将RDF存储为图

Proceedings of the IEEE/LEOS 3rd International Conference on Numerical Simulation of Semiconductor Optoelectronic Devices (IEEE Cat. No.03EX726) Pub Date : 2003-11-10 DOI:10.1109/LAWEB.2003.1250279

Valerie Bönström, A. Hinze, H. Schweppe

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引用次数: 98

摘要

RDF是第一个用详细元数据丰富Web信息资源的W3C标准。RDF数据的语义是使用RDF模式定义的。查询RDF最具表现力的语言是RQL，它支持语义查询。为了支持RQL, RDF存储系统必须将RDF图模型映射到它的存储结构上。已经开发了几种RDF数据存储系统，它们将RDF数据作为三元组存储在关系数据库中。要评估对这些三元组结构的RQL查询，必须从三元组重新构建图模型。我们提出了一种在面向对象数据库中以图的形式存储RDF数据的新方法。我们的方法避免了昂贵的图重建，并有效地直接查询存储结构。在我们的原型实现OO-Store上进行的性能测试显示了我们方法的优点。

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Storing RDF as a graph

RDF is the first W3C standard for enriching information resources of the Web with detailed meta data. The semantics of RDF data is defined using a RDF schema. The most expressive language for querying RDF is RQL, which enables querying of semantics. In order to support RQL, a RDF storage system has to map the RDF graph model onto its storage structure. Several storage systems for RDF data have been developed, which store the RDF data as triples in a relational database. To evaluate an RQL query on those triple structures, the graph model has to be rebuilt from the triples. We present a new approach to store RDF data as a graph in a object-oriented database. Our approach avoids the costly rebuilding of the graph and efficiently queries the storage structure directly. The advantages of our approach have been shown by performance test on our prototype implementation OO-Store.

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Proceedings of the IEEE/LEOS 3rd International Conference on Numerical Simulation of Semiconductor Optoelectronic Devices (IEEE Cat. No.03EX726)

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