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Linked Open DataLinked Open Data
HorváthHorváth ÁdámÁdám
Museum of Fine Arts, BudapestMuseum of Fine Arts, Budapest
MUZEUM...
TerminologyTerminology
Linked Open Data (LOD)Linked Open Data (LOD)
Semantic webSemantic web (semweb)(semweb)
Open Link...
ContentContentss
Semantic web basicsSemantic web basics
Web and semantic webWeb and semantic web
Advantages of linked d...
Semantic web basicsSemantic web basics
SSet of linked RDF statementset of linked RDF statements
RDFRDF
– Resource Descri...
Semantic web basicsSemantic web basics
RDF statementRDF statement
– Abstract exampleAbstract example
• DeDeccameron’samer...
Semantic web basicsSemantic web basics
Concrete example (RDF/XML)Concrete example (RDF/XML)
– SubjectSubject
• <bibo:Docu...
Semantic web basicsSemantic web basics
Concrete example (RDF/XML)Concrete example (RDF/XML)
– PredicatePredicate
• http:/...
Semantic web basicsSemantic web basics
Concrete example (RDF/XML)Concrete example (RDF/XML)
– ObjectObject
• http://nekta...
Semantic web basicsSemantic web basics
Concrete example (RDF/XML)Concrete example (RDF/XML)
– Subject, predicate, objectS...
Semantic web basicsSemantic web basics
Concrete example (RDF/XML)Concrete example (RDF/XML)
– Subject, predicate, object ...
Semantic web basicsSemantic web basics
Predicates of the previous pagesPredicates of the previous pages
– bibo:Documentbi...
Semantic web basicsSemantic web basics
Statements can be linked togetherStatements can be linked together
easilyeasily
– ...
Web and the semantic webWeb and the semantic web
The web links pagesThe web links pages
The semantic web links dataThe s...
AdvantageAdvantagess of linked dataof linked data
The linked data can provide a uniformThe linked data can provide a unif...
Advantages of linked dataAdvantages of linked data
technologytechnology
There are problems that can be solvedThere are pr...
Semantic web and the culturalSemantic web and the cultural
institutionsinstitutions
The data of cultural institutions can...
The semweb and the culturalThe semweb and the cultural
institutionsinstitutions
The main role is to publish the dataThe m...
Libraries on the semantic webLibraries on the semantic web
The full library contentsThe full library contents
– LIBRIS (U...
Museums on the semantic webMuseums on the semantic web
Yale Centre of British ArtYale Centre of British Art
– Full collec...
Museums on the semantic webMuseums on the semantic web
MuseumFinlandMuseumFinland
Amsterdam MuseumAmsterdam Museum
LODA...
Europeana on the semantic webEuropeana on the semantic web
Europeana Data Model (EDM)Europeana Data Model (EDM)
– First i...
Semantic data examplesSemantic data examples
Yale Centre of British ArtYale Centre of British Art
– Via a link on an HTML...
http://collection.britishart.yale.edu/id/object/8052
How to see semantic dataHow to see semantic data
Yale Centre of British ArtYale Centre of British Art
– Via a link on an ...
Semantic web browsSemantic web browsersers
DiscoDisco
DotAcDotAc
EldaElda
MarblesMarbles
OpenLinkDataExplorerOpenLink...
Semantic web browersSemantic web browers
OpenLink Data ExplorerOpenLink Data Explorer
Linked Open Data – Ádám Horváth - Mu...
Semantic web browersSemantic web browers
OpenLink Data ExplorerOpenLink Data Explorer
Linked Open Data – Ádám Horváth - M...
Semantic web browersSemantic web browers
OpenLink Data ExplorerOpenLink Data Explorer
Linked Open Data – Ádám Horváth - M...
Semantic searchSemantic search
Europeanna ConnectEuropeanna Connect
– WP1 Creating the Europeana SemanticWP1 Creating the...
Semantic web applicatonsSemantic web applicatons
Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest
Semantic SearchSemantic Search
works showing matching personworks showing matching person
works showing locationworks sh...
Semantic searchSemantic search
ResearchSpaceResearchSpace
– http://www.researchspace.org/online-http://www.researchspace....
Semantic searchSemantic search
ResearchSpaceResearchSpace
– https://www.youtube.com/watch?https://www.youtube.com/watch?
...
Site based on linked dataSite based on linked data
Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest
How to publish your dataHow to publish your data
Convert your data into RDF statementsConvert your data into RDF statemen...
Useful informationUseful information
Cool URIs for the Semantic WebCool URIs for the Semantic Web
– http://www.w3.org/TR/...
Museum of Fine ArtsMuseum of Fine Arts and semweband semweb
The museum has already decided toThe museum has already decid...
adam.horvathadam.horvath@@szepmuveszti.huszepmuveszti.hu
Thank you for your attentionThank you for your attention
Linked Open Data
Linked Open Data
Linked Open Data
Linked Open Data
Linked Open Data
Linked Open Data
Linked Open Data
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Linked Open Data

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Introduction to linked open data
Libraries and museums on the semantic web
Applications using linked data technologies

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Linked Open Data

  1. 1. Linked Open DataLinked Open Data HorváthHorváth ÁdámÁdám Museum of Fine Arts, BudapestMuseum of Fine Arts, Budapest MUZEUM@DIGITMUZEUM@DIGIT Múzeumi Digitalizálási KonferenciaMúzeumi Digitalizálási Konferencia Budapest, 2013. június 10–11.Budapest, 2013. június 10–11.
  2. 2. TerminologyTerminology Linked Open Data (LOD)Linked Open Data (LOD) Semantic webSemantic web (semweb)(semweb) Open Linked DataOpen Linked Data TThe web of Linked Open Datahe web of Linked Open Data Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest
  3. 3. ContentContentss Semantic web basicsSemantic web basics Web and semantic webWeb and semantic web Advantages of linked dataAdvantages of linked data Cultural institutions on the semantic webCultural institutions on the semantic web Semantic data examplesSemantic data examples Semantic searchSemantic search How to publish your dataHow to publish your data Museum of Fine Arts and the semwebMuseum of Fine Arts and the semweb
  4. 4. Semantic web basicsSemantic web basics SSet of linked RDF statementset of linked RDF statements RDFRDF – Resource Description FrameworkResource Description Framework Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest
  5. 5. Semantic web basicsSemantic web basics RDF statementRDF statement – Abstract exampleAbstract example • DeDeccameron’sameron’s author isauthor is BoccaccioBoccaccio • SubjectSubject PredicatePredicate ObjectObject Rules of RDF statementRules of RDF statement – Subject, predicate must be URISubject, predicate must be URI – Object can be URI or literalObject can be URI or literal Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest
  6. 6. Semantic web basicsSemantic web basics Concrete example (RDF/XML)Concrete example (RDF/XML) – SubjectSubject • <bibo:Document<bibo:Document rdf:about="rdf:about="http://nektar.oszk.hu/resource/manifhttp://nektar.oszk.hu/resource/manif estation/3078548estation/3078548">"> Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest
  7. 7. Semantic web basicsSemantic web basics Concrete example (RDF/XML)Concrete example (RDF/XML) – PredicatePredicate • http://purl.org/dc/terms/creatorhttp://purl.org/dc/terms/creator Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest
  8. 8. Semantic web basicsSemantic web basics Concrete example (RDF/XML)Concrete example (RDF/XML) – ObjectObject • http://nektar.oszk.hu/resource/auth/122083http://nektar.oszk.hu/resource/auth/122083 – This URI identifies BoccaccioThis URI identifies Boccaccio Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest
  9. 9. Semantic web basicsSemantic web basics Concrete example (RDF/XML)Concrete example (RDF/XML) – Subject, predicate, objectSubject, predicate, object ((fullfull URI)URI) <bibo:Document<bibo:Document rdf:about="rdf:about="http://nektar.oszk.hu/resource/manifeshttp://nektar.oszk.hu/resource/manifes tation/3078548tation/3078548">"> <<http://purl.org/dc/termshttp://purl.org/dc/terms/creatorcreator rdf:resource="rdf:resource="http://nektar.oszk.hu/resource/auth/http://nektar.oszk.hu/resource/auth/ 122083122083""/>/> Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest
  10. 10. Semantic web basicsSemantic web basics Concrete example (RDF/XML)Concrete example (RDF/XML) – Subject, predicate, object (abbreviated URI)Subject, predicate, object (abbreviated URI) • http://purl.org/dc/termshttp://purl.org/dc/terms/creatorcreator -> dcterms:creator-> dcterms:creator <bibo:Document<bibo:Document rdf:about="rdf:about="http://nektar.oszk.hu/resource/http://nektar.oszk.hu/resource/ manifestation/3078548manifestation/3078548">"> <dcterms:creator<dcterms:creator rdf:resource="rdf:resource="http://nektar.oszk.hu/resourchttp://nektar.oszk.hu/resourc e/auth/122083e/auth/122083""/>/> <<dc:creatordc:creator>>Boccaccio, Giovanni (1313-Boccaccio, Giovanni (1313- 1375)</dc:creator1375)</dc:creator>> Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest
  11. 11. Semantic web basicsSemantic web basics Predicates of the previous pagesPredicates of the previous pages – bibo:Documentbibo:Document – dcterms:creatordcterms:creator – dc:creatordc:creator Prefixes represent element setsPrefixes represent element sets – CRMCRM Strings after the colon are theStrings after the colon are the properties of the element setproperties of the element set Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest
  12. 12. Semantic web basicsSemantic web basics Statements can be linked togetherStatements can be linked together easilyeasily – The object of a statement can be theThe object of a statement can be the subject of anothersubject of another Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest
  13. 13. Web and the semantic webWeb and the semantic web The web links pagesThe web links pages The semantic web links dataThe semantic web links data The web is similar to a documentThe web is similar to a document The semantic web is similar to a databaseThe semantic web is similar to a database – RDF is the format of the databaseRDF is the format of the database – This database is independent from any applicationThis database is independent from any application The web was created for humansThe web was created for humans The semantic web was created for machinesThe semantic web was created for machines Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest
  14. 14. AdvantageAdvantagess of linked dataof linked data The linked data can provide a uniformThe linked data can provide a uniform access mechanismaccess mechanism – The linked data can be considered as aThe linked data can be considered as a worldwide APIworldwide API Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest
  15. 15. Advantages of linked dataAdvantages of linked data technologytechnology There are problems that can be solvedThere are problems that can be solved more easily with using semantic webmore easily with using semantic web technologytechnology – National Széchényi Library uses triplestoreNational Széchényi Library uses triplestore and SPARQL to retrieve all editions of aand SPARQL to retrieve all editions of a certain workcertain work – Oracle uses PROV to track changes overOracle uses PROV to track changes over time for metadata from heterogeneoustime for metadata from heterogeneous systemssystems Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest
  16. 16. Semantic web and the culturalSemantic web and the cultural institutionsinstitutions The data of cultural institutions can beThe data of cultural institutions can be shared by the means of a generallyshared by the means of a generally used toolused tool The cultural data can have a newThe cultural data can have a new meaning in this environmentmeaning in this environment The data of cultural institutions can beThe data of cultural institutions can be transferred into RDF statementstransferred into RDF statements relatively easyrelatively easy Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest
  17. 17. The semweb and the culturalThe semweb and the cultural institutionsinstitutions The main role is to publish the dataThe main role is to publish the data – Crating semantic web applications is theCrating semantic web applications is the task of software developerstask of software developers Cultural institutions can use semanticCultural institutions can use semantic web technologiesweb technologies Cultural institutions can use semanticCultural institutions can use semantic web to enrich their own dataweb to enrich their own data Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest
  18. 18. Libraries on the semantic webLibraries on the semantic web The full library contentsThe full library contents – LIBRIS (Union Catalogue of Sweden)LIBRIS (Union Catalogue of Sweden) – National SzéchényiNational Széchényi LibraryLibrary Bibliographical dataBibliographical data – British LibraryBritish Library – Deutsche National BibliothekDeutsche National Bibliothek – Biblioteca Nacional de EspaBiblioteca Nacional de Españñaa Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest
  19. 19. Museums on the semantic webMuseums on the semantic web Yale Centre of British ArtYale Centre of British Art – Full collectionFull collection – Also supporter of open data (and pictures)Also supporter of open data (and pictures) – TMS userTMS user Smithsonian American Art MuseumSmithsonian American Art Museum – Full collectionFull collection – Links to Dbpedia, ULANLinks to Dbpedia, ULAN – TMS userTMS user Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest
  20. 20. Museums on the semantic webMuseums on the semantic web MuseumFinlandMuseumFinland Amsterdam MuseumAmsterdam Museum LODAC Museum (Japan): 114 museumLODAC Museum (Japan): 114 museum Italian MuseumsItalian Museums – http://http://www.linkedopendata.it/datasets/museiwww.linkedopendata.it/datasets/musei British MuseumBritish Museum – Online CollectionOnline Collection – http://collection.britishmuseum.org/http://collection.britishmuseum.org/ Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest
  21. 21. Europeana on the semantic webEuropeana on the semantic web Europeana Data Model (EDM)Europeana Data Model (EDM) – First implementation: Europeana Linked DataFirst implementation: Europeana Linked Data PilotPilot • data.europeana.eudata.europeana.eu – Technical descriptionTechnical description • http://http://pro.europeana.eupro.europeana.eu/web/guest/tech-details/web/guest/tech-details Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest
  22. 22. Semantic data examplesSemantic data examples Yale Centre of British ArtYale Centre of British Art – Via a link on an HTML pageVia a link on an HTML page – http://http:// collections.britishart.yale.edu/vufind/Record/36collections.britishart.yale.edu/vufind/Record/36 Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest
  23. 23. http://collection.britishart.yale.edu/id/object/8052
  24. 24. How to see semantic dataHow to see semantic data Yale Centre of British ArtYale Centre of British Art – Via a link on an HTML pageVia a link on an HTML page • http://collections.britishart.yale.edu/vufind/Rechttp://collections.britishart.yale.edu/vufind/Rec ord/3646000ord/3646000 – Via SPARQL endpointVia SPARQL endpoint • http://collection.britishart.yale.edu/sparqlhttp://collection.britishart.yale.edu/sparql Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest
  25. 25. Semantic web browsSemantic web browsersers DiscoDisco DotAcDotAc EldaElda MarblesMarbles OpenLinkDataExplorerOpenLinkDataExplorer Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest RippleRipple SIOC BrowserSIOC Browser Sig.maSig.ma TabulatorTabulator ZitgistZitgist Source:Source: http://http://www.w3.org/2001/sw/wiki/Category:Semantic_Web_Browserwww.w3.org/2001/sw/wiki/Category:Semantic_Web_Browser
  26. 26. Semantic web browersSemantic web browers OpenLink Data ExplorerOpenLink Data Explorer Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest
  27. 27. Semantic web browersSemantic web browers OpenLink Data ExplorerOpenLink Data Explorer Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest
  28. 28. Semantic web browersSemantic web browers OpenLink Data ExplorerOpenLink Data Explorer Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest
  29. 29. Semantic searchSemantic search Europeanna ConnectEuropeanna Connect – WP1 Creating the Europeana SemanticWP1 Creating the Europeana Semantic LayerLayer Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest
  30. 30. Semantic web applicatonsSemantic web applicatons
  31. 31. Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest
  32. 32. Semantic SearchSemantic Search works showing matching personworks showing matching person works showing locationworks showing location works showing conceptworks showing concept works titledworks titled works created fromworks created from works with matching locationworks with matching location works showing a more specific locationworks showing a more specific location Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest
  33. 33. Semantic searchSemantic search ResearchSpaceResearchSpace – http://www.researchspace.org/online-http://www.researchspace.org/online- researchresearch Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest
  34. 34. Semantic searchSemantic search ResearchSpaceResearchSpace – https://www.youtube.com/watch?https://www.youtube.com/watch? feature=player_embedded&v=HCnwgq6ebfeature=player_embedded&v=HCnwgq6eb AsAs
  35. 35. Site based on linked dataSite based on linked data Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest
  36. 36. How to publish your dataHow to publish your data Convert your data into RDF statementsConvert your data into RDF statements – EDM, CIDOC_CRMEDM, CIDOC_CRM Create external linksCreate external links Load the statements into a triplestoreLoad the statements into a triplestore – Jena, Virtuoso, etc.Jena, Virtuoso, etc. Advertise your dataset inAdvertise your dataset in – http://datahub.io/http://datahub.io/ – Your homepageYour homepage – In email listsIn email lists Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest
  37. 37. Useful informationUseful information Cool URIs for the Semantic WebCool URIs for the Semantic Web – http://www.w3.org/TR/2008/NOTE-cooluris-http://www.w3.org/TR/2008/NOTE-cooluris- 20080331/20080331/ How to Publish Linked Data on the WebHow to Publish Linked Data on the Web – http://www4.wiwiss.fu-http://www4.wiwiss.fu- berlin.de/bizer/pub/LinkedDataTutorial/berlin.de/bizer/pub/LinkedDataTutorial/ Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest
  38. 38. Museum of Fine ArtsMuseum of Fine Arts and semweband semweb The museum has already decided toThe museum has already decided to take part in a project aiming to publishtake part in a project aiming to publish the metatada on the semantic webthe metatada on the semantic web Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest
  39. 39. adam.horvathadam.horvath@@szepmuveszti.huszepmuveszti.hu Thank you for your attentionThank you for your attention

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