RDF and Open Linked Data, a first approach
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Transcript of RDF and Open Linked Data, a first approach
RDF and Open Linked Data, a RDF and Open Linked Data, a first approachfirst approach
ADLUG Users Group MeetingADLUG Users Group MeetingTrentoTrento, , 2222--2424 September, 20 September, 201010
Tiziana Possemato, @CTiziana Possemato, @CultultAndrea GazzariniAndrea Gazzarini, @Cult, @Cult
Ádám HorváthÁdám Horváth, , NSZLNSZL
2 RDF and Open Linked Data, a first approach – Tiziana Possemato, Andrea Gazzarini @Cult & Ádám Horváth, NSZL
ContentsContents
Open Linked DataOpen Linked DataThGeniusThGeniusThesaurus management in WeCatThesaurus management in WeCatKeyword search enrichmentKeyword search enrichment
3 RDF and Open Linked Data, a first approach – Tiziana Possemato, Andrea Gazzarini @Cult & Ádám Horváth, NSZL
Chalanges for librariesChalanges for libraries
Les and les people use library Les and les people use library cataloguescatalogues
What could be the answerWhat could be the answer– To bring the catalogue to the surface webTo bring the catalogue to the surface web• To make it searchable by GoogleTo make it searchable by Google
– To provide your data where the user isTo provide your data where the user is• The user must be able to get library data in The user must be able to get library data in
social sitessocial sites• To provide your data on mobile equipmentsTo provide your data on mobile equipments
4 RDF and Open Linked Data, a first approach – Tiziana Possemato, Andrea Gazzarini @Cult & Ádám Horváth, NSZL
Challenges for librariesChallenges for libraries
New potential user: the web and the New potential user: the web and the services on the webservices on the web– Our services must not only be Our services must not only be onon the Web, the Web,
but need to be but need to be ofof the Web the Web– We have to publish our data on the We have to publish our data on the
semantic websemantic web– We can use semantic web technologiesWe can use semantic web technologies
5 RDF and Open Linked Data, a first approach – Tiziana Possemato, Andrea Gazzarini @Cult & Ádám Horváth, NSZL
Some introductory notesSome introductory notes
Semantic web is often called Semantic web is often called – Linked DataLinked Data– Open Linked DataOpen Linked Data– Linked Open Data (LOD)Linked Open Data (LOD)– the web of Linked Open Datathe web of Linked Open Data
6 RDF and Open Linked Data, a first approach – Tiziana Possemato, Andrea Gazzarini @Cult & Ádám Horváth, NSZL
Web and semantic webWeb and semantic web
Web links pagesWeb links pages Semantic web links dataSemantic web links data Web is like a documentWeb is like a document Semantic web is like a databaseSemantic web is like a database– RDF is the data format of the databaseRDF is the data format of the database– This database is independent from any applicationThis database is independent from any application
Web is for human beingsWeb is for human beings Semantic web is for machinesSemantic web is for machines
7 RDF and Open Linked Data, a first approach – Tiziana Possemato, Andrea Gazzarini @Cult & Ádám Horváth, NSZL
Advantage of linked dataAdvantage of linked data
Linked data provides a single, Linked data provides a single, standardised access mechanismstandardised access mechanism– Linked data is a single worldwide APILinked data is a single worldwide API
8 RDF and Open Linked Data, a first approach – Tiziana Possemato, Andrea Gazzarini @Cult & Ádám Horváth, NSZL
Advantage of semantic web Advantage of semantic web technologiestechnologies
Certain tasks can be carried out easier Certain tasks can be carried out easier with semantic web technologieswith semantic web technologies– RDF database + SPARQL = very powerful RDF database + SPARQL = very powerful
search capabilitiessearch capabilities
9 RDF and Open Linked Data, a first approach – Tiziana Possemato, Andrea Gazzarini @Cult & Ádám Horváth, NSZL
Linked data from library perspectiveLinked data from library perspective
Libraries can share data in a non library Libraries can share data in a non library centric waycentric way
Libraries can share their data in a web Libraries can share their data in a web friendly wayfriendly way
Library’s data can be meaningful in a Library’s data can be meaningful in a new contextnew context
10 RDF and Open Linked Data, a first approach – Tiziana Possemato, Andrea Gazzarini @Cult & Ádám Horváth, NSZL
The role of libraries in building the The role of libraries in building the semantic websemantic web
The libraries have to publish their data The libraries have to publish their data on the semantic webon the semantic web
Software developers have to develop Software developers have to develop applications that use the (published) applications that use the (published) semantic datasemantic data
Libraries can use semantic web Libraries can use semantic web technologies, applications to solve technologies, applications to solve certain tasks more efficientlycertain tasks more efficiently
Library vendors can help on both sitesLibrary vendors can help on both sites
11 RDF and Open Linked Data, a first approach – Tiziana Possemato, Andrea Gazzarini @Cult & Ádám Horváth, NSZL
Libraries publishing linked dataLibraries publishing linked data
Entire libraryEntire library– LIBRISLIBRIS– National Széchényi Library (NSZL)National Széchényi Library (NSZL)
12 RDF and Open Linked Data, a first approach – Tiziana Possemato, Andrea Gazzarini @Cult & Ádám Horváth, NSZL
Libraries publishing linked dataLibraries publishing linked data
Authority filesAuthority files– Library of CongressLibrary of Congress• Subject Headings in SKOS formatSubject Headings in SKOS format
– Deutsche NationalbibliothekDeutsche Nationalbibliothek• Name authority and subject heading authority Name authority and subject heading authority
in its on formatin its on format
– VIAF (Virtual International Authority File)VIAF (Virtual International Authority File)• MARC based but also publishes data in FOAF MARC based but also publishes data in FOAF
formatformat• NSZL is also participating in VIAFNSZL is also participating in VIAF
13 RDF and Open Linked Data, a first approach – Tiziana Possemato, Andrea Gazzarini @Cult & Ádám Horváth, NSZL
Libraries within W3CLibraries within W3C
W3C Library Linked Data Incubator GroupW3C Library Linked Data Incubator Group– http://www.w3.org/2005/Incubator/lld/http://www.w3.org/2005/Incubator/lld/– ChairsChairs• Tom BakerTom Baker• Emmanuelle BermesEmmanuelle Bermes• Antoine IsaacAntoine Isaac
14 RDF and Open Linked Data, a first approach – Tiziana Possemato, Andrea Gazzarini @Cult & Ádám Horváth, NSZL
Semantic web applicationSemantic web applicationss
Semantic searchSemantic search
15 RDF and Open Linked Data, a first approach – Tiziana Possemato, Andrea Gazzarini @Cult & Ádám Horváth, NSZL
Semantic web applicatonsSemantic web applicatons
17 RDF and Open Linked Data, a first approach – Tiziana Possemato, Andrea Gazzarini @Cult & Ádám Horváth, NSZL
Semantic web applicationsSemantic web applications
works showing matching personworks showing matching personworks showing locationworks showing locationworks showing conceptworks showing conceptworks titledworks titledworks created fromworks created fromworks with matching locationworks with matching locationworks showing a more specific locationworks showing a more specific location
18 RDF and Open Linked Data, a first approach – Tiziana Possemato, Andrea Gazzarini @Cult & Ádám Horváth, NSZL
VocabulariesVocabularies
Dublin Core (Dublin Core (DCDC) defines general metadata ) defines general metadata attributes. See also their new domains and ranges attributes. See also their new domains and ranges draft.draft.
Friend-of-a-Friend (Friend-of-a-Friend (FOAFFOAF), vocabulary for ), vocabulary for describing people.describing people.
Simple Knowledge Organization System (Simple Knowledge Organization System (SKOSSKOS), ), vocabulary for representing taxonomies and vocabulary for representing taxonomies and loosely structured knowledge.loosely structured knowledge.
Bibliographic Ontology (Bibliographic Ontology (BIBOBIBO)) Expression of Core FRBR Concepts in RDFExpression of Core FRBR Concepts in RDF
19 RDF and Open Linked Data, a first approach – Tiziana Possemato, Andrea Gazzarini @Cult & Ádám Horváth, NSZL
Linked data in ADLUG’sLinked data in ADLUG’s
2008 Venice: First steps towards 2008 Venice: First steps towards publishing library data on the semantic publishing library data on the semantic webweb
2009 Bilbao: Semantic web tutorial2009 Bilbao: Semantic web tutorial2009 Bilbao: Using Cool URI’s as 2009 Bilbao: Using Cool URI’s as
permalinkpermalinkADLUG is a leader of spreading the idea ADLUG is a leader of spreading the idea
of semantic web in librariesof semantic web in libraries
[email protected]@oszk.hu
Thank you for your attentionThank you for your attention