463 search results - page 71 / 93 » Querying semantic web data with SPARQL |
GEOINFO
2004
14 years 11 months ago
2004
Abstract With the proliferation of Geographic Information Systems (GIS) and spatial resources over the Internet, there is an increasing demand for robust geospatial information ser...
WAIM
2005
Springer
15 years 3 months ago
2005
Springer
In order to lay a solid foundation for the emerging semantic web, effective and efficient management of large RDF(S) data is in high demand. In this paper we propose an approach t...
DASFAA
2007
IEEE
15 years 3 months ago
2007
IEEE
Recently, several approaches and systems were proposed to store in the same database data and the ontologies describing their meanings. We call these databases, ontology-based data...
SEMWEB
2007
Springer
15 years 3 months ago
2007
Springer
Abstract. An important open question in the semantic Web is the precise relationship between the RDF(S) semantics and the semantics of standard knowledge representation formalisms ...
143
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PPSWR
2005
Springer
15 years 3 months ago
2005
Springer
We present typing rules for the Web query language Xcerpt. The rules provide a descriptive type system: the typing of a program is an ation of its semantics. The rules can also be ...