclosure of the present application can be specifically implemented in the form of complete hardware, complete software (including firmware, resident software, microcode, etc.), or a combination of hardware and software.
[0024] Although the processes described below include mul...
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The invention provides a representation data screening method, device and apparatus, and the method comprises: obtaining an initial variable set, wherein the initial variable set comprises values of initial variables corresponding to a plurality of positive sample users and values of initial variables corresponding to a plurality of negative sample users; performing data processing on initial variables in the initial variable set to obtain a derivative variable set; performing univariate analysis on each derivative variable in the derivative variable set to obtain a screened derivative variable set; and screening derivative variables in the screened derivative variable set by using a random forest algorithm to obtain at least one characteristic variable, the characteristic variable being avariable used for representing whether a user is a positive sample user in the derivative variables. In the embodiment of the invention, the variables capable of effectively representing the positivesample users can be efficiently and conveniently screened from the high-dimensional data by utilizing the univariate analysis and the random forest algorithm, so that the accuracy of user evaluationcan be improved.
Description
technical field [0001] The present application relates to the technical field of data processing, in particular to a method, device and equipment for screening characterization data. Background technique [0002] Existing users are an important user resource of the bank. It is particularly important to scientifically manage existing users and provide targeted and personalized services for existing high-quality users under the premise of controlling risks. [0003] In the existing technology, the banking system only provides functional services on the process for the screening of existing high-quality users, and requires business personnel to judge the strong causal relationship between user variables and whether they are high-quality existing users based on their subjective experience, so as to screen out Assess the variables of the user, and the business personnel comprehensively evaluate the user according to the variables obtained through screening to determine whether it...
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IPC IPC(8): G06Q40/02G06K9/62G06N20/00
CPCG06N20/00G06Q40/03G06F18/2113
Inventor 加鸣郑玉函陈芷君袁韵程琬芸
Owner CHINA CONSTRUCTION BANK