Session 3: Vocabulary enrichment, Gerda Koch


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LoCloud Content Provider workshops Aug-Sept 2013

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Session 3: Vocabulary enrichment, Gerda Koch

  1. 1. local content in a Europeana cloud Session 3: Vocabulary enrichment Gerda Koch, AIT Angewandte Informationstechnik Forschungsgesellschaft mbH LoCloud is funded by the European Commission's ICT Policy Support Programme
  2. 2. WP3: Micro services for small and medium institutions • establishing a cloud-based collaborative testing environment for tools and services • developing cloud-based SaaS services (Software as a Service) and applications suitable for use by small and medium institutions • providing the basis for a continuing process of participative testing and validation of each of the services and applications Introduction
  3. 3. WP3: Service framework • Geolocation enrichment • Metadata enrichment • Vocabularies and languages • Historic place names • Wikimedia applications Introduction
  4. 4. This presentation will provide you: A brief introduction to … 1. Web Services 2. Vocabulary Standards used by Task 3.4 3. Vocabulary Management Tool (Sample) Contents
  5. 5. What is a Web Service? A web service is a software function provided at a network address over the web or the cloud (24/7) • are application components • communicate using open protocols • are self-contained and self-describing • can be used by other applications • XML is the basis for Web services 1 Web Services
  6. 6. Query a Web Service offered online Results: Rivers in Germany TGN – Getty Thesaurus of Geographic Names Query Result 1 Web Services
  7. 7. Xataface: editing a record Integrate a Web Service in a local application Which Descriptors should I use? 1 Web Services
  8. 8. Integrate a Web Service in a local application The vocabulary webservice is directly addressed within the entry field of the application. The user chooses the vocabulary terms that are taken over into the application. (auto-suggest) Results: Music Genres DISMARC Genres Vocabulary 1 Web Services
  9. 9. Task 3.4: Vocabularies and languages • Experimental application to enable local cultural institutions to collaborate in the development of multilingual vocabularies for local history and archaeology 2 Vocabularies
  10. 10. The application will be based on: ISO 25964: standard for building thesauri • Part 1: Thesauri for information retrieval - published in 2011 - developing a thesaurus (mono- and multilingual) - replaced previous standards ISO 2788/5964 - includes data model and XML schema • Part 2: Interoperability with other vocabularies - published in 2013 - recommendations for the establishment and maintenance of mappings between multiple thesauri, or between thesauri and other types of vocabularies 2 Vocabularies
  11. 11. The application will use SKOS as exchange format: SKOS Simple Knowledge Organisation System • is a W3C recommendation designed for representation of controlled vocabularies • main objective is to enable easy publication and use of such vocabularies as linked data 2 Vocabularies
  12. 12. How this two relate… • The SKOS metamodel is broadly compatible with the data model of ISO 25964-1 - Thesauri for Information Retrieval. • ISO 25964-1 advises on the selection and fitting together of concepts, terms and relationships to make a good thesaurus • SKOS addresses the next step - porting the thesaurus to the Web. 2 Vocabularies
  13. 13. Using SKOS, concepts can be identified using URIs, labeled with lexical strings in one or more natural languages… The SKOS Core Vocabulary is an application of the Resource Description Framework (RDF), that can be used to express a concept scheme as an RDF graph. Using RDF allows data to be linked to and/or merged with other data, enabling data sources to be distributed across the web, but still be meaningfully composed and integrated. 2 Vocabularies
  14. 14. Vocabulary examples (SKOS Format) • DDC Dewey Decimal Classification • Library of Congress’ vocabularies • VIAF person authorities • UKAT UK Archival Thesaurus • UNESCO Thesaurus • ….. Example…. 2 Vocabularies
  15. 15. C00213 URI C00206 URI C00207 URI skos:prefLabel skos:prefLabel skos:narrowerskos:related skos:prefLabel skos:prefLabel Archaeology Arqueología Archaeological dating Archaeological excavations Object Predicate Subject XML Graph
  16. 16. Using a vocabulary for classification Semantic Net presentation Graph presentation (Topic Map) Tree presentation Object Predicate Subject 2 Vocabularies
  17. 17. Usage of SKOS within the Europeana Data Model (EDM) Contextual Classes (EDM)ObjectPredicate Subject 2 Vocabularies
  18. 18. Provided Cultural Heritage Object (EDM) Object Predicate Subject 2 Vocabularies
  19. 19. Vocabulary management tool examples Import and Export thesauri ThManager 2.0 developed by the University of Zaragoza UNESCO Thesaurus 3 Voc. Tool
  20. 20. Vocabulary management tool examples View and browse thesauri List view Tree view Search terms 3 Voc. Tool
  21. 21. Vocabulary management tool examples Edit thesauri 3 Voc. Tool
  22. 22. Vocabulary Management – Business Process/Workflow The process of editing and managing a vocabulary involves the communication between different persons and the technical system: Eg. Finding a term, Requesting a candidate term, Accepting the new term, Updating the vocabulary etc. User uses web service for finding a vocabulary term Term exists in the vocabulary SaaS Crowdsourcing Term does not exist in the vocabulary Use crowdsourcing for finding a new candidate term 3 Voc. Tool
  23. 23. Outcomes of Copenhagen - WS1 Access to the vocabulary: • Online access point (see TGN example) • Integration into local application (see Genre example) Import of existing vocabularies into the LoCloud experimental vocabulary application (pre-requisite: skosified, multilingual, open access) • Subject vocabularies • Object Types • Geographic Names • Suggested vocabularies: UNESCO Thesaurus, UKAT ( ? UK)
  24. 24. Outcomes of Copenhagen General usage of the tool • Everybody allowed to enter new terms vs. Suggest candidate terms • Multilinguality: language translations assigned to partners Other wishes? • Crowdsourcing? • Automated Vocabulary enrichment
  25. 25. Thank you
  26. 26. LoCloud is funded by the European Commission's ICT Policy Support Programme The views and opinions expressed in this presentation are the sole responsibility of the authors and do not necessarily reflect the views of the European Commission. Funding