the europeana strategy and linked open data
DESCRIPTION
Slides supporting my presentation at NordLOD 2014-10-23. The topic was the Europeana StTRANSCRIPT
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The Europeana Strategy and Linked Open Data
David Haskiya 2014-10-23
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What I’ll present today
• Europeana in brief
• Our strategy for 2015-2020
• How and where Linked Open Data and Linked Open Data technologies are key in realising it
• And of course I’ll try to answer any questions you may have after the presentation!
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Who are we?
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What do we mean by
‘we’?
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We are Europeana
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Jill CousinsExecutive director
CC-BY-SA Europeana
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www.fansshare.com *
Joris PekelCommunity Coordinator
(Runs Open GLAM)
CC-BY-SA Europeana
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*
Julia Fallon (UK)
Policy Officer (and IPR
specialist)
CC-BY-SA Europeana
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... and 45 colleagues in The Hague, London, and
Athens
What we call “The Office”*
**UK version of course, but officially no other comparisons...
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We support a community of 2500+ members who
contribute ideas, effort, data, technology, knowledge and
business opportunities
*
Our proposed governance model
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*
Nick PooleNetwork Officers Chair/CEO Collections Trust
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*
Johan Oomen (NL)Coordinator EU Screen XL/Head R&D Institute of Sound & Vision
CC-BY-SA Europeana
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*
Lizzy JongmaData Manager Rijksmuseum
CC-BY-SA Europeana
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*
Olivier SchulbaumPlatoniq
CC-BY-SA Javier Candeira
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Neelie Kroes, Vice President Emerita European Commission and responsible for the Digital Agenda
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We call this community “The Network”
*
We’re looking for candidate councillors to help govern the Network!!!
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Our services
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Our strategy
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Source: Enumerate
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Product Plug
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PlatformFrom records to graphs
APIs first!
From strings to things
IaaS and SaaS
From metadata to content
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FROM
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TO
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First mention!
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Our 3 audiences
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So, where does linked open data really come in?
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How can can we help data partners create and share LOD?
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Linked Open Data? What is it?
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A data model for Linked Data
● Placeso GeoNames 7.4M
● Conceptso GEMET 8.5Mo Dbpedia 1.2Mo Getty AAT 1M
● Agentso Dbpedia 150k
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Collaborative, soft standardization
→Cross-community development, involving library, archive and museum experts and academic partners
→Data model that re-uses several existing modelsSemantic Web paradigm allows mixing them!
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Open Source inventory on Labs
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Still many R&D efforts - do join in!!!
EuropeanaTechcommunity
In February 2015 we will host a EuropeanaTech conference. Exact
date to be announced.
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Long-term R&D effort example
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How can can we serve this user better? By using LOD?
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Europeana Labs - APIs, tools, docs, data
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Linked-data compatible data re-use channels
→Search APIResults in JSON-LD, RDF/XML
→Semantic markup in the portalSchema.org, OpenGraph
→Linked Open Data prototypesContent negotiation, RDF dumps, SPARQL endpoint, SKOS repository
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Content - digital objects on the site of the provider
Metadata - descriptive object information
Different options
Linked OPEN Data
CC
Europeana and partners provide open metadata
with an increasing proportion of links to Public Domain marked and Creative Commons licensed media
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Case file: Wikidata - Sum of All Paintings
• Wikidata - the crowdsourced linked database of facts• CC0 a hard requirement
• User: Multichill asked himself: How can we get facts about all paintings in the world into Wikidata?• Multichill is good with bots BTW
• I’ll script a bot to fetch metadata about paintings from Europeana! And write it into Wikidata• My US friends can use DPLA
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Check out Crotos!
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How can can we serve this user better? By using LOD?
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LOD to the rescue!
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LOD to the rescue!
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Some use cases helped by linked data
• Being findable in the first place on the major search engines and social platforms
• Cross-language retrieval based on vocabularies• Vocabulary based facets with multilingual facet labels• Autocompletions with semantic disambiguation and
suggestions of related searches• Inclusion of “knowledge cards” in search results• Cross-linked entity pages for concepts, agents, place and
periods• Being findable in the first place on the major search
engines and social platforms
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Subject facet for the WWI-theme, based on localised SKOS-concepts, so they are...
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...multilingual
SKOS terms and labels indexed in SOLR
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● CHO with identifier, resolves to this HTML ‘cause we’re human
● Work with unique identifier, http://dbpedia.org/page/Toccata_and_Fugue_in_D_minor,_BWV_538
● Description from Dbpedia or Freebase, http://dbpedia.org/page/Toccata_and_Fugue_in_D_minor,_BWV_538
● Agent entity, created via semantic enrichment or dereferencing a provided URI, http://dbpedia.org/page/Johann_Sebastian_Bach
● Genre classification, http://dbpedia.org/page/Toccata
● Similar items, by semantic distance
Spot the Linked Open Data!
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Entity pages for concepts, agents, periods and places with links to other objects in Europeana. Near endless browse!
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FIN
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Useful links
→Europeana Labs→EuropeanaTech community →Europeana Data Model documentation →Europeana Twitter @EuropeanaEU→EuropeanaTech Twitter @EuropeanaTech