Credit evaluation method based on tax big data analysis

The invention discloses a credit evaluation method based on tax big data analysis, and relates to the technical field of administrative management. Aiming to solve the problem of lagging of the existing tax payment credit evaluation, the method of the technical scheme comprises the steps of extracting and processing the tax data; performing the significant feature extraction on the evaluation subject of the tax data; analyzing the tax data, selecting and verifying the indexes, and scenarizing the extracted significant features; establishing an index system hierarchical structure based on the AHP; constructing a judgment matrix based on the hierarchical structure; calculating a normalized feature vector corresponding to the maximum feature value of the judgment matrix; calculating the weight of each index further, wherein each criterion and each index have a weight coefficient, and the sum of the weight coefficients of each layer is equal to 1; setting an initial value according to the influence degree of each