基于本体的教学知识库研究与应用

知识库是智能教学系统的基础。由于教学知识库的描述标准不统一,知识表示方法也不同,所以导致教学知识难以共享和互操作。将本体引入教学领域知识库建模过程,建立概念共享模型,提供概念语义空间,不仅可以解决智能教学系统中的知识共享和互操作问题,而且易于实现基于本体的语义检索系统,从而大大提高系统的查全率和查准率。

Research and Application of Teaching KB Based on Ontology

The knowledge representation of knowledge base is one of the first important problems that must be settled in intellectualized system. Because the traditional intelligence teaching system resources lacks the uniform knowledge representation framework, all the learning resources are difficult to operate and share each other in various teaching system. By introducing ontology to the modeling process of teaching KB,can erect conception of share mode and provide conception of semantic space. This not only solves the problems of sharing of knowledge and mutual operation of ITS, but also realizes semantic search based on ontologies easily. This can raise the precision and recall of information search system.