Small sample credit assessment method and system based on machine learning, and medium
A credit evaluation and machine learning technology, applied in the field of machine learning, can solve problems such as difficulty in data acquisition, small amount of data, poor credit model prediction effect, etc., to reduce credit risk, improve efficiency and income, and avoid data leakage risk Effect
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[0027] The overall implementation steps of the embodiment of the present invention are mainly divided into five steps:
[0028] The first step: obtain data, that is, obtain the original data set T required for modeling, including the feature variable P1 and the target variable. Characteristic variables refer to the available data about small and micro enterprises, such as the basic information of the enterprise, financial information and information about the legal person of the enterprise, as well as characteristic dimensions such as macroeconomic information. The specific variables that can be selected are shown in Table 1 below (Table 1 Only some variables are listed, and other publicly available data in the industry can also be included in the characteristic variables); the target variable refers to the historical overdue situation of the enterprise, that is, the historical overdue situation of the enterprise in the credit company or bank, usually expressed as 0 / 1, The def...
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