60 search results - page 5 / 12 » An Extension of SPARQL for RDFS |
WWW
2007
ACM
14 years 8 months ago
2007
ACM
As the data and ontology layers of the Semantic Web stack have achieved a certain level of maturity in standard recommendations such as RDF and OWL, the current focus lies on two ...
CISIS
2008
IEEE
14 years 1 months ago
2008
IEEE
Solving problems raised by heterogeneous ontologies can be achieved by matching the ontologies and processing the resulting alignments. This is typical of data mediation in which ...
DLOG
2000
13 years 8 months ago
2000
Recently, there has been a wide interest in using ontologies on the Web. As a basis for this, RDF Schema (RDFS) provides means to define vocabulary, structure and constraints for ...
WWW
2007
ACM
14 years 8 months ago
2007
ACM
Object-oriented programming is the current mainstream programming paradigm but existing RDF APIs are mostly tripleoriented. Traditional techniques for bridging a similar gap betwe...
AMW
2011
12 years 11 months ago
2011
Subqueries are a poweful feature which allows to enforce reuse, composition, rewriting and optimization in a query language. In this paper we perform a comprehensive study of the i...