Hierarchical semantic matching method oriented to test question knowledge point classification

The invention discloses a hierarchical semantic matching method oriented to test question knowledge point classification. The method comprises the following steps: firstly, constructing test question knowledge point hierarchical structures, mapping test question text semantics and knowledge point hierarchical semantics into a joint space of the test question text semantics and the knowledge point hierarchical semantics, and modeling a matching relationship between the test question text semantics and the different test question knowledge point hierarchical structures by using a semantic matching method; the matching relationship is determined by a hierarchical structure of the test question knowledge points. Specifically, test question text semantics are relatively matched with knowledge point semantics of test question core investigation, and are not matched with irrelevant knowledge point semantics. When the test question knowledge point classification is applied, the hierarchical perception knowledge point