Data mining method and device, computer equipment and storage medium

The invention belongs to the field of artificial intelligence, and relates to a data mining method, which comprises the steps of extracting new features according to update data of a sample set; inputting the original modeling feature into a target model to obtain a first model output, dividing the sample set according to the first model output to obtain a plurality of sample partitions, and calculating a first evaluation parameter value of each sample partition; inputting the first model output and the new feature into a preset intermediate model to obtain a second model output, and calculating a second evaluation parameter value of each sample partition; and calculating evaluation parameter values of the new features according to the first evaluation parameter values and the second evaluation parameter values, and determining whether to take the new features as in-mold features of the target model or not according to the evaluation parameter values. The invention further provides a data mining device, compu