TKDE
2011
13 years 9 months ago
2011
—In the paper “semQA: SPARQL with Idempotent Disjunction” [Shironoshita et al. 2009], the authors study the RDF query language SPARQL. In particular, they claim that some of ...
GVD
2004
14 years 4 months ago
2004
MIWeb realizes a mediator-based integration of heterogeneous metadata sources over the Web. Mediators are well known from database integration. They improve the quality of search ...
ESWS
2008
Springer
14 years 4 months ago
2008
Springer
Integrated access to multiple distributed and autonomous RDF data sources is a key challenge for many semantic web applications. As a reaction to this challenge, SPARQL, the W3C Re...
ESWS
2008
Springer
14 years 4 months ago
2008
Springer
The goal of this paper is to give an overview of the basics of the theory of RDF databases. We provide a formal definition of RDF that includes the features that distinguish this m...
ICLP
2005
Springer
14 years 8 months ago
2005
Springer
The Semantic Web is a rapidly growing research area aiming at the exchange of semantic information over the World Wide Web. The Semantic Web is built on top of RDF, an XML-based ex...
WWW
2002
ACM
15 years 3 months ago
2002
ACM
Real-scale Semantic Web applications, such as Knowledge Portals and E-Marketplaces, require the managementof large volumes of metadata, i.e., information describing the available ...
WWW
2005
ACM
15 years 3 months ago
2005
ACM
Some recent initiatives try to take profit from RDF to make XML documents interoperate at the semantic level. Ontologies are used to establish semantic connections among XML langu...