Abstract:
The Web is one of the most popular and
richest sources of information. The source of data for
a Web page is generally a relational database which
has been recognized as a key factor in generating
huge amounts of data for semantic web applications.
Relational databases and the Semantic Web, in
particular RDF (Resource Description Framework)
as its main data representation format, are two
different approaches for modeling and storing data
permanently. To be accessible data from these
relational databases, we have to map relational data
to RDF. In addition, extracting knowledge,
transforming and understanding data from tables are
the interesting problems in the areas of databases.
The problem of mapping databases to RDF has
received formal attention from the World Wide Web
Consortium (W3C). When mapping relational
databases into RDF, we can choose mappings which
preserve relational constraints and still use the
linking capabilities of RDF. Which approach is the
most appropriate one depends on the kind of
applications for which a resulting RDF graph is
assumed to be used. In this approach, in order to
transform relational data into Semantic Web
representation, we apply formalization rules to
complete our mapping process. We also propose a
rule to handle blank node which is one of the
problems of RDF data model. Our main aim is to be
easily accessible relational data content on Semantic
web. This is the initial approach for transforming
relational data and schema items into Semantic Web
representation.
