Europeana as source for educational

Linked Data and its applications

Dov Winer

MAKASH – Advancing ICT Applications in Education

Judaica Europeana, European Association for Jewish Culture

11th EdReNe Conference

Athens, May 6th 2014

http://www.slideshare.net/dovw/20140506-edrene-athenswiner

• Europeana / DPLA: Sources of Curated Quality

Content

- part of the Linked Data cloud

• Tools support the use of the content and create

context

- Hackatons vs Mature tools development

• Two mature tools: Annotation (Pundit) and Storytelling

(Movio)

• Vocabularies as embedded knowledge: crystal seeds

in the ocean of Linked Data

Outline

Educational Applications of Linked Data

• Assessing the Educational Linked Data Landscape

M. d’Aquin, A. Adamou, S. Dietze - WebSci’13 May 1-5, Paris France

Linked Up Project

http://linkedup-project.eu/

Linked Universities

http://linkeduniversities.org/

http://www.meducator.net/

Will be presented in full later today by

Dr. Elena Shulman

http://labs.europeana.eu

Europeana Content:

2014 Business Plan

Europeana/DPLA Collaboration

Linked Data: structured

data on the Web David Woood, Marsha Zeidman

Luke Ruth with Michael Hausenblas

Manning Publications MEAP 2013

Over 31.7 billion RDF triples

The essence of RDF: the “triple”

Source: “The thirty minute guide to RDF and Linked Data”, by Ian Davis and Tom Heath

Pundit: a toolkit for semantic

annotation of Web pages

LINK to Vimeo clip: http://vimeo.com/85261745

http://www.thepund.it/

http://dm2e.eu

MOVIO: a toolkit for storytelling

(Virtual Exhibitions)

Who? What? When? Where?

Controlled vocabularies: hubs of

Jewish Knowledge in the

Structured Web

http://www.judaica-europeana.eu/Search_Europeana_Collections_with_Judaic_categories.html

Who?

When?

Jewish gazetteers

Where?

Jewish encyclopedias: CONTEXT

The goals of the project

Linking and Populating the

Digital Humanities are to

create and maintain data

integration tools tailored to

digital humanities collections in

order to build a machine-

readable web of facts about

covered domains.

Jewish encyclopedias: CONTEXT

Encyclopedia Judaica

Encyclopedia of Russian Jewry

http://www.rujen.ru/

http://www.jewishencyclopedia.com/

Rav Zeev Vagner

Josh Kopelman

Tasks for a common agenda on Jewish vocabularies

• Who? Names

• Disseminate the use of VIAF

• Seek to include periodical publications in VIAF

• RAMBI

• Long term common effort to achieve comprehensiveness

• Where? Places

• JewishGen and Yad Vashem gazetteers as linked data?

• Use Europeana guidelines to map places coordinates

• Registry of Jewish gazetteers / RDF/ community based Jewish gazetteer service

similar to GeoNames, Freebase, LinkedGeoData etc

• When? Periods

• Survey available vocabularies and seek to express them as Linked Data

• Institutional tools for in-depth probe on current periodisation practices

http://www.judaica-europeana.eu/docs/jewish_vocabularies_LOD.pdf

Thank you!

dov.winer@gmail.com

http://www.slideshare.net/dovw/20140506-edrene-athenswiner

EDM

Europeana Data Model

Guus Schreiber

with input from Carlo Meghini, Antoine Isaac, Stefan Gradmann,

Makx Dekkers et al. from Europeana V1

Outline

EDM requirements

1. Distinction between “provided object” (painting, book,

program) and digital representation

2. Distinction between object and metadata record describing

an object .

3. Allow for multiple records for same object, containing

potentially contradictory statements about an object

4. Support for objects that are composed of other objects

5. Standard metadata format that can be specialized

6. Standard vocabulary format that can be specialized

7. EDM should be based on existing standards

– “not yes another standard” !

dov.winer@gmail.com

SKOS Simple Knowledge ORGANIZATION SYSTEM

thesauri, classifications, subjects, taxonomies, folksonomies,… controlled vocabulary

concepts are documented, linked, merged with other data, composed, integrated

and published on the Web

CONCEPTS identified by URIs using RDF triples

natural language expressions to refer to concepts:

skos: prefLabel [descriptor]

skos: altLabel [synonims, acronyms, abbreviations]

SEMANTIC RELATIONSHIPS

…broader and narrower concepts

broader/narrower relationships assert that a concept

is broader/narrower in meaning

…concepts somehow related

SCHEMES compiled sets of concepts: ConceptScheme class and inScheme relationship to

link a concept to a scheme

hasTopConcept relationship for the entry points of narrower/broader hierarchy

LINK schemes map concepts from different schemes using the properties

exactMatch, broadMatch, narrowMatch and relatedMatch May 14

OAI ORE

Open Archives Initiative Object Reuse & Exchange

• Specification:

http://www.openarchives.org/ore/1.0/toc.html

• Primer: http://www.openarchives.org/ore/1.0/primer

• Specified with an RDF model

• Four key notions (RDF classes) – Object: the book/painting/program being described

– Aggregation: organizes object information from a particular provider (museum,

archive, library)

– Digital representation: some digital form of the object with a Web address

– Proxy: the metadata record for the object

OAI ORE

From the OAI-ORE Primer