Date post: | 26-Jun-2015 |
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The Europeana Strategy and Linked Open Data
David Haskiya 2014-10-23
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!
Who are we?
What do we mean by
‘we’?
We are Europeana
Jill CousinsExecutive director
CC-BY-SA Europeana
www.fansshare.com *
Joris PekelCommunity Coordinator
(Runs Open GLAM)
CC-BY-SA Europeana
*
Julia Fallon (UK)
Policy Officer (and IPR
specialist)
CC-BY-SA Europeana
... and 45 colleagues in The Hague, London, and
Athens
What we call “The Office”*
**UK version of course, but officially no other comparisons...
We support a community of 2500+ members who
contribute ideas, effort, data, technology, knowledge and
business opportunities
*
Our proposed governance model
*
Nick PooleNetwork Officers Chair/CEO Collections Trust
*
Johan Oomen (NL)Coordinator EU Screen XL/Head R&D Institute of Sound & Vision
CC-BY-SA Europeana
*
Lizzy JongmaData Manager Rijksmuseum
CC-BY-SA Europeana
*
Olivier SchulbaumPlatoniq
CC-BY-SA Javier Candeira
Neelie Kroes, Vice President Emerita European Commission and responsible for the Digital Agenda
We call this community “The Network”
*
We’re looking for candidate councillors to help govern the Network!!!
Our services
Our strategy
Source: Enumerate
Product Plug
PlatformFrom records to graphs
APIs first!
From strings to things
IaaS and SaaS
From metadata to content
FROM
TO
First mention!
Our 3 audiences
So, where does linked open data really come in?
How can can we help data partners create and share LOD?
Linked Open Data? What is it?
A data model for Linked Data
● Placeso GeoNames 7.4M
● Conceptso GEMET 8.5Mo Dbpedia 1.2Mo Getty AAT 1M
● Agentso Dbpedia 150k
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!
Open Source inventory on Labs
Still many R&D efforts - do join in!!!
EuropeanaTechcommunity
In February 2015 we will host a EuropeanaTech conference. Exact
date to be announced.
Long-term R&D effort example
How can can we serve this user better? By using LOD?
Europeana Labs - APIs, tools, docs, data
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
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
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
Check out Crotos!
How can can we serve this user better? By using LOD?
LOD to the rescue!
LOD to the rescue!
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
Subject facet for the WWI-theme, based on localised SKOS-concepts, so they are...
...multilingual
SKOS terms and labels indexed in SOLR
● 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!
Entity pages for concepts, agents, periods and places with links to other objects in Europeana. Near endless browse!
FIN
Useful links
→Europeana Labs→EuropeanaTech community →Europeana Data Model documentation →Europeana Twitter @EuropeanaEU→EuropeanaTech Twitter @EuropeanaTech