基于Web的课程知识图谱的构建方法研究

Research on construction method of curriculum knowledge graph based on Web

教育信息化的大趋势使得互联网中积累了丰富的教育资源,“信息过载”“知识迷航”给学习者带来了困难,构建课程的知识图谱可以为知识学习提供更好的服务支持。文章对课程知识图谱提出了构建方法,首先基于Web获取数据源,构建课程语料库;其次应用基于TF-IDF与互信息MI权值的方法抽取关键词,利用基于词向量的K-means聚类和基于规则的方法提取分类关系,然后将知识存储于neo4j图数据库。最后利用Protégé工具完成课程知识图谱的构建,为课程知识图谱的构建提供一种思路和方法。

The general trend of education informatization has accumulated rich educational resources on the Internet.“Information Overload”and“Knowledge Trek”have caused difficulties for learners.Constructing a knowledge graph of courses can provide better service support for knowledge learning.This paper proposes a construction method for the curriculum knowledge graph.First,based on the Web to obtain data sources,construct a curriculum corpus;apply methods based on TF-IDF and mutual information MI weights to extract keywords,and use K-means clustering based on word vectors and based on the rule method extracts the classification relationship,then stores the knowledge in the neo4j graph database,and finally uses the Protégétool to complete the construction of the curriculum knowledge graph.This research provides an idea and method for the construction of the curriculum knowledge graph.