大数据时代的在线教育面临着资源量巨大而难以组织、异构资源之间没有统一描述而难以跨平台获取、资源之间缺乏关系而难以关联检索等问题.如何构建适应大数据特征的组织框架以实现基于海量在线教育资源的模式创新,是推动大数据时代互联网教育发展的关键所在.该文提出了一种在线教育资源百科型大数据组织框架,其特点在于:首先,通过轻量级的资源链接方式,实现教育资源大数据在同一平台内的汇集;其次,通过基于知识图谱方式,实现教育资源的统一语义描述和关系刻画,消除资源歧义性并实现资源间语义级别的知识点关联;最后,通过百科型词条以及分级目录方式,实现资源的优化查询与检索.%In the era of big data, online education faces several key challenges, i.e., difficult organizing for the large amount of online education resources, obtaining resources through cross-platform environment without unified formal descriptions of heterogeneous resources, and hard retrieval without corrected relationships among resources. Therefore, how to construct an organizing framework for online education resources with adapting to the characteristics of bigdata environment and realize an innovation application pattern of online education resources is the significant problem for online education. This paper presents a novel bigdata organizing framework for online education resource through an encyclopedic based framework, which comprises following features: first, online education resources are clustered and organized through their lightweight resource URL links in a bigdata compatible database; secondly, knowledge graph is introduced to achieve unified semantic descriptions of education resources, which can establish the semantic-level links among online education resources and also eliminate the ambiguity by the knowledge-based description through knowledge graph;finally, all online education resources are organized through Encyclopedia based entry and hierarchical directory approach to optimize the resource retrieval for users.
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