The European ALIADA project : introduction

Ádám HorváthMuseum of Fine Arts, Budapest

33rd ADLUG ANNUAL MEETINGPiazza Armerina, 24 – 26 September 2014

© 2014 Aliada Consortium Art Libraries Facing the Challenges of a Digital AgeÁdám Horváth – HNM / MFAB 2

Contents

http://aliada-project.eu

• What is semantic web• Linked Open Data advantages• Usage of semantic web• Published datasets• Publishing data in the LOD cloud

© 2014 Aliada Consortium Art Libraries Facing the Challenges of a Digital AgeÁdám Horváth – HNM / MFAB 3

What is semantic web (Linked Open Data (LOD))

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• Series of RDF statements– Subject predicate object– The statement is based on URI-s– Example

• Decameron was created by Boccaccio• http://nektar.oszk.hu/data/manifestation/2804140

(Decameron)• http://purl.org/dc/terms/creator (was created by )• http://viaf.org/viaf/64002165 (Boccaccio)

© 2014 Aliada Consortium Art Libraries Facing the Challenges of a Digital AgeÁdám Horváth – HNM / MFAB 4

Storing Linked Open Data

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• RDF store

• SPARQL endpoint

© 2014 Aliada Consortium Art Libraries Facing the Challenges of a Digital AgeÁdám Horváth – HNM / MFAB 5

Expressing predicates

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• Predicates come for vocabularies– FRBRoo– FRBRer– RDFDC– ISBD– Etc.

© 2014 Aliada Consortium Art Libraries Facing the Challenges of a Digital AgeÁdám Horváth – HNM / MFAB 6

Linked Open Data advantages

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• The linked data is built on the current Internet architecture

• It is machine readable• The data can be easily connected• Represents data and not just text

© 2014 Aliada Consortium Art Libraries Facing the Challenges of a Digital AgeÁdám Horváth – HNM / MFAB 7

RDF example

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© 2014 Aliada Consortium Art Libraries Facing the Challenges of a Digital AgeÁdám Horváth – HNM / MFAB 8

RDF example

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© 2014 Aliada Consortium Art Libraries Facing the Challenges of a Digital AgeÁdám Horváth – HNM / MFAB 9

Linked Open Data advantages

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• The RDF is not domain specific. It is a worldwide API to data– Galleries, libraries, archives and museums

(GLAM) can step outside of their domain, their data can interact with the data of other domains

© 2014 Aliada Consortium Art Libraries Facing the Challenges of a Digital AgeÁdám Horváth – HNM / MFAB 10

Usage of Linked Open Data

http://aliada-project.eu

• Smart search

• Data enrichment

• Solving problems more easily

• Expressing difficult relationships

• Standards based on linked data

© 2014 Aliada Consortium Art Libraries Facing the Challenges of a Digital AgeÁdám Horváth – HNM / MFAB 11

Linked Open Data are spreading

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• Datasets in the LOD cloude– Union Catalog of Sweden (LIBRIS)– National Library of Hungary– Biblioteca Nacional de España – Yale Centre of British Art– Italian museums– British Museum– Europeana (EDM)

© 2014 Aliada Consortium Art Libraries Facing the Challenges of a Digital AgeÁdám Horváth – HNM / MFAB 12

Linked Open Data are spreading

http://aliada-project.eu

• Datasets in the LOD cloude– Union Catalog of Sweden (LIBRIS)– National Library of Hungary– Biblioteca Nacional de España – Yale Centre of British Art– Italian museums– British Museum– Europeana (EDM)

© 2014 Aliada Consortium Art Libraries Facing the Challenges of a Digital AgeÁdám Horváth – HNM / MFAB 13

Linked Open Data are spreading

http://aliada-project.eu

• Datasets in the LOD cloude– Union Catalog of Sweden (LIBRIS)– National Library of Hungary– Biblioteca Nacional de España – Yale Centre of British Art– Italian museums– British Museum– Europeana (EDM)

© 2014 Aliada Consortium Art Libraries Facing the Challenges of a Digital AgeÁdám Horváth – HNM / MFAB 14

Publishing linked data

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• It is easy because GLAM institutions have detailed metadata

© 2014 Aliada Consortium Art Libraries Facing the Challenges of a Digital AgeÁdám Horváth – HNM / MFAB 15

Publishing linked data

http://aliada-project.eu

• You have to be aware of the following– RDF– RDF representations (XML, Turtle, Json, etc)– URI, IRI and their character encoding– URI syntax– Internet name resolution architecture– HTTP communication

• Content negotiation, Web servers rewriting rules

© 2014 Aliada Consortium Art Libraries Facing the Challenges of a Digital AgeÁdám Horváth – HNM / MFAB 16

Publishing linked data

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• You have to be aware of the following (cont)– Vocabularies

• FRBRer• CIDOC-CRM• FRBRoo• RDFDC• RDA• ISBD• SKOS• BIBO

© 2014 Aliada Consortium Art Libraries Facing the Challenges of a Digital AgeÁdám Horváth – HNM / MFAB 17

Publishing linked data

http://aliada-project.eu

• You have to be aware of the following (cont)– Vocabularies (cont)

• OAI-ORE• MODS• BIBFRAM• FOAF• XMP• UdcSummary• ….

© 2014 Aliada Consortium Art Libraries Facing the Challenges of a Digital AgeÁdám Horváth – HNM / MFAB 18

Publishing linked data

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• You have to be aware of the following (cont)– RDF stores

• Jena, Virtuoso

– SPARQL endpoints• Fuseki

– How to register your dataset– LOD email lists– Data conversion

© 2014 Aliada Consortium Art Libraries Facing the Challenges of a Digital AgeÁdám Horváth – HNM / MFAB 19

Publishing linked data

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• You have to be aware of the following (cont)– Open data initiative– Open data licencing methods– …..

© 2014 Aliada Consortium Art Libraries Facing the Challenges of a Digital AgeÁdám Horváth – HNM / MFAB 20

http://aliada-project.eu

@aliadaproject