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Linked Open Data Horváth Ádám Museum of Fine Arts, Budapest Múzeumi Digitalizálási Konferencia Múzeumi Digitalizálási Konferencia.

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Presentation on theme: "Linked Open Data Horváth Ádám Museum of Fine Arts, Budapest Múzeumi Digitalizálási Konferencia Múzeumi Digitalizálási Konferencia."— Presentation transcript:

1 Linked Open Data Horváth Ádám Museum of Fine Arts, Budapest Múzeumi Digitalizálási Konferencia Múzeumi Digitalizálási Konferencia Budapest, június 10–11. Budapest, június 10–11.

2 Terminology Linked Open Data (LOD) Linked Open Data (LOD) Semantic web (semweb) Semantic web (semweb) Open Linked Data Open Linked Data The web of Linked Open Data The web of Linked Open Data Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest

3 Contents Semantic web basics Semantic web basics Web and semantic web Web and semantic web Advantages of linked data Advantages of linked data Cultural institutions on the semantic web Cultural institutions on the semantic web Semantic data examples Semantic data examples Semantic search Semantic search How to publish your data How to publish your data Museum of Fine Arts and the semweb Museum of Fine Arts and the semweb

4 Semantic web basics Set of linked RDF statements Set of linked RDF statements RDF RDF –Resource Description Framework Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest

5 Semantic web basics RDF statement RDF statement –Abstract example Decameron’sauthor isBoccaccioDecameron’sauthor isBoccaccio SubjectPredicateObjectSubjectPredicateObject Rules of RDF statement Rules of RDF statement –Subject, predicate must be URI –Object can be URI or literal Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest

6 Semantic web basics Concrete example (RDF/XML) Concrete example (RDF/XML) –Subject Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest

7 Semantic web basics Concrete example (RDF/XML) Concrete example (RDF/XML) –Predicate Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest

8 Semantic web basics Concrete example (RDF/XML) Concrete example (RDF/XML) –Object –This URI identifies Boccaccio Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest

9 Semantic web basics Concrete example (RDF/XML) Concrete example (RDF/XML) –Subject, predicate, object (full URI) Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest

10 Semantic web basics Concrete example (RDF/XML) Concrete example (RDF/XML) –Subject, predicate, object (abbreviated URI) -> dcterms:creatorhttp://purl.org/dc/terms/creator -> dcterms:creator Boccaccio, Giovanni ( ) Boccaccio, Giovanni ( ) Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest

11 Semantic web basics Predicates of the previous pages Predicates of the previous pages –bibo:Document –dcterms:creator –dc:creator Prefixes represent element sets Prefixes represent element sets –CRM Strings after the colon are the properties of the element set Strings after the colon are the properties of the element set Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest

12 Semantic web basics Statements can be linked together easily Statements can be linked together easily –The object of a statement can be the subject of another Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest

13 Web and the semantic web The web links pages The web links pages The semantic web links data The semantic web links data The web is similar to a document The web is similar to a document The semantic web is similar to a database The semantic web is similar to a database –RDF is the format of the database –This database is independent from any application The web was created for humans The web was created for humans The semantic web was created for machines The semantic web was created for machines Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest

14 Advantages of linked data The linked data can provide a uniform access mechanism The linked data can provide a uniform access mechanism –The linked data can be considered as a worldwide API Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest

15 Advantages of linked data technology There are problems that can be solved more easily with using semantic web technology There are problems that can be solved more easily with using semantic web technology –National Széchényi Library uses triplestore and SPARQL to retrieve all editions of a certain work –Oracle uses PROV to track changes over time for metadata from heterogeneous systems Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest

16 Semantic web and the cultural institutions The data of cultural institutions can be shared by the means of a generally used tool The data of cultural institutions can be shared by the means of a generally used tool The cultural data can have a new meaning in this environment The cultural data can have a new meaning in this environment The data of cultural institutions can be transferred into RDF statements relatively easy The data of cultural institutions can be transferred into RDF statements relatively easy Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest

17 The semweb and the cultural institutions The main role is to publish the data The main role is to publish the data –Crating semantic web applications is the task of software developers Cultural institutions can use semantic web technologies Cultural institutions can use semantic web technologies Cultural institutions can use semantic web to enrich their own data Cultural institutions can use semantic web to enrich their own data Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest

18 Libraries on the semantic web The full library contents The full library contents –LIBRIS (Union Catalogue of Sweden) –National Széchényi Library Bibliographical data Bibliographical data –British Library –Deutsche National Bibliothek –Biblioteca Nacional de España Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest

19 Museums on the semantic web Yale Centre of British Art Yale Centre of British Art –Full collection –Also supporter of open data (and pictures) –TMS user Smithsonian American Art Museum Smithsonian American Art Museum –Full collection –Links to Dbpedia, ULAN –TMS user Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest

20 Museums on the semantic web MuseumFinland MuseumFinland Amsterdam Museum Amsterdam Museum LODAC Museum (Japan): 114 museum LODAC Museum (Japan): 114 museum Italian Museums Italian Museums –http://www.linkedopendata.it/datasets/musei British Museum British Museum –Online Collection –http://collection.britishmuseum.org/ Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest

21 Europeana on the semantic web Europeana Data Model (EDM) Europeana Data Model (EDM) –First implementation: Europeana Linked Data Pilot data.europeana.eudata.europeana.eudata.europeana.eu –Technical description Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest

22 Semantic data examples Yale Centre of British Art Yale Centre of British Art –Via a link on an HTML page –http://collections.britishart.yale.edu/vufind/ Record/ Record/ http://collections.britishart.yale.edu/vufind/ Record/ Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest

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28 How to see semantic data Yale Centre of British Art Yale Centre of British Art –Via a link on an HTML page ord/ http://collections.britishart.yale.edu/vufind/Rec ord/ http://collections.britishart.yale.edu/vufind/Rec ord/ http://collections.britishart.yale.edu/vufind/Rec ord/ –Via SPARQL endpoint Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest

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31 Semantic web browsers Disco Disco DotAc DotAc Elda Elda Marbles Marbles OpenLinkDataExplorer OpenLinkDataExplorer Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest Ripple Ripple SIOC Browser SIOC Browser Sig.ma Sig.ma Tabulator Tabulator Zitgist Zitgist Source:

32 Semantic web browers OpenLink Data Explorer Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest

33 Semantic web browers OpenLink Data Explorer OpenLink Data Explorer Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest

34 Semantic web browers OpenLink Data Explorer OpenLink Data Explorer Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest

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36 Semantic search Europeanna Connect Europeanna Connect –WP1 Creating the Europeana Semantic Layer Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest

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38 Semantic web applicatons

39 Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest

40 Semantic Search works showing matching person works showing matching person works showing location works showing location works showing concept works showing concept works titled works titled works created from works created from works with matching location works with matching location works showing a more specific location works showing a more specific location Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest

41 Semantic search ResearchSpace ResearchSpace –http://www.researchspace.org/online- research researchhttp://www.researchspace.org/online- research Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest

42 Semantic search ResearchSpace ResearchSpace –https://www.youtube.com/watch?feature=p layer_embedded&v=HCnwgq6ebAs https://www.youtube.com/watch?feature=p layer_embedded&v=HCnwgq6ebAshttps://www.youtube.com/watch?feature=p layer_embedded&v=HCnwgq6ebAs

43 Site based on linked data Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest

44 How to publish your data Convert your data into RDF statements Convert your data into RDF statements –EDM, CIDOC_CRM Create external links Create external links Load the statements into a triplestore Load the statements into a triplestore –Jena, Virtuoso, etc. Advertise your dataset in Advertise your dataset in –http://datahub.io/ –Your homepage –In lists Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest

45 Useful information Cool URIs for the Semantic Web Cool URIs for the Semantic Web –http://www.w3.org/TR/2008/NOTE-cooluris / /http://www.w3.org/TR/2008/NOTE-cooluris / How to Publish Linked Data on the Web How to Publish Linked Data on the Web –http://www4.wiwiss.fu- berlin.de/bizer/pub/LinkedDataTutorial/ berlin.de/bizer/pub/LinkedDataTutorial/http://www4.wiwiss.fu- berlin.de/bizer/pub/LinkedDataTutorial/ Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest

46 Museum of Fine Arts and semweb The museum has already decided to take part in a project aiming to publish the metatada on the semantic web The museum has already decided to take part in a project aiming to publish the metatada on the semantic web Linked Open Data – Ádám Horváth - Museum of Fine Arts, Budapest

47 Thank you for your attention


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