基于本体的课程知识管理系统设计

Course Knowledge Management System Design Based on Ontology

基于本体的课程知识管理系统模型,采用用户层、表示层、本体层和存储层4层结构。用户请求经表示层转化为Java程序代码后发给本体层,本体层根据用户请求从本体知识库中搜索所需知识并返还给用户,存储层负责知识的存储,整个系统的维护由知识工作者完成。系统通过课程知识点间的关系确定系统本体结构,使用JENA设计知识查询程序,能实现基于语义的课程知识检索。

The course knowledge management system includes user layer, present layer, ontology layer and storage layer. The present layer transfers user＇s request into Java code, then it sends the code to ontology layer. According to user＇s request, the ontology layer searches the knowledge from ＇the ontology, at last, it returns the result to the user. The storage layer takes charge of the ontology＇s storage. The knowledge-worker maintains the whole system. The course knowledge management system ensures the ontology＇s structure which accords to the relationship between the course knowledge. The system uses JENA to design the query program and realizes the semantic search of the course knowledge.