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Linked Data at the National Széchényi Library

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National Széchényi Library (National Library of Hungary) published its entire catalog and the thesaurus and the name authority file into the semantic web.

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Linked Data at the National Széchényi Library

  1. 1. Linked Data at the NationalLinked Data at the National Széchényi LibrarySzéchényi Library ÁdámÁdám HorváthHorváth NSZLNSZL ELAG 2010 HELSINKIELAG 2010 HELSINKI Lightning TalksLightning Talks
  2. 2. 2 Linked Data at the National Széchényi What is on the semantic web?What is on the semantic web? Entire online catalogue and digital library inEntire online catalogue and digital library in RDFDCRDFDC Name authority in FOAFName authority in FOAF Subject term thesaurus in SKOSSubject term thesaurus in SKOS Geographical name thesaurus in SKOSGeographical name thesaurus in SKOS
  3. 3. 3 Linked Data at the National Széchényi Serving our information as LinkedServing our information as Linked DataData  RDF databaseRDF database – JenaJena  SPARQL endpointSPARQL endpoint – JoJosekiseki http://setaria.oszk.hu/joseki/query.htmlhttp://setaria.oszk.hu/joseki/query.html SSample queryample query PREFIX skos: <http://www.w3.org/2004/02/skos/core#>PREFIX skos: <http://www.w3.org/2004/02/skos/core#> SELECT ?s ?p ?oSELECT ?s ?p ?o WHERE {WHERE { ?s ?p ?o .?s ?p ?o . ?s skos:prefLabel "kutya"@hu .?s skos:prefLabel "kutya"@hu . }}
  4. 4. 4 Linked Data at the National Széchényi Providing useful informationProviding useful information We always provide a human readableWe always provide a human readable version to our RDF dataversion to our RDF data
  5. 5. 5 Linked Data at the National Széchényi DemonstrationDemonstration Retrieving name authority dataRetrieving name authority data ((Text/html isText/html is requestedrequested)) – The resource identifierThe resource identifier http://http://nektar.oszk.hunektar.oszk.hu/resource/auth//resource/auth/3358933589 – An HTML page for human reading is given backAn HTML page for human reading is given back http://nektar.oszk.hu/auth/http://nektar.oszk.hu/auth/3358933589
  6. 6. 6 Linked Data at the National Széchényi The working modelThe working model : authority: authority Thesaurus terms and geographical namesThesaurus terms and geographical names (SKOS)(SKOS) Names (FOAF)Names (FOAF)
  7. 7. 7 Linked Data at the National Széchényi DemonstrationDemonstration Retrieving name authority dataRetrieving name authority data ((application/rdf+xml is acceptedapplication/rdf+xml is accepted)) – The resource identifierThe resource identifier http://http://nektar.oszk.hunektar.oszk.hu/resource/auth//resource/auth/3358933589 – The RDF XML document is given backThe RDF XML document is given back http://nektar.oszk.hu/http://nektar.oszk.hu/datadata/auth//auth/3358933589
  8. 8. 8 Linked Data at the National Széchényi The working modelThe working model : authority: authority Thesaurus terms and geographical namesThesaurus terms and geographical names (SKOS)(SKOS) Names (FOAF)Names (FOAF)
  9. 9. 9 Linked Data at the National Széchényi Discovering our linked data on theDiscovering our linked data on the webweb HTML link auto-discoveryHTML link auto-discovery – In the header of our OPAC full view pagesIn the header of our OPAC full view pages – <link rel="meta"<link rel="meta" type="application/rdf+xml"type="application/rdf+xml" title="RDF Version"title="RDF Version" href="http://nektar.oszk.hu/data/manifestation/2645471" />href="http://nektar.oszk.hu/data/manifestation/2645471" />  SitemapSitemap – Robots.txtRobots.txt
  10. 10. 10 Linked Data at the National Discovering our linked data on theDiscovering our linked data on the webweb Links to NSZL resourcesLinks to NSZL resources – Link from Dublin Core to name authorityLink from Dublin Core to name authority <dc:creator>Jókai Mór (1825-1904)</dc:creator><dc:creator>Jókai Mór (1825-1904)</dc:creator> <dc:creator<dc:creator rdf:resource="http://nektar.oszk.hu/resource/auth/33589"/>rdf:resource="http://nektar.oszk.hu/resource/auth/33589"/>
  11. 11. 11 Linked Data at the National Discovering our linked data on theDiscovering our linked data on the webweb Links to external resourcesLinks to external resources – Link from the authority record to DBpediaLink from the authority record to DBpedia
  12. 12. 12 Linked Data at the National PlansPlans Submitting our name authority to VIAFSubmitting our name authority to VIAF Linking VIAFLinking VIAF records torecords to our FOAFour FOAF recordsrecords Linking our FOAF records to VIAFLinking our FOAF records to VIAF recordsrecords Enriching RDFDC with BIBO statementsEnriching RDFDC with BIBO statements Using linked data for frbrizationUsing linked data for frbrization
  13. 13. 13 Linked Data at the National AcAcknowlknowleeddggmentment We followed the LIBRIS solution as much asWe followed the LIBRIS solution as much as possible to make the future cooperation aspossible to make the future cooperation as easy as possibleeasy as possible We learned how to publish linked data in anWe learned how to publish linked data in an ELAG conferenceELAG conference
  14. 14. aadam@oszk.hudam@oszk.hu Thank youThank you for your attentionfor your attention

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