A credit scoring card development method based on machine learning
A credit scoring and machine learning technology, applied in instruments, data processing applications, finance, etc., can solve problems such as audit difficulties and low labor efficiency
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[0093] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0094] Reference figure 1 , A score card development method based on machine learning, which can solve the problem of difficult selection of high-dimensional data features while solving the low efficiency of manual review. The present invention can be applied to the development of Internet financial score cards. Such as figure 1 In the scene shown. The optimization method designed for the problem mainly includes the following steps:
[0095] 1) Definition of target variable
[0096] According to vintage analysis, observe the trend of average overdue in each month and determine the time span of the performance window. Define a user whose overdue days are less than 3 days during the performance period as a "good user", define a user whose overdue days are more than 30 days as a "bad user", and define a user whose overdue days are more than 3 days and less than 30 ...
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