The Europeana Strategy and Linked Open Data

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