Linked Data outlook

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Linked Data outlook

Haifa 12th September 2011

2 Ex Libris Ltd., 2011 - Internal and Confidential

http://www.w3.org/wiki/File:SweoIG$$TaskForces$$CommunityProjects$$LinkingOpenData$LoDLogo.gif

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



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.


http://viaf.org/viaf/64013650


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




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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.

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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

http://en.wikipedia.org/wiki/File:Europeana_logo.png

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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


http://en.wikipedia.org/wiki/File:Europeana_logo.png

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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 Europeana

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



Thank You

Linked Data outlook

Documents

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