Andreas Langegger, Wolfram Wöß, Martin Blöchl,
"Sharing Data on the Grid using Ontologies and distributed SPARQL Queries"
: Proceedings of the DEXA Workshop on Web Semantics 2007 (accepted), 9-2007, Andreas Langegger, Martin Blöchl, Wolfram Wöß: Sharing Data on the Grid using Ontologies and distributed SPARQL Queries, Proceedings of the 6th International Workshop on Web Semantics 2007, in conjunction with 18th International Conference on Database and Expert Systems Applications, DEXA 2007, September 3-7, 2007, Regensburg, Germany
Original Titel:
Sharing Data on the Grid using Ontologies and distributed SPARQL Queries
Sprache des Titels:
Englisch
Original Buchtitel:
Proceedings of the DEXA Workshop on Web Semantics 2007 (accepted)
Original Kurzfassung:
The vision of the Semantic Web is to make Web content machine-readable. To describe data, the Resource Description Framework has been extended with a schema-level and description logic (e.g. RDF-S and OWL DL). To successfully retrieve data described by RDF-based ontologies, the query language SPARQL is currently being developed at W3C. However, although SPARQL also provides a client/server protocol, currently queries are targeted to single sites only. For a large-scale data integration, which is the scope of a middleware developed within the Austrian Grid project, it is necessary to execute queries on distributed data nodes. Because of the large amount of research undertaken in the field of relational database systems, it is reasonable to apply relational algebra to SPARQL query processors. In fact, most RDF triple stores are based on relational database systems. In this paper, several concepts are proposed to enable the integration of heterogeneous, distributed data sources with SPARQL.
Sprache der Kurzfassung:
Deutsch
Erscheinungsmonat:
9
Erscheinungsjahr:
2007
Notiz zum Zitat:
Andreas Langegger, Martin Blöchl, Wolfram Wöß: Sharing Data on the Grid using Ontologies and distributed SPARQL Queries, Proceedings of the 6th International Workshop on Web Semantics 2007, in conjunction with 18th International Conference on Database and Expert Systems Applications, DEXA 2007, September 3-7, 2007, Regensburg, Germany
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