Title :
Storing RDF as a graph
Author :
Bönström, Valerie ; Hinze, Annika ; Schweppe, Heinz
Author_Institution :
Inst. of Comput. Sci., Freie Univ. Berlin, Germany
Abstract :
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.
Keywords :
information storage; meta data; object-oriented databases; query languages; query processing; semantic Web; RDF graph model; RDF storage system; RQL query language; information resources; meta data; object-oriented database; resource description framework; semantic Web; Books; Computer science; Data models; Information resources; Object oriented databases; Object oriented modeling; Prototypes; Relational databases; Resource description framework; Testing;
Conference_Titel :
Web Congress, 2003. Proceedings. First Latin American
Print_ISBN :
0-7695-2058-8
DOI :
10.1109/LAWEB.2003.1250279
