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So where is the Semantic
Web?
-
The Semantic Web provides technologies to make such integration
possible! For example:
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- an abstract model for the relational graphs: RDF (with different “serializations” in XML or
text)
- extract RDF information from XML data: GRDDL
- a query language adapted for the relational graphs:
SPARQL
- characterize the relationships, categorize resources:
RDFS, OWL, SKOS,
Rules
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- applications may choose among the different technologies
- reuse of existing “ontologies” that others have produced
(FOAF in our case)