Large health field label system construction method, and user portrait construction method

The technical scheme of the invention is to provide a large health field label system construction method. The large health field label system construction method is characterized by comprising the following steps: constructing a three-layer architecture consisting of a data element dictionary layer, a label library layer, and a scene label layer. Another technical scheme of the invention is to provide a user portrait construction method, and a large health field label system is constructed based on the method. The large health field relates to different industries of medical treatment, health, e-commerce, finance, and the like. A unified label system and a reasonable user portrait construction method provided by the invention are the basis for realizing business automation and intellectualization and are also the premise for realizing personalized services and precise marketing. For example, for a specific customer, crowd classification is performed on the customer based on historical health records, histori