适应性学习系统中知识点本体的研究与构建

Research and Construction of Knowledge Point Ontology in Adaptive Learning Systems

针对目前适应性学习系统中缺少可重用性、互操作性、共享性的学习资源现状,提出基于知识点本体表示适应性学习系统中的学习资源内容。采用KDD技术对领域学科知识点的内在联系及层次关系的分析和研究,获取领域知识树DKT(Domain Knowledge Tree),基于领域知识树构建了领域知识点本体。研究表明,基于知识点本体的适应性学习系统有利于实现学习资源的语义查询、重用和共享等。

Lack of reusability, interoperabillty and sharing is the present situation of learning resources in adaptive learning systems, this paper proposes that learning resources are expressed based on the knowledge point ontology model. It analyses and researches the inner link and the hierarchical relationships of domain subject knowledge points by KDD technology to obtain a DKT （ Domain Knowledge Tree）, and constructs domain knowledge point ontology. Studies show that the adaptive learning system based on knowledge point ontology is good for realizing the semantic query, reuse and sharing of learning resources.