分析了语义Web的逻辑基础．指出了语义Web语言RDF和RDF Schema的语义是基于非经典的模型论 语义-Analysis of the logical basis for the Semantic Web. Pointed out the Semantic Web languages ​ ​ RDF and RDF Schema semantics is based on a model-theoretic semantics of non-classical

语义网数据的大量增加使得RDF数据查询成为一个重要研究主题。关键词查询方式不需要掌握数据模式或查询语言，更适合普通用户使用。文中提出一种RDF数据关键词查询方法KREAG(Keyword query over RDF data based on Entity-triple Association Graph)-A substantial increase in the Semantic Web RDF data query such data become an important resear