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SesameopenRDF.com
Επιβλέπων καθηγητής: Κεραμόπουλος Ευκλείδης
του φοιτητή: Κορτσιμελίδη Π. Βασιλείου
Πτυχιακή εργασία
Sesame?
Framework για την επεξεργασία RDF
δεδομένων
RDF File formats: RDF/XML, Turtle, N-
Triples, TriG, TriX
SPARQL και seRQL για ερωτήσεις
DBpedia.org
Εξαγωγή δομημένων πληροφοριών απο τη
Wikipedia
Σύνθετα ερωτήματα στη Wikipedia
Παρουσίαση Οντολογιών σε RDF
DBpedia = Semantic Web
Semantic Web
http://goo.gl/kD6O1
Web 3.0
Semantic Web
Όλα τα δεδομένα να είναι μοιρασμένα στο
WEB
Τα δεδομένα θα βρίσκονται σε ένα standard
format
Σχέσεις μεταξύ των δεδομένων (linked
data)
Να μπορούν να χρησιμοποιηθούν απο Η/Υ
(RDF)
Κανόνες
RDF
Η RDF αντιλαμβάνεται τα πάντα ως πόρους
Τρόπος για την περιγραφή διαδικτυακών
πόρων
RDF/XML, N-Triples, Turtle, Notation 3 (N3)
SubjectSubject ObjectObjectPredicatePredicate
RDF Formats
Notation 3(N3):
Turtle:
N-Triples
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix ex: <http://www.example.org/> .
ex:vincent_donofrio ex:starred_in ex:law_and_order_ci .
ex:law_and_order_ci rdf:type ex:tv_show .
ex:the_thirteenth_floor ex:similar_plot_as ex:the_matrix .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>.
@prefix contact: <http://www.w3.org/2000/10/swap/pim/contact#>.
<http://www.w3.org/People/EM/contact#me>
rdf:type contact:Person;
contact:fullName "Eric Miller";
contact:mailbox <mailto:em@w3.org>;
contact:personalTitle "Dr.".
<http://www.w3.org/2001/sw/RDFCore/ntriples/>
<http://purl.org/dc/elements/1.1/creator> "Dave Beckett" .
<http://www.w3.org/2001/sw/RDFCore/ntriples/>
<http://purl.org/dc/elements/1.1/creator> "Art Barstow" .
<http://www.w3.org/2001/sw/RDFCore/ntriples/>
<http://purl.org/dc/elements/1.1/publisher> <
RDF / XML
http://goo.gl/wHQgB
<?xml version="1.0" encoding="iso-8859-1"?>
<rdf:RDF
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
xmlns:dbpprop="http://dbpedia.org/property/"
xmlns:dbpedia-owl="http://dbpedia.org/ontology/">
<rdf:Description rdf:about="University of Sri Jayewardenepura">
<dbpprop:established>1989</dbpprop:established>
<dbpprop:chancellor>Prof. Ven. Bellanvila Vimalarathana Thero
</dbpprop:chancellor>
</rdf:Description>
<dbpprop:city rdf:resource="http://dbpedia.org/page/Atlanta"/>
University Ontology
http://live.dbpedia.org/ontology/University
http://www.w3.org/RDF/Validator/
http://www.rdfabout.com/demo/validator/
Sesame Installation
http://www.openrdf.org/download_sesame
2.jsp
http://tomcat.apache.org/download-70.cgi
Μετακινούμε τα αρχεία του Sesame στο
φάκελο “webapps” του Apache
Εκκίνηση του Apache (/bin/startup.sh)
http://localhost:8080/openrdf-workbench/
Sesame Welcome
Screen
Add RDF into
Repository
Ερωτήσεις

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