Self-adaptive learning content generation method and system based on knowledge graph

The invention provides a knowledge graph-based adaptive learning content generation method and system. The method comprises the steps of constructing a course knowledge graph; obtaining the cognitive mastery degree of the learner on the knowledge points in the current course; obtaining a cognitive development knowledge cluster of the current stage of the learner based on the cognitive mastery degree, the teaching organization layer and the knowledge presentation layer; generating a cognitive difference sub-graph based on the cognitive development knowledge cluster of the current stage and a dependency relationship among entities in the course knowledge graph; and based on knowledge points included in the cognitive difference sub-graph, retrieving associated resources in a resource aggregation layer in the course knowledge graph, and mapping the associated resources and an aggregation relationship between the resources into the cognitive difference sub-graph to generate adaptive learning content of the current