The invention discloses a cross-
system data integration and value layering method based on customer numbers, and belongs to the field of
digital marketing and financial science and technology. The method comprises the following steps: cleaning and standardizing
source data of an electronic
bank, credit management and customer channel
system by taking a customer number as a unique association key to form a unified customer view; based on the view, non-
linear fitting is carried out on the non-sensitive features by utilizing a
gradient boosting tree model, and a customer value sorting result is generated; screening target clients according to the value sequence, and outputting a desensitization
list only containing
client numbers; and a full-process automatic closed-loop
system covering
data integration, portrait generation, multi-channel touch and effect tracking is constructed, and data interaction and task distribution among the modules are realized through an API (Application Program Interface). According to the method, the cross-system
data integration efficiency and the accuracy and
automation level of customer value layering are improved.