Semantic Web, Linked Data: the Europeana case(s)


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Presentation at VOGIN-IP-lezing 2014, 20 March 2014,

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  • Les Miserables: Victor Hugo’s handwritten manuscripts:
    BnF, public domain
    Matisse ‘53 in the form of a double helix’ Wellcome Library (CC-BY-NC-ND)
    ‘söprűtánc’ – Hungarian traditional dance
    Hungarian Academy of Sciences Institute for Musicology, public domain
    ‘Neurologico reggae’ Music album
    DISMARC – EuropeanaConnect Paid Access
    ‘Castle of Kavala’ 3D exploration of a Greek castle
    Cultural and Educational Technology Institute - Research Centre Athen CARARE CC-BY-NC-ND
  • All partners send us descriptions of their assets, which we aggregate in a single service
  • Example used is:
    Een vrouw met een kind in een kelderkamer by Pieter de Hooch, Rijksmuseum, public domain
  • View the object at:
  • Dm2e:writer definition at
  • Data is available as ‘data dumps’ for Linked Open Data initiatives from
    Europeana's move to CC0 is a step change in open data access. Releasing data from across the memory organisations of every EU country sets an important new international precedent, a decisive move away from the world of closed and controlled data.
    Note that previews can only be used in accordance with the rights information displayed next to them.
    HISPANA and Partage Plus both use the Europeana API to include Europeana search results on their own websites
  • Semantic Web, Linked Data: the Europeana case(s)

    1. 1. Semantic Web, Linked Data: the Europeana case(s) Antoine Isaac Europeana Vogin-ip-lezing, March 20, 2014
    2. 2., Europe’s cultural heritage portal Text Image Video Sound 3D 30M objects from 2,200 galleries, museums, archives and libraries
    3. 3. A broad, heterogeneous network Audiovisual collections National Aggregators Regional Aggregators Archives Thematic collections Libraries Musées Lausannois Culture.frThe European Library APEX European Film Gateway Europeana Fashion 2,300 galleries, museums, archives and libraries
    4. 4. A distribution channel
    5. 5. What Europeana gets (and makes available) Descriptive metadata Link to digital objects online
    6. 6. Making metadata work better  Creating a new Europeana Data Model
    7. 7. Prior to EDM: flat records dc:contributor, dc:creator, dc:date, dc:format, dc:identifier, dc:language, dc:publisher, dc:relation, dc:source, dcterms:alternative, dcterms:extent, dcterms:temporal, dcterms:medium, dcterms:created, dcterms:provenance, dcterms:issued, dcterms:conformsTo, dcterms:hasFormat, dcterms:isFormatOf, dcterms:hasVersion, dcterms:isVersionOf, dcterms:hasPart, dcterms:isPartOf, dcterms:isReferencedBy, dcterms:references, dcterms:isReplacedBy, dcterms:replaces dcterms:isRequiredBy, dcterms:requires dcterms:tableOfContents europeana:type, europeana:dataProvider, europeana:provider, europeana:isShownAt, europeana:isShownBy, europeana:object, europeana:rights  No links e.g. between objects and context entities (persons, places)  Mixing data on real object and digital content  A lot of mapping quality problems
    8. 8. EDM: an example
    9. 9. More granular metadata
    10. 10. Harvesting thesauri as linked data
    11. 11. Contextual resources – multilingual & semantic linked data for Concepts <skos:Concept rdf:about=""> <skos:prefLabel xml:lang="">Harpsichord</skos:prefLabel> <skos:prefLabel xml:lang="de">Cembalo</skos:prefLabel> <skos:prefLabel xml:lang="sv">Cembalo</skos:prefLabel> <skos:prefLabel xml:lang="fr">Clavecin</skos:prefLabel> <skos:prefLabel xml:lang="it">Clavicembalo</skos:prefLabel> <skos:prefLabel xml:lang="en">Harpsichord</skos:prefLabel> <skos:prefLabel xml:lang="nl">Klavecimbel</skos:prefLabel> <skos:broader> <skos:Concept rdf:about="http://www.mimo-"/> </skos:broader> </skos:Concept>
    12. 12. Contextual Resources – Places
    13. 13. Collaborative, soft standardization  EDM is a cross-community development, involving library, archive and museum experts, plus academic partners  A data model that re-uses several existing Semantic Web-based models
    14. 14. Different semantic grains  Adopts Semantic Web principle of specializing classes and properties  Enables extensions, “applications profiles”, based on needs and best practices from specific sectors or domains
    15. 15. Ready for metadata enrichment  Already re-using third-party sources • GEMET, GeoNames, DBpedia  Enrichment by providers or Europeana • In collaboration! • Example: Getty vocabularies /vocabularies/lod/
    16. 16. Facilitating re-use
    17. 17. Multiple Channels  Search API Results in JSON, JSON-LD, RDF/XML  Semantic mark-up on portal, OpenGraph  Linked Open Data prototype Content negotiation, RDF dumps, SPARQL endpoint
    18. 18. Content - digital objects on the site of the provider Metadata - descriptive object information Different options The legal side of data CC Europeana and partners provide open metadata
    19. 19. Benefiting from existing R&D efforts EuropeanaTech community
    20. 20. Innovation - Searching
    21. 21. Innovation - Annotation Pundit @ DM2E project
    22. 22. Advocating LOD
    23. 23. Conclusions  Big opportunities and challenges for Europeana and its partners  Not implementing the full Semantic Web technical stack at once already bring benefits  Seeing where the general Linked Data vision can change things
    24. 24. Thank you #AllezCulture ! Antoine Isaac @EuropeanaTech
    25. 25. Useful links  Europeana portal  EuropeanaTech community tech  Europeana Data Model documentation  Europeana Twitter @EuropeanaEU  EuropeanaTech Twitter @EuropeanaTech