Download - 1 Linked Data outlook Haifa12 th September 2011. 2 Ex Libris Ltd., 2011 - Internal and Confidential.

1

Linked Data outlook

Haifa 12th September 2011

2 Ex Libris Ltd., 2011 - Internal and Confidential

6Linked data and Ex Libris products - IGeLU 2011

Triples

Subject - Predicate - Object

written by

painted byis about

author ofpainter of

is subject of

http://viaf.org/viaf/64013650

http://data.beeldengeluid.nl/gtaa/62486

http://viaf.org/viaf/112119293/

http://permalink.opc.uva.nl/item/001665446

http://permalink.opc.uva.nl/item/001665446

http://data.beeldengeluid.nl/gtaa/62486

Thing - Relation - Thing


• We create a totaly new kind of language.• It is for the whole web planetary level.• This will allow new kinds of services.• We are in a hot research phase.

• We create a totaly new kind of language.• It is for the whole web planetary level.• This will allow new kinds of services.• We are in a hot research phase.


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Principles of linked data

• Use URIs to identify things.

• Use HTTP URIs so that these things can be referred to and looked up by people and user agents.

• Provide useful information when its URI is looked up, using standard formats such as RDF/XML.

• Include links to other, related URIs in the exposed data to improve discovery of other related information on the Web.

Ex Libris Ltd., 2011 - Internal and Confidential

These technical principles are very brought.How to implement them depends on the use

case.

These technical principles are very brought.How to implement them depends on the use

case.

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A Research Example: Europeana

• Europeana.eu is an internet portal that acts as an interface to millions of books, paintings, films, museum objects and archival records

• Distributed digitized and born digital sources

• Fully using linked data techniques for metadata


A virtual European library, to make Europe's cultural heritage accessible for all

A virtual European library, to make Europe's cultural heritage accessible for all

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Problems

• Central Discovery Platform

• MetaSearch vs. Central Index

• Central Index

• Huge number of tripples performance

• Harvesting from various sources

• Variety of source formats (mostly none-RDF)

• Versioning of tripples vs. flat source records

• Governance of tripples vs. flat source records


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New DM2E Project

• Started September 2011

• Major part is new digitzation techniques ... AND

• Work Package 2: Interoperability Infrastructure(How to harvest various metadata into Europeana)


Digitised Manuscripts to EuropeanaDigitised Manuscripts to Europeana

Ex Libris is a partner in WP2.Ex Libris is a partner in WP2.

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Ex Libris contribution to DM2E

• RDFizer

• MARCXML RDF

• UNIMARC-XML RDF

• RDF2EDM

• Both are based on existing mapping rules

• Other partners develop editiors for mapping rules

• Both tools will be published in El Commons


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Ex Libris and Linked Data

• Questions to ask

• Technology / License of data / Business Policy

• Why should we do it?

• Interoperability, especially with other domains

• reshape shared metadata management

• What should we do?

• Publishing

• Utilization of linked data sources

• Modeling of future services


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Alma and Linked Data

• Apply RDFizer while publishing

• E.g. publish to LinkedData.org

• Keep global authority data incl. URI to source

• E.g. LCSH / VIAF navigation

• Enable URI lookup and reference to records in Community Catalog


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Summary

• Linked Data is in vivid research phase

How to do it

What to do with it

• Ex Libris takes part in that research as a partner

• e.g. DM2E-Project

• Ex Libris prepares its products

• e.g. Alma - URI access to Community Catalog
