369 search results - page 4 / 74 » Querying Distributed RDF Data Sources with SPARQL |
OTM
2007
Springer
14 years 1 months ago
2007
Springer
Lightweight ontologies in the form of RDF vocabularies such as SIOC, FOAF, vCard, etc. are increasingly being used and exported by “serious” applications recently. Such vocabul...
ESWS
2008
Springer
13 years 9 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...
SEMWEB
2009
Springer
14 years 2 months ago
2009
Springer
RDF Schema (RDFS) as a lightweight ontology language is gaining popularity and, consequently, tools for scalable RDFS inference and querying are needed. SPARQL has become recently ...
FQAS
2009
Springer
14 years 10 days ago
2009
Springer
This paper concerns the design of a workflow which permits to feed and query a data warehouse opened on the Web, driven by a domain ontology. This data warehouse has been built to...
ESWS
2008
Springer
13 years 9 months ago
2008
Springer
A lot of work has been done in the area of data stream processing. Most of the previous approaches regard only relational or XML based streams but do not cover semantically richer ...