Semantic Web is oriented to the semantic
information retrieval, and on a machine-machine cooperation aimed to select
the right information based on the concept behind the keyword. The goal of the
Semantic Web is to make explicit the knowledge and to integrate different sources
of knowledge with the goal to extract knowledge from knowledge.
Semantic.Web.Languages
Behind the idea of Semantic Web, the World Wide Consortium (W3C) works around
languages for knowledge representation. One of the main goals of the ontology is
the interoperability of both syntactic and semantic. Semantic interoperability means
that ontology must be machine readable, that is, it must be interpreted by a machine
in a well-defined format. Syntactic interoperability is the ability to provide support
to a reason that is to learn from the data. Languages born to support ontology are
different: The first ontology language is resource description language (RDF) (W3C,
2004c) and RDF schema (RDFS) (W3C, 2004b).
RDF has a model similar to the entity-relationship model which allows us to give
interoperability through applications that interact with each other in order to exchange
information on the Web in a machine-readable format.
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