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| Identifier |
000342555 |
| Title |
Quering and updating RDF/S named graphs |
| Alternative Title |
Επερώτηση και Ενημέρωση RDF/S Ονοματισμένων Γράφων |
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Author
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Πεδιαδίτης, Παναγιώτης
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| Abstract |
The Semantic Web is emerging to add structure and meaning to
conventional Web content Many scientific groups benefit
from data models of increasing complexity
to share their findings on a global scale. The Resource Description
Framework (RDF) and its vocabulary language
RDF-Schema are a popular framework for the
development of such data models as it provides the flexibility that
is crucial in the ever evolving process of scientific research.
A key component to the success of such systems is the ability to
manage the data models through query and update mechanisms. Many
languages have emerged to facilitate such functionality, the most
dominant of these being
In the creation of large dynamic and distributed repositories is
inherent the need to assess the credibility of the information
available. This is more commonly known as the problem of Trust
on the Web which is dealt with by associating information on the
Semantic Web with its origin also called Provenance. One of
the recent extensions of RDF namely Named Graphs provides the means to modularize and
reify RDF/S graphs, a key functionality in enabling the recording
and tracking of provenance on the Semantic Web.
However, named graphs have no support for descriptions utilizing
schema information. The goal of this master is to integrate the
functionality of named graphs to systems that are schema aware.
Distribution of schema information among different sources can
lead to inferred information originating from more than one source.
This mandates the introduction of a new construct, the Graphset.
The proposed construct can describe the origin of a piece of
information whether it is a single named graph or multiple named graphs.
This master thesis also describes the semantics of querying and updating
graphsets. Moreover, the RDF database system found in RDF-Suite as well as RQL
and RUL languages have been extended to support
the new construct of graphsets.
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| Physical description |
xiv, 89 σ. : εικ. ; 30 cm. |
| Language |
English |
| Issue date |
2009-04-02 |
| Collection
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School/Department--School of Sciences and Engineering--Department of Computer Science--Post-graduate theses
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Type of Work--Post-graduate theses
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| Views |
505 |
Quering and updating RDF/S named graphs
