Presentation at ISKO-UK meeting on Making Metadata work http://www.iskouk.org/events/metadata_June_2014_pm.htm

1. Europeana as a Linked Open Data case
(in progress)
Antoine Isaac
ISKO UK Seminar “Making Metadata Work”
London, June 23, 2014

2. Europe’s platform to access cultural heritage
Currently
33M objects

3. Built on descriptive metadata
from 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. What Europeana gets (and makes available)
Descriptive
metadata
Link to digital
objects online

5. A distribution channel

6. Linked Open Data?
http://vimeo.com/36752317

7. Realizing Linked Data bits by bits
Incremental progress on Europeana’s various facets
 Data ingestion
 Data enrichment
 Front-end services: search, display
 Data publication

8. Making metadata work better
 Creating a new Europeana Data Model: EDM
http://pro.europeana.eu/edm-documentation

9. Prior to EDM: flat metadata 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 between objects and persons, places…
 Mixing data on real object and digital content
 Causing a lot of mapping quality problems

10. EDM: an example
http://europeana.eu/portal/record/09102/_CM_0161930.html

11. More granular metadata

12. Contextual Resources – Places

13. Collaborative, soft standardization
 Cross-community development, involving library,
archive and museum experts and academic partners
 Data model that re-uses several existing models
Semantic Web paradigm just allows mixing them!

14. (Future work:)
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. Ready for metadata enrichment
 Europeana links objects to third-party sources
• GEMET, GeoNames, DBpedia
 Europeana providers send richer metadata

16. Harvesting thesauri as linked data

17. Contextual resources – multilingual &
semantic linked data for Concepts
<skos:Concept rdf:about="http://www.mimo-db.eu/InstrumentsKeywords/2251">
<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-
db.eu/InstrumentsKeywords/2239"/>
</skos:broader>
</skos:Concept>

18. Contextual resource benefits - Work in
progress
 Allows to present users with richer context
 Boosts multilingual search
 And multilingual display

19. Linked-data compatible data re-use channels
 Search API
Results in JSON, JSON-LD, RDF/XML
 Semantic mark-up on portal
schema.org, OpenGraph
 Linked Open Data prototype
Content negotiation, RDF dumps, SPARQL endpoint

20. 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

21. Technological advocacy hand in hand
with legal advocacy
http://vimeo.com/36752317

22. <slight digression>

23. On practical aspects of
enhancing semantic
interoperability using SKOS
and KOS alignment
Antoine ISAAC
KRR lab, Vrije Universiteit Amsterdam
National Library of the Netherlands
ISKO UK Meeting, July 21 2008, London

24. Enhancing semantic interoperability using SKOS
Conclusion
• Representing KOSs using SKOS
• Main features
• Practical issues
• Demo
• SKOS and semantic alignment of KOSs
Despite some issues, SKOS provides a crucial
contribution to enhance interoperability of KOSs

25. SKOS and Linked Data
Antoine Isaac
ISKO, London, Sept. 14th
2010

26. Conclusion
Publication and linking of linked KOS data is still work in
progress, but
• We are now in position of realizing the issues and
working towards solving them
• We can start building applications that make use of
the wealth of data already available or yet to come
Many KO resources to re-use and link to

27. Now: Getty Art and Architecture Thesaurus
in SKOS Linked Open Data!
http://www.getty.edu/research/tools/vocabularies/lod/

28. Now: Getty AAT in Europeana
http://europeana.eu/portal/record/2023004/24062A23_priref_229.html

29. Now: Getty AAT in Europeana
http://europeana.eu/portal/record/2023004/24062A23_priref_229.html

30. </slight digression>

31. Still many R&D efforts
EuropeanaTech
community
pro.europeana.eu/europeana-tech

32. Innovation - Searching
http://eculture.cs.vu.nl/europeana/

33. Innovation - Annotation
Pundit @ DM2E project http://dm2e.eu

34. Conclusions
 Linked data presents big opportunities and challenges
for Europeana and its partners
 Not implementing the full technical stack at once
already bring benefits

35. Thank you
#AllezCulture !
Antoine Isaac
antoine.isaac@europeana.eu
@EuropeanaTech

36. Useful links
 Europeana portal europeana.eu
 EuropeanaTech community pro.europeana.eu/europeana-
tech
 Europeana Data Model documentation
pro.europeana.eu/edm-documentation
 Europeana Twitter @EuropeanaEU
 EuropeanaTech Twitter @EuropeanaTech