Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.
First steps towards publishingFirst steps towards publishing
library data on thelibrary data on the ssemanticemantic wwebe...
2 First steps towards publishing library data on the
What is semantic webWhat is semantic web
Statements that can be conn...
3 First steps towards publishing library data on the
What is semantic webWhat is semantic web
Examples of statementsExamp...
4 First steps towards publishing library data on the
What is semantic webWhat is semantic web
Why semantic web is good fo...
5 First steps towards publishing library data on the
What is semantic webWhat is semantic web
Formulating the statementsF...
6 First steps towards publishing library data on the
RDF triplesRDF triples
<http://nektar.oszk.hu/bib/8365566> dc:creator...
7 First steps towards publishing library data on the
RDF XMLRDF XML
8 First steps towards publishing library data on the
What is semantic webWhat is semantic web
Storing the statementsStori...
9 First steps towards publishing library data on the
What is semantic webWhat is semantic web
Surfing the semantic webSur...
10 First steps towards publishing library data on the
NSZL would like to be part of theNSZL would like to be part of the
s...
11 First steps towards publishing library data on the
Linked Data - four rulesLinked Data - four rules
Use URIs as names ...
12 First steps towards publishing library data on the
HTTP URIsHTTP URIs
Every bibliographic and authority record inEvery...
13 First steps towards publishing library data on the
Useful informationUseful information
Example record in the OPAC of ...
16 First steps towards publishing library data on the
Useful informationUseful information
Content negotiationContent nego...
17 First steps towards publishing library data on the
Publishing the MARC record on thePublishing the MARC record on the
s...
18 First steps towards publishing library data on the
Publishing the MARC record on thePublishing the MARC record on the
s...
19 First steps towards publishing library data on the
ExampleExampless in an RDF browserin an RDF browser
22 First steps towards publishing library data on the
Links to other URIsLinks to other URIs
24 First steps towards publishing library data on the
Authority recordsAuthority records
RDF formatRDF format
– Simple Kn...
25 First steps towards publishing library data on the
SKOS exampleSKOS example
<rdf:RDF xmlns:rdf="http://www.w3.org/1999/...
26 First steps towards publishing library data on the
Building blocksBuilding blocks
CoolUriCoolUri
RDFDCRDFDC
SKOSSKOS...
First steps towards publishing library data on the semantic web
First steps towards publishing library data on the semantic web
First steps towards publishing library data on the semantic web
First steps towards publishing library data on the semantic web
First steps towards publishing library data on the semantic web
Upcoming SlideShare
Loading in …5
×

First steps towards publishing library data on the semantic web

203 views

Published on

First steps towards publishing library data on the semantic web. Implementing:
CoolUri
RDFDC
SKOS
RDF database and SPARQL interface
Content negotiation

Published in: Technology
  • Be the first to comment

  • Be the first to like this

First steps towards publishing library data on the semantic web

  1. 1. First steps towards publishingFirst steps towards publishing library data on thelibrary data on the ssemanticemantic wwebeb ADLUG Users Group MeetingADLUG Users Group Meeting Venice, 29-31 October, 2008Venice, 29-31 October, 2008 ÁdámÁdám HorváthHorváth NSZLNSZL
  2. 2. 2 First steps towards publishing library data on the What is semantic webWhat is semantic web Statements that can be connected byStatements that can be connected by machinesmachines The machines can make logical operationsThe machines can make logical operations on the statementon the statementss The statements always have three partsThe statements always have three parts – Subject, predicate, objectSubject, predicate, object The subjects are identified by URIsThe subjects are identified by URIs – Rdf:about=„http://example1.com/VanGogh”Rdf:about=„http://example1.com/VanGogh”
  3. 3. 3 First steps towards publishing library data on the What is semantic webWhat is semantic web Examples of statementsExamples of statements – Van Gogh is an impressionist painterVan Gogh is an impressionist painter • This statement was published byThis statement was published by WikipediaWikipedia – The Sunflower was created by Van GoghThe Sunflower was created by Van Gogh • This statement was published byThis statement was published by a museuma museum
  4. 4. 4 First steps towards publishing library data on the What is semantic webWhat is semantic web Why semantic web is good for us?Why semantic web is good for us? – A user searches for impressionist paintingsA user searches for impressionist paintings – The userThe user will find Sunflower although thewill find Sunflower although the museum has never stated that Van Gogh is anmuseum has never stated that Van Gogh is an impressionist painterimpressionist painter
  5. 5. 5 First steps towards publishing library data on the What is semantic webWhat is semantic web Formulating the statementsFormulating the statements – Resource Description Framework (RDF)Resource Description Framework (RDF) defines how to make a statementdefines how to make a statement – Statements are also called RDF statementsStatements are also called RDF statements – RDF is still a high level definitionRDF is still a high level definition – The RDF statements can appear as XMLThe RDF statements can appear as XML statement, as triples, …statement, as triples, …
  6. 6. 6 First steps towards publishing library data on the RDF triplesRDF triples <http://nektar.oszk.hu/bib/8365566> dc:creator "Berneryd, Jan, 1966-„<http://nektar.oszk.hu/bib/8365566> dc:creator "Berneryd, Jan, 1966-„ <http://nektar.oszk.hu/bib/8365566> dc:creator "Sturmark, Christer, 1964-" .<http://nektar.oszk.hu/bib/8365566> dc:creator "Sturmark, Christer, 1964-" . <http://nektar.oszk.hu/bib/8365566> dc:type<http://nektar.oszk.hu/bib/8365566> dc:type "text" ."text" . <http://nektar.oszk.hu/bib/8365566> dc:publisher "Stockholm ; Helsingfors : Pagina," .<http://nektar.oszk.hu/bib/8365566> dc:publisher "Stockholm ; Helsingfors : Pagina," . <http://nektar.oszk.hu/bib/8365566> dc:date<http://nektar.oszk.hu/bib/8365566> dc:date "1994 ;" ."1994 ;" .
  7. 7. 7 First steps towards publishing library data on the RDF XMLRDF XML
  8. 8. 8 First steps towards publishing library data on the What is semantic webWhat is semantic web Storing the statementsStoring the statements – In RDF databases (e.g. Jena)In RDF databases (e.g. Jena) Querying the databaseQuerying the database – LanguageLanguage • SPARQL (W3C standard)SPARQL (W3C standard) Publishing the statementsPublishing the statements – Endpoint: understands SPARQL andEndpoint: understands SPARQL and translatetranslatess it to the internal search language ofit to the internal search language of the RDF database (e.g. Joseki)the RDF database (e.g. Joseki)
  9. 9. 9 First steps towards publishing library data on the What is semantic webWhat is semantic web Surfing the semantic webSurfing the semantic web – MachinesMachines – Humans by the means of RDFHumans by the means of RDF bbrowsersrowsers
  10. 10. 10 First steps towards publishing library data on the NSZL would like to be part of theNSZL would like to be part of the semantic websemantic web Follow the rules of Linked Data, as definedFollow the rules of Linked Data, as defined by Tim Berners-Lee inby Tim Berners-Lee in Linked Data - Design Issues, 2006Linked Data - Design Issues, 2006 Implement access to RDF data throughImplement access to RDF data through HTTP content negotiationHTTP content negotiation
  11. 11. 11 First steps towards publishing library data on the Linked Data - four rulesLinked Data - four rules Use URIs as names for thingsUse URIs as names for things – Info:uri:painter:VanGoghInfo:uri:painter:VanGogh Use HTTP URIs so that people can look upUse HTTP URIs so that people can look up those namesthose names – http://example1.com/VanGoghhttp://example1.com/VanGogh When someone looks up a name, provideWhen someone looks up a name, provide useful informationuseful information Include links to other URIs so that they canInclude links to other URIs so that they can discover more thingsdiscover more things
  12. 12. 12 First steps towards publishing library data on the HTTP URIsHTTP URIs Every bibliographic and authority record inEvery bibliographic and authority record in LibriVision will get assigned a HTTP URI, aLibriVision will get assigned a HTTP URI, a CoolUriCoolUri – http://nektar.oszk.hu/bib/XYZhttp://nektar.oszk.hu/bib/XYZ – http://nektar.oszk.hu/auth/ABChttp://nektar.oszk.hu/auth/ABC Every bibliographic record in our CMSEvery bibliographic record in our CMS (called OSZKDK) has already have a(called OSZKDK) has already have a CoolUriCoolUri – http://oszkdk.oszk.hu/DRJ/404http://oszkdk.oszk.hu/DRJ/404
  13. 13. 13 First steps towards publishing library data on the Useful informationUseful information Example record in the OPAC of OSZKDKExample record in the OPAC of OSZKDK
  14. 14. 16 First steps towards publishing library data on the Useful informationUseful information Content negotiationContent negotiation:: http://oszkdk.oszk.hu/DRJ/404http://oszkdk.oszk.hu/DRJ/404 GET /DRJ/404GET /DRJ/404 Host: oszkdk.oszk.huHost: oszkdk.oszk.hu Accept: text/htmlAccept: text/html
  15. 15. 17 First steps towards publishing library data on the Publishing the MARC record on thePublishing the MARC record on the semantic websemantic web The MARC record has to be translated intoThe MARC record has to be translated into semantic web statementssemantic web statements Namely into RDF Dublin Core (RDFDC)Namely into RDF Dublin Core (RDFDC) statementsstatements – RDFDC is defined by DCMIRDFDC is defined by DCMI RDFDC has toRDFDC has to bebe stored in a RDF databasestored in a RDF database (e.g. Jena/Joseki)(e.g. Jena/Joseki) Content negotiation has to be set upContent negotiation has to be set up
  16. 16. 18 First steps towards publishing library data on the Publishing the MARC record on thePublishing the MARC record on the semantic websemantic web Content negotiation:Content negotiation: http://oszkdk.oszk.hu/DRJ/404http://oszkdk.oszk.hu/DRJ/404 GET /DRJ/404GET /DRJ/404 Host: oszkdk.oszk.huHost: oszkdk.oszk.hu Accept: application/rdf+xmlAccept: application/rdf+xml
  17. 17. 19 First steps towards publishing library data on the ExampleExampless in an RDF browserin an RDF browser
  18. 18. 22 First steps towards publishing library data on the Links to other URIsLinks to other URIs
  19. 19. 24 First steps towards publishing library data on the Authority recordsAuthority records RDF formatRDF format – Simple Knowledge Organization SystemSimple Knowledge Organization System (SKOS)(SKOS) NSZL has already converted the followingsNSZL has already converted the followings into this formatinto this format – Name authorityName authority – Geographical names thesaurusGeographical names thesaurus – Subject term thesaurusSubject term thesaurus
  20. 20. 25 First steps towards publishing library data on the SKOS exampleSKOS example <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:skos="http://www.w3.org/2004/02/skos/core#"xmlns:skos="http://www.w3.org/2004/02/skos/core#" <skos:Concept rdf:about="http://dev.oszkdk.oszk.hu/auth/1705"><skos:Concept rdf:about="http://dev.oszkdk.oszk.hu/auth/1705"> <skos:inScheme<skos:inScheme rdf:resource="http://www.oszk.hu/authority/person"></skos:inScherdf:resource="http://www.oszk.hu/authority/person"></skos:inSche me>me> <skos:prefLabel>Jókai Mór</skos:prefLabel><skos:prefLabel>Jókai Mór</skos:prefLabel> <skos:altLabel>Jókai Maurus</skos:altLabel><skos:altLabel>Jókai Maurus</skos:altLabel> <skos:altLabel>Jokajus, Moras</skos:altLabel><skos:altLabel>Jokajus, Moras</skos:altLabel> <skos:altLabel>Sajó</skos:altLabel><skos:altLabel>Sajó</skos:altLabel> </skos:Concept></skos:Concept> </rdf:RDF></rdf:RDF>
  21. 21. 26 First steps towards publishing library data on the Building blocksBuilding blocks CoolUriCoolUri RDFDCRDFDC SKOSSKOS RDF database and SPARQL interfaceRDF database and SPARQL interface Content negotiationContent negotiation

×