Data modelling at Europeana and DM2EBuilding and using networks of metadata vocabularies

Antoine Isaac - Stefan Gradmann

Europeana- KU Leuven

Semantic Media Web, Berlin, Sept. 27, 2013

Europeana.eu, Europe’s cultural heritage portal

Museums

National Aggregators

Regional Aggregators

Archives

Thematic collections

Libraries

29M objects from 2,200 European galleries, museums, archives and libraries

Europeana.eu, Europe’s cultural heritage portal

Text

Image

Video

Sound

3D

Europeana Data Model: a Collaborative Effort

Cross-community development

Involving library, archive and museum experts

Ca. 60 participants

http://pro.europeana.eu/edm-documentation

EDM: an example

Provided Cultural Heritage Object (CHO) and descriptive metadata

Web Resources – digital representations

Contextual Resources – Places

EDM is based on existing ontologies

OAI-ORE (Open Archives Initiative Object Reuse & Exchange): organizing an object’s metadata and digital representation(s)

Dublin Core : descriptive metadata

SKOS (Simple Knowledge Organization System) : conceptual vocabulary representation

CIDOC-CRM : event and relationships between objects

Allowing different semantic grains

The theory: Providers provide data close to original models

Using mappings to more interoperable level

statement at generic level

statement at specific level

Different semantic grains

EDM uses specialization of classes and properties.

It will enable the definition of extensions, “applications profiles” answering to the need of specific communities.

A Collaborative Effort (2)

EDM makes Europeana ready to ingest metadata that is closer to specific community concerns

But still mapped to common elements

Europeana & partners can develop EDM “profiles” upon which everyone could build specific functionality

Based on best practices from sector or domain level

Disclaimer: coming slides adapted from a presentation by Steffen HennickeBerlin School of Library and Information Science

steffen.hennicke@staff.hu-berlin.de

Digitised Manuscripts to Europeana

• EU project (2012-2015), • Germany, Austria, Norway, Greece, UK, France, Italy

• DM2E works on– tool for data migration to Europeana and Linked Data (OMNOM)– research environment for the Digital Humanities (PUNDIT)– community of cultural heritage professionals (OPENGLAM)

http://dm2e.eu/

Content

Islamic Scientific Manuscript Islamic Scientific Manuscript Initiative (MPWIG)Initiative (MPWIG)

Nietzsche Source – Nietzsche Source – Digitale Digitale Faksimile Gesamtausgabe Faksimile Gesamtausgabe

(CRNS)(CRNS)

American Joint Distribution American Joint Distribution ComiteeComitee (EAJC) (EAJC)

Codices and Codices and Complutensische Polyglotte Complutensische Polyglotte (ONB)(ONB)

118.000+ items with118.000+ items with20.006.930+ pages20.006.930+ pages

Wittgenstein Source (UiB)Wittgenstein Source (UiB)

DM2E Data Model

• Semantically and structurally heterogeneous data– Complex hierarchies (EAD, METS)– Object data and transcriptions (TEI)– MARCXML, MAB2, etc.

• DM2E’s Data Model specializes EDM for the domain of handwritten manuscripts

Specialization of EDM in DM2E - Example

Reuse of Existing Ontologies in DM2E

• Types, roles and relations between agents– Friend-of-a-Friend (FOAF) : types of agents)– Publishing Roles Ontology (PRO) : roles of agents in the

publication process– VIVO : types of agents

• Detailed semantics on bibliographic entities– FRBR-aligned Bibliographic Ontology (FaBiO)– Citation Typing Ontology (CiTO)– Bibliographic Ontology (BIBO)

Guidelines for Specialising EDM

• Empirical analysis of source metadata

• Iterative mappings to the EDM

• Close cooperation with data providers for feedback and revisions

• Create new classes or properties only if there is no other suitable option available from existing ontologies

Thank you

Antoine Isaac , Stefan Gradmann

aisaac@few.vu.nl , stefan.gradmann@kuleuven.be