Traditional RDF ( Resource Description Framework) storage systems use relational database system to manage RDF data using a triple table, but due to the sparse characteristic of RDF data, those storage systems did not show efficient storage usage and high query performance. 传统的对RDF(ResourceDescriptionFramework)数据存储的方法主要采用基于关系数据库方式的三元组表,但由于RDF数据的稀疏性特点,使得这种存储方式的存储空间利用率和查询效率都不高。