Construction And Application Of Secondary Vocational School Course Ontology Based On The Semantic

With the Secondary vocational education developed rapidly and informationization level improved continuously,E-Learning Resources are increasing.The use of e-learning resources facilitates self-learning for students,and the corresponding content can be quickly queried through knowledge point retrieval,but some problems are also found,such as the unreasonable organization of course knowledge points in network resources,and cannot be connected in series like textbook content.There is a lack of convergence between knowledge points.When students self-study in the use of e-learning resources,often feel confused with the relationship between knowledge points and learning sequence.By means of conventional inquiry,only a heap of knowledge points could be enumerated,but students have no way to make it clear that the relationship and sequence among these knowledge points.This paper takes Computer Application Foundation of the secondary vocational course as an example,based on the Semantic Web technology,constructs the ontology of course knowledge points,uses Jena to perform ontology reasoning and query,and finally realizes the autonomous learning system.The major research is as following in this paper:1.Analyzed and studied the architecture of the secondary vocational curriculum,selected the Computer Application Foundation course as an example,collected and studied the main knowledge points of the course and the relationship between them.2.Studied the basic theory of the Semantic Web,especially analyzed its concept and architecture,in-depth studied the ontology related theory,analyzed the concept and classification of ontology,analyzed and compared the current main ontology description languages and query languages.Introduced the application of the ontology.3.Studied ontology construction principles and editing tools,analyzed and compared the main main ontology construction methods,determined the course ontology construction method and process steps,and used the ontology construction tool Protégé to construct the course ontology of Computer Application Foundation.4.Studied semantic reasoning,analyzed and compared several main reasoning mechanisms,reasoning engines and rule definition languages.Studied the Jena framework and related technologies,and in-depth studied of the working principle of the Jena reasoning engine and the construction method of reasoning rules,constructed reasoning rules based on the actual situation of the course ontology,and realized the reasoning of the course ontolog by combining reasoning rules.5.Designed and developed autonomous learning system,used the Jena framework to realize query,analysis,reasoning and storage of course ontology.Provide users with semantic reasoning and semantic retrieval service of course ontology,query course knowledge points,and return knowledge point content and knowledge point relationship,to help the user to clarify the knowledge relationship and learning order.