Diese Präsentation wurde erfolgreich gemeldet.
Wir verwenden Ihre LinkedIn Profilangaben und Informationen zu Ihren Aktivitäten, um Anzeigen zu personalisieren und Ihnen relevantere Inhalte anzuzeigen. Sie können Ihre Anzeigeneinstellungen jederzeit ändern.
Linked Data at the NationalLinked Data at the National
Széchényi Library : road to theSzéchényi Library : road to the
publ...
2 Linked Data at the National Széchényi
ContentsContents
Why I am hereWhy I am here
Background information on NSZLBackgr...
3 Linked Data at the National Széchényi
The newsThe news
The National Széchényi Library (NSZL) hasThe National Széchényi ...
4 Linked Data at the National Széchényi
The newsThe news
The used vocabularies areThe used vocabularies are
– RDFDC for b...
5 Linked Data at the National Széchényi
The newsThe news
 NSZL uses CoolURIsNSZL uses CoolURIs
 Every resource has both ...
6 Linked Data at the National Széchényi
Information infrastructure of NSZLInformation infrastructure of NSZL
Integrated l...
7 Linked Data at the National Széchényi
Information infrastructure of NSZLInformation infrastructure of NSZL
OPACOPAC
– L...
8 Linked Data at the National Széchényi
Information infrastructure of NSZLInformation infrastructure of NSZL
Thesaurus ha...
9 Linked Data at the National Széchényi
Information infrastructure of NSZLInformation infrastructure of NSZL
MARC is HUNM...
10 Linked Data at the National
Information infrastructure of NSZLInformation infrastructure of NSZL
The IT department con...
11 Linked Data at the National
Information infrastructure of NSZLInformation infrastructure of NSZL
The IT department is ...
12 Linked Data at the National
Road to the publicationRoad to the publication
13 Linked Data at the National
Motivation of our semantic webMotivation of our semantic web
developmentsdevelopments
Pers...
14 Linked Data at the National
Carrying out the developmentCarrying out the development
There were no specific projectThe...
15 Linked Data at the National
The very first stepsThe very first steps
ONE2 projectONE2 project
– Interoperability proje...
16 Linked Data at the National
SRU interface for AmicusSRU interface for Amicus
TEL-ME-MOR projectTEL-ME-MOR project
– To...
17 Linked Data at the National
SRU interface for AmicusSRU interface for Amicus
The important resultsThe important result...
18 Linked Data at the National
Development of LibriUrlDevelopment of LibriUrl
The requirement was toThe requirement was t...
19 Linked Data at the National
Development of LibriUrlDevelopment of LibriUrl
LibriUrl search:LibriUrl search:
http://lin...
20 Linked Data at the National
How does it work?How does it work?
21 Linked Data at the National
How does it work?How does it work?
22 Linked Data at the National
23 Linked Data at the National
24 Linked Data at the National
DemonstrationDemonstration
25 Linked Data at the National
DemonstrationDemonstration
26 Linked Data at the National
Development of LibriUrlDevelopment of LibriUrl
The importance of LibriUrlThe importance of...
27 Linked Data at the National
SKOSifying the thesaurusSKOSifying the thesaurus
TelPlus projectTelPlus project
– Thesauru...
28 Linked Data at the National
SKOSifying the thesaurusSKOSifying the thesaurus
Concept identifier is an IRI compatibleCo...
29 Linked Data at the National
SKOSifying the thesaurusSKOSifying the thesaurus
Serving SKOS to TelPlusServing SKOS to Te...
31 Linked Data at the National
SKOSifying the thesaurusSKOSifying the thesaurus
Importance of SKOS developmentImportance ...
32 Linked Data at the National
LIBRIS as an exampleLIBRIS as an example
ELAG, 2008, WageningenELAG, 2008, Wageningen
– LI...
33 Linked Data at the National
Focusing to the publicationFocusing to the publication
Realised that we have almost everyt...
34 Linked Data at the National
Focusing to the publicationFocusing to the publication
What were missingWhat were missing
...
35 Linked Data at the National
Name conventionName convention
Resource name for documentsResource name for documents
– /r...
36 Linked Data at the National
Name conventionName convention
Resource name for authorityResource name for authority
– /r...
37 Linked Data at the National
IdentifiersIdentifiers
DocumentsDocuments
• Amicus number (MARC 001)Amicus number (MARC 00...
38 Linked Data at the National
Content negotiationContent negotiation
Implementation of content negotiationImplementation...
39 Linked Data at the National
40 Linked Data at the National
41 Linked Data at the National
Creating RDF for catalogue recordsCreating RDF for catalogue records
Creating „RDFDC”Creati...
42 Linked Data at the National
Installation of RDF databaseInstallation of RDF database
JenaJena
Joseki SPARQL endpointJ...
43 Linked Data at the National
Creating FOAF for namesCreating FOAF for names
Batch processBatch process
– The name index...
44 Linked Data at the National
Contents of JenaContents of Jena
Names (FOAF)Names (FOAF)
Subject authority (SKOS)Subject...
45 Linked Data at the National
Creating HTML link auto-discoveryCreating HTML link auto-discovery
In the head of our OPAC...
46 Linked Data at the National
Creating linksCreating links
Links to NSZL resourcesLinks to NSZL resources
– Link from RD...
47 Linked Data at the National
Creating linksCreating links
 Links to external resourcesLinks to external resources
– Lin...
48 Linked Data at the National
Resolving the URL of documentsResolving the URL of documents
The URL of the documentThe UR...
49 Linked Data at the National
Resolving the URL of documentsResolving the URL of documents
Link generation to SKOSLink g...
50 Linked Data at the National
Resolving the URL of documentsResolving the URL of documents
Link generation to FOAFLink g...
53 Linked Data at the National
Resolving the URL of documentsResolving the URL of documents
Sample URL of a documentSampl...
54 Linked Data at the National
Resolving the URL of documentsResolving the URL of documents
Nektar proxyNektar proxy
– Ja...
57 Linked Data at the National
Resolving the URL of authority dataResolving the URL of authority data
Sample URL of an au...
60 Linked Data at the National
Resolving the URL of authority dataResolving the URL of authority data
Sample URL of an au...
63 Linked Data at the National
Current activitiesCurrent activities
Improving RDFDCImproving RDFDC
– Making RDFDC 100% co...
64 Linked Data at the National
Current activitiesCurrent activities
Improving SKOSImproving SKOS
– Inserting UDC equivale...
65 Linked Data at the National
Current activitiesCurrent activities
Improving FOAFImproving FOAF
– Including organisation...
66 Linked Data at the National
Current activitiesCurrent activities
VIAFVIAF
– Creating links from our FOAF to VIAFCreati...
67 Linked Data at the National
FRBRising the OPACFRBRising the OPAC
MethodMethod
– Collecting works, expressions andColle...
68 Linked Data at the National
FRBRising the OPACFRBRising the OPAC
Scope (at first)Scope (at first)
– Printed monographs...
71 Linked Data at the National
Current activitiesCurrent activities
Digital Library: OSZKDKDigital Library: OSZKDK
– Main...
73 Linked Data at the National
Planned discovery of OAI-OREPlanned discovery of OAI-ORE
„„Link rel” in the head of the OP...
74 Linked Data at the National
One resource map of test OSZKDKOne resource map of test OSZKDK
<rdf:Description<rdf:Descrip...
adam@oszk.huadam@oszk.hu
Thank you for your attentionThank you for your attention
Linked Data at the National Széchényi Library : road to the publication
Linked Data at the National Széchényi Library : road to the publication
Linked Data at the National Széchényi Library : road to the publication
Linked Data at the National Széchényi Library : road to the publication
Linked Data at the National Széchényi Library : road to the publication
Linked Data at the National Széchényi Library : road to the publication
Linked Data at the National Széchényi Library : road to the publication
Linked Data at the National Széchényi Library : road to the publication
Linked Data at the National Széchényi Library : road to the publication
Linked Data at the National Széchényi Library : road to the publication
Linked Data at the National Széchényi Library : road to the publication
Linked Data at the National Széchényi Library : road to the publication
Nächste SlideShare
Wird geladen in …5
×

Linked Data at the National Széchényi Library : road to the publication

189 Aufrufe

Veröffentlicht am

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

Veröffentlicht in: Technologie
  • Als Erste(r) kommentieren

  • Gehören Sie zu den Ersten, denen das gefällt!

Linked Data at the National Széchényi Library : road to the publication

  1. 1. Linked Data at the NationalLinked Data at the National Széchényi Library : road to theSzéchényi Library : road to the publicationpublication SWIB10 : SEMANTIC WEB IN BIBLIOTHEKENSWIB10 : SEMANTIC WEB IN BIBLIOTHEKEN Cologne, 29–30 November, 2010Cologne, 29–30 November, 2010 ÁdámÁdám HorváthHorváth National Széchényi LibraryNational Széchényi Library
  2. 2. 2 Linked Data at the National Széchényi ContentsContents Why I am hereWhy I am here Background information on NSZLBackground information on NSZL Road to the publicationRoad to the publication Current developments and future plansCurrent developments and future plans
  3. 3. 3 Linked Data at the National Széchényi The newsThe news The National Széchényi Library (NSZL) hasThe National Széchényi Library (NSZL) has recently published its entire OPAC andrecently published its entire OPAC and Digital Library and the correspondingDigital Library and the corresponding authority data as Linked Open Data.authority data as Linked Open Data. (2010.04.20)(2010.04.20)
  4. 4. 4 Linked Data at the National Széchényi The newsThe news The used vocabularies areThe used vocabularies are – RDFDC for bibliographic data,RDFDC for bibliographic data, – FOAF for nameFOAF for namess, and, and – SKOS for subject terms and geographicalSKOS for subject terms and geographical namesnames
  5. 5. 5 Linked Data at the National Széchényi The newsThe news  NSZL uses CoolURIsNSZL uses CoolURIs  Every resource has both RDF and HTMLEvery resource has both RDF and HTML representationrepresentation  Our RDFDC, FAOF and SKOS statements areOur RDFDC, FAOF and SKOS statements are linked togetherlinked together  Our name authority is matched with the DBPediaOur name authority is matched with the DBPedia name filesname files  URI aliases are handled as owl:sameAsURI aliases are handled as owl:sameAs statementsstatements  NSZL also supports the HTML link auto-discoveryNSZL also supports the HTML link auto-discovery
  6. 6. 6 Linked Data at the National Széchényi Information infrastructure of NSZLInformation infrastructure of NSZL Integrated library systemIntegrated library system – AmicusAmicus • Consortium systemConsortium system • ViewsViews • Oracle basedOracle based • Authority handlingAuthority handling • Do not handle all thesaurus relation typesDo not handle all thesaurus relation types • Products moduleProducts module • Z39.50 serverZ39.50 server
  7. 7. 7 Linked Data at the National Széchényi Information infrastructure of NSZLInformation infrastructure of NSZL OPACOPAC – LibriVisionLibriVision • HTMLHTML • XML and XSLT basedXML and XSLT based • Z39.50 clientZ39.50 client • Session basedSession based
  8. 8. 8 Linked Data at the National Széchényi Information infrastructure of NSZLInformation infrastructure of NSZL Thesaurus handlingThesaurus handling – RelexRelex • Contains general terms and geographical namesContains general terms and geographical names • It uses all possible relation type available in ISO2788It uses all possible relation type available in ISO2788 • It also contains UDC equivalents and coordinatesIt also contains UDC equivalents and coordinates • Relex can produce MARC outputRelex can produce MARC output • Relex uses the descriptors themselves as identifiersRelex uses the descriptors themselves as identifiers • Subject terms in Amicus is based on RelexSubject terms in Amicus is based on Relex
  9. 9. 9 Linked Data at the National Széchényi Information infrastructure of NSZLInformation infrastructure of NSZL MARC is HUNMARCMARC is HUNMARC – MARC21 basedMARC21 based – No punctuation marc in recordsNo punctuation marc in records – More subfieldsMore subfields – Punctuation is program generatedPunctuation is program generated – MARC21 tools and utilities can’t be usedMARC21 tools and utilities can’t be used
  10. 10. 10 Linked Data at the National Information infrastructure of NSZLInformation infrastructure of NSZL The IT department containsThe IT department contains – ProgrammersProgrammers – System librariansSystem librarians – Maintenance stuffMaintenance stuff
  11. 11. 11 Linked Data at the National Information infrastructure of NSZLInformation infrastructure of NSZL The IT department is responsible forThe IT department is responsible for – Integrated library systemIntegrated library system – Developing digital libraryDeveloping digital library – Developing other utilitiesDeveloping other utilities – Maintaining the whole IT infrastructureMaintaining the whole IT infrastructure Not responsible forNot responsible for – DigitisationDigitisation – HomepageHomepage
  12. 12. 12 Linked Data at the National Road to the publicationRoad to the publication
  13. 13. 13 Linked Data at the National Motivation of our semantic webMotivation of our semantic web developmentsdevelopments Personal interestPersonal interest Interested colleaguesInterested colleagues – Kornél Horváth (horvath.kornel@oszk.hu)Kornél Horváth (horvath.kornel@oszk.hu) – Zsolt Zachár (zachar.zsolt@oszk.hu)Zsolt Zachár (zachar.zsolt@oszk.hu) Semantic web is a cool thingSemantic web is a cool thing My friends are also publishing their dataMy friends are also publishing their data Our role is to provide dataOur role is to provide data
  14. 14. 14 Linked Data at the National Carrying out the developmentCarrying out the development There were no specific projectThere were no specific project Small developments pointing to the sameSmall developments pointing to the same directiondirection We developed it when time permittedWe developed it when time permitted
  15. 15. 15 Linked Data at the National The very first stepsThe very first steps ONE2 projectONE2 project – Interoperability projectInteroperability project – Z39.50Z39.50 – SRU emerged by the end of the projectSRU emerged by the end of the project – Semantic web was also mentionedSemantic web was also mentioned
  16. 16. 16 Linked Data at the National SRU interface for AmicusSRU interface for Amicus TEL-ME-MOR projectTEL-ME-MOR project – To make NSZL searchable on the TEL portal viaTo make NSZL searchable on the TEL portal via SRUSRU YAZ Proxy was usedYAZ Proxy was used – SRU/Z39.50 gatewaySRU/Z39.50 gateway – User defined XSLTUser defined XSLT – Result set is according to the TEL ApplicationResult set is according to the TEL Application profileprofile
  17. 17. 17 Linked Data at the National SRU interface for AmicusSRU interface for Amicus The important resultsThe important results – URL based searchURL based search – XML result setXML result set • TTELAPELAP • MARCXMLMARCXML – RDFDC is provided via YAZ ProxyRDFDC is provided via YAZ Proxy
  18. 18. 18 Linked Data at the National Development of LibriUrlDevelopment of LibriUrl The requirement was toThe requirement was to – make LibriVision OpenUrl compatiblemake LibriVision OpenUrl compatible – provide access to OPAC records via URLprovide access to OPAC records via URL The problem was that LibriVision isThe problem was that LibriVision is – Session based and requires loginSession based and requires login LibriUrlLibriUrl – URL based search interface for the OPACURL based search interface for the OPAC – DDeveloped by NSZL on the bases of a vendoreveloped by NSZL on the bases of a vendor software codesoftware code
  19. 19. 19 Linked Data at the National Development of LibriUrlDevelopment of LibriUrl LibriUrl search:LibriUrl search: http://link.oszk.hu/libriurl.php?http://link.oszk.hu/libriurl.php? LN=en&DB=any&SRY=an&SRE=2616972LN=en&DB=any&SRY=an&SRE=2616972 LibriUrl side effectsLibriUrl side effects – Search for Amicus number is a link to a specificSearch for Amicus number is a link to a specific recordrecord – Our records became bookmarkable and linkableOur records became bookmarkable and linkable and OpenSearchableand OpenSearchable
  20. 20. 20 Linked Data at the National How does it work?How does it work?
  21. 21. 21 Linked Data at the National How does it work?How does it work?
  22. 22. 22 Linked Data at the National
  23. 23. 23 Linked Data at the National
  24. 24. 24 Linked Data at the National DemonstrationDemonstration
  25. 25. 25 Linked Data at the National DemonstrationDemonstration
  26. 26. 26 Linked Data at the National Development of LibriUrlDevelopment of LibriUrl The importance of LibriUrlThe importance of LibriUrl – It was behind of our CoolURIIt was behind of our CoolURI http://link.oszk.hu/libriurl.php?http://link.oszk.hu/libriurl.php? LN=en&DB=any&SRY=an&SRE=2616972LN=en&DB=any&SRY=an&SRE=2616972
  27. 27. 27 Linked Data at the National SKOSifying the thesaurusSKOSifying the thesaurus TelPlus projectTelPlus project – Thesaurus in SKOS for search refinementThesaurus in SKOS for search refinement SKOS conversionSKOS conversion – SKOS is converted from the MARC output ofSKOS is converted from the MARC output of RelexRelex – Not every thesaurus relation type is convertedNot every thesaurus relation type is converted – UDC and coordinates are also not includedUDC and coordinates are also not included
  28. 28. 28 Linked Data at the National SKOSifying the thesaurusSKOSifying the thesaurus Concept identifier is an IRI compatibleConcept identifier is an IRI compatible descriptor:descriptor: – 150 ** a150 ** a abszurd drámaabszurd dráma – <skos:Concept<skos:Concept rdf:about="http://nektar.oszk.hu/auth/rdf:about="http://nektar.oszk.hu/auth/ abszurd_drámaabszurd_dráma">">
  29. 29. 29 Linked Data at the National SKOSifying the thesaurusSKOSifying the thesaurus Serving SKOS to TelPlusServing SKOS to TelPlus – The SKOS XML file is indexed by Zebra andThe SKOS XML file is indexed by Zebra and served via SRUserved via SRU – http://193.6.201.195:9996/skos?http://193.6.201.195:9996/skos? version=1.1&operation=searchRetrieve&query=version=1.1&operation=searchRetrieve&query= %22Gravenhage%22Gravenhage %22&startRecord=1&maximumRecords=10%22&startRecord=1&maximumRecords=10 – It is not RDF/XMLIt is not RDF/XML
  30. 30. 31 Linked Data at the National SKOSifying the thesaurusSKOSifying the thesaurus Importance of SKOS developmentImportance of SKOS development – Having a conversion tool for creating SKOSHaving a conversion tool for creating SKOS recordsrecords
  31. 31. 32 Linked Data at the National LIBRIS as an exampleLIBRIS as an example ELAG, 2008, WageningenELAG, 2008, Wageningen – LIBRIS’ linked open data was presentedLIBRIS’ linked open data was presented – Content negotiationContent negotiation – Cool URICool URI – Link relLink rel
  32. 32. 33 Linked Data at the National Focusing to the publicationFocusing to the publication Realised that we have almost everything toRealised that we have almost everything to be able to publish our data as LODbe able to publish our data as LOD We hadWe had – SKOSSKOS – LibriUrl (accessing OPAC records via URL)LibriUrl (accessing OPAC records via URL) – YAZ Proxy - SRU (URL based search inYAZ Proxy - SRU (URL based search in Amicus)Amicus) – LIBRIS as an exampleLIBRIS as an example
  33. 33. 34 Linked Data at the National Focusing to the publicationFocusing to the publication What were missingWhat were missing – Name convention of resourcesName convention of resources – IdentifiersIdentifiers – Content negotiationsContent negotiations – RDFDCRDFDC – RDF databaseRDF database – FOAFFOAF – Link rel metatags in the OPAC headerLink rel metatags in the OPAC header – Creating linksCreating links
  34. 34. 35 Linked Data at the National Name conventionName convention Resource name for documentsResource name for documents – /resource/manifestation/2645471/resource/manifestation/2645471 Name for RDF representationName for RDF representation – /data/manifestation/2645471/data/manifestation/2645471 Name for HTML representationName for HTML representation – /hu/manifestation/2645471/hu/manifestation/2645471 – /en/manifestation/2645471/en/manifestation/2645471
  35. 35. 36 Linked Data at the National Name conventionName convention Resource name for authorityResource name for authority – /resource/auth/33589/resource/auth/33589 Name for RDF representationName for RDF representation – /data/auth/33589/data/auth/33589 Name for HTML representationName for HTML representation – /auth/33589/auth/33589
  36. 36. 37 Linked Data at the National IdentifiersIdentifiers DocumentsDocuments • Amicus number (MARC 001)Amicus number (MARC 001) Subject authority (thesaurus)Subject authority (thesaurus) • The descriptor itself with some conversion rulesThe descriptor itself with some conversion rules NamesNames • Special number stored in the Amicus databaseSpecial number stored in the Amicus database
  37. 37. 38 Linked Data at the National Content negotiationContent negotiation Implementation of content negotiationImplementation of content negotiation – 303 redirection was chosen303 redirection was chosen
  38. 38. 39 Linked Data at the National
  39. 39. 40 Linked Data at the National
  40. 40. 41 Linked Data at the National Creating RDF for catalogue recordsCreating RDF for catalogue records Creating „RDFDC”Creating „RDFDC” XSLT does the jobXSLT does the job – It is MARCXML RDF/XML conversionIt is MARCXML RDF/XML conversion • Modification of the MARC to TEL ApplicationModification of the MARC to TEL Application profile conversionprofile conversion – Creates links to subjects and namesCreates links to subjects and names Used vocabulariesUsed vocabularies – Dublin CoreDublin Core – BIBOBIBO
  41. 41. 42 Linked Data at the National Installation of RDF databaseInstallation of RDF database JenaJena Joseki SPARQL endpointJoseki SPARQL endpoint
  42. 42. 43 Linked Data at the National Creating FOAF for namesCreating FOAF for names Batch processBatch process – The name index of Amicus is usedThe name index of Amicus is used FOAF is stored in and served from JenaFOAF is stored in and served from Jena During update always the entire FOAFDuring update always the entire FOAF dataset is rebuiltdataset is rebuilt
  43. 43. 44 Linked Data at the National Contents of JenaContents of Jena Names (FOAF)Names (FOAF) Subject authority (SKOS)Subject authority (SKOS) – It is still available from Zebra via SRUIt is still available from Zebra via SRU Catalogue records (RDFDC)Catalogue records (RDFDC) All of our linked data can be searchedAll of our linked data can be searched via SPARQLvia SPARQL
  44. 44. 45 Linked Data at the National Creating HTML link auto-discoveryCreating HTML link auto-discovery In the head of our OPAC extendedIn the head of our OPAC extended view pagesview 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/manifestathref="http://nektar.oszk.hu/data/manifestat ion/2645471" />ion/2645471" />
  45. 45. 46 Linked Data at the National Creating linksCreating links Links to NSZL resourcesLinks to NSZL resources – Link from RDFDC to nameLink from RDFDC to namess andand subjectsubjectss <dcterms:creator<dcterms:creator rdf:resource="http://nektar.oszk.hu/resource/rdf:resource="http://nektar.oszk.hu/resource/ auth/33589"/>auth/33589"/> <dc:creator>Jókai Mór (1825-1904)</dc:creator><dc:creator>Jókai Mór (1825-1904)</dc:creator>
  46. 46. 47 Linked Data at the National Creating linksCreating links  Links to external resourcesLinks to external resources – Link from the name authority records to DBpediaLink from the name authority records to DBpedia <foaf:Person<foaf:Person rdf:about="http://nektar.oszk.hu/resource/auth/33589">rdf:about="http://nektar.oszk.hu/resource/auth/33589"> <foaf:name>Jókai Mór (1825-1904)</foaf:name><foaf:name>Jókai Mór (1825-1904)</foaf:name> <<owl:sameAsowl:sameAs rdf:resource="http://rdf:resource="http://dbpedia.orgdbpedia.org/resource/M/resource/M %C3%B3r_J%C3%B3kai"/>%C3%B3r_J%C3%B3kai"/>
  47. 47. 48 Linked Data at the National Resolving the URL of documentsResolving the URL of documents The URL of the documentThe URL of the document – /resource/manifestation/2645471/resource/manifestation/2645471 RDF is requestedRDF is requested – Redirection to /data/manifestation/2645471Redirection to /data/manifestation/2645471 – PHP program gathersPHP program gathers • MARCXMLMARCXML • Name idsName ids – XSLT creates RDF/XML with linksXSLT creates RDF/XML with links
  48. 48. 49 Linked Data at the National Resolving the URL of documentsResolving the URL of documents Link generation to SKOSLink generation to SKOS – Automatic conversionAutomatic conversion • from the literalfrom the literal – <dcterms:subject>abszurd dráma<dcterms:subject>abszurd dráma </dcterms:subject></dcterms:subject> • to the Conceptto the Concept – <dcterms:subject<dcterms:subject rdf:resource="http://nektar.oszk.hu/resource/auth/abszurdrdf:resource="http://nektar.oszk.hu/resource/auth/abszurd _dráma"/>_dráma"/>
  49. 49. 50 Linked Data at the National Resolving the URL of documentsResolving the URL of documents Link generation to FOAFLink generation to FOAF – The XSLT gets the name ids as parameters andThe XSLT gets the name ids as parameters and creates the linkscreates the links <dc:creator>Jókai Mór (1825-1904)</dc:creator><dc:creator>Jókai Mór (1825-1904)</dc:creator> <dcterms:creator<dcterms:creator rdf:resource="http://nektar.oszk.hu/resource/authrdf:resource="http://nektar.oszk.hu/resource/auth /33589"/>/33589"/>
  50. 50. 53 Linked Data at the National Resolving the URL of documentsResolving the URL of documents Sample URL of a documentSample URL of a document /resource/manifestation/2645471/resource/manifestation/2645471 HTML is requestedHTML is requested – Redirection toRedirection to /hu/manifestation/2645471 or/hu/manifestation/2645471 or /en/manifestation/2645471/en/manifestation/2645471 – Nektar proxy calledNektar proxy called
  51. 51. 54 Linked Data at the National Resolving the URL of documentsResolving the URL of documents Nektar proxyNektar proxy – Java servlet (substitution of LibriUrl)Java servlet (substitution of LibriUrl) – It doesIt does • Loging into LibriVision and getting session idLoging into LibriVision and getting session id • Searching for the manifestation id and gettingSearching for the manifestation id and getting query id, etcquery id, etc • Sending present request and getting the searchSending present request and getting the search result pageresult page • Creating the final HTML pageCreating the final HTML page – Replacing URL-s, filling in the header, etcReplacing URL-s, filling in the header, etc
  52. 52. 57 Linked Data at the National Resolving the URL of authority dataResolving the URL of authority data Sample URL of an authority recordSample URL of an authority record /resource/auth/33589/resource/auth/33589 RDF is requestedRDF is requested – Jena is searched via the Joseki SPARQLJena is searched via the Joseki SPARQL endpointendpoint – RDF/XML is given backRDF/XML is given back
  53. 53. 60 Linked Data at the National Resolving the URL of authority dataResolving the URL of authority data Sample URL of an authority recordSample URL of an authority record /resource/auth/33589/resource/auth/33589 HTML is requestedHTML is requested – Jena is searched via the Joseki SPARQLJena is searched via the Joseki SPARQL endpointendpoint – RDF/XML is given backRDF/XML is given back – XSLT creates the HTML pageXSLT creates the HTML page
  54. 54. 63 Linked Data at the National Current activitiesCurrent activities Improving RDFDCImproving RDFDC – Making RDFDC 100% compliant with theMaking RDFDC 100% compliant with the DCMI Metadata TermsDCMI Metadata Terms • Proper usage of dc:creator and dcterms:creatorProper usage of dc:creator and dcterms:creator • Better conversion of title and publisherBetter conversion of title and publisher
  55. 55. 64 Linked Data at the National Current activitiesCurrent activities Improving SKOSImproving SKOS – Inserting UDC equivalent of ConceptsInserting UDC equivalent of Concepts – Inserting USE AND and other relationshipsInserting USE AND and other relationships – Inserting coordinates of geographicalInserting coordinates of geographical namesnames
  56. 56. 65 Linked Data at the National Current activitiesCurrent activities Improving FOAFImproving FOAF – Including organisationsIncluding organisations
  57. 57. 66 Linked Data at the National Current activitiesCurrent activities VIAFVIAF – Creating links from our FOAF to VIAFCreating links from our FOAF to VIAF Studying VirtuosoStudying Virtuoso – Jena might be changed to VirtuosoJena might be changed to Virtuoso FRBRising the OPACFRBRising the OPAC
  58. 58. 67 Linked Data at the National FRBRising the OPACFRBRising the OPAC MethodMethod – Collecting works, expressions andCollecting works, expressions and manifestations from the „MARC dump” ofmanifestations from the „MARC dump” of our catalogueour catalogue – Creating RDF representations based on IanCreating RDF representations based on Ian Davis: Expression of Core FRBR ConceptsDavis: Expression of Core FRBR Concepts in RDFin RDF – Loading the RDF representations into JenaLoading the RDF representations into Jena – Showing the work tree based onShowing the work tree based on manifestation idmanifestation id
  59. 59. 68 Linked Data at the National FRBRising the OPACFRBRising the OPAC Scope (at first)Scope (at first) – Printed monographsPrinted monographs • Excluding multivolumeExcluding multivolume – This is a „post” FRBRisationThis is a „post” FRBRisation UsageUsage – OPAC/Extended view/Link to the work treeOPAC/Extended view/Link to the work tree First resultsFirst results
  60. 60. 71 Linked Data at the National Current activitiesCurrent activities Digital Library: OSZKDKDigital Library: OSZKDK – Mainly contains deposit copiesMainly contains deposit copies – It is also published as LODIt is also published as LOD OAI-ORE is being implemented as aOAI-ORE is being implemented as a container of structural metadatacontainer of structural metadata – Used parts: resource map, aggregationUsed parts: resource map, aggregation – Used vocabularies: DC, BIBOUsed vocabularies: DC, BIBO – It is in test phase nowIt is in test phase now
  61. 61. 73 Linked Data at the National Planned discovery of OAI-OREPlanned discovery of OAI-ORE „„Link rel” in the head of the OPAC ofLink rel” in the head of the OPAC of OSZKDKOSZKDK – <link rel="meta"<link rel="meta" type="application/rdf+xml"type="application/rdf+xml" title=„OAI-ORE resource map"title=„OAI-ORE resource map" href="http://oszkdk.oszk.hu/rem/drj/869" />href="http://oszkdk.oszk.hu/rem/drj/869" />
  62. 62. 74 Linked Data at the National One resource map of test OSZKDKOne resource map of test OSZKDK <rdf:Description<rdf:Description rdf:about="rdf:about="http://oszkdk.oszk.hu/rem/drj/876http://oszkdk.oszk.hu/rem/drj/876">"> <<rdf:typerdf:type rdf:resource="http://www.openarchives.org/ore/termsrdf:resource="http://www.openarchives.org/ore/terms //ResourceMapResourceMap"/>"/> <<dcterms:modifieddcterms:modified rdf:datatype="http://www.w3.org/2001/XMLSchema#drdf:datatype="http://www.w3.org/2001/XMLSchema#d ate">2010-04-07</dcterms:modified>ate">2010-04-07</dcterms:modified> <<dcterms:creatordcterms:creator rdf:resource="http://oszkdk.oszk.hu/"/>rdf:resource="http://oszkdk.oszk.hu/"/> <<ore:describesore:describes rdf:resource="rdf:resource="http://oszkdk.oszk.hu/aggr/drj/876http://oszkdk.oszk.hu/aggr/drj/876"/>"/> </rdf:Description></rdf:Description>
  63. 63. adam@oszk.huadam@oszk.hu Thank you for your attentionThank you for your attention

×