Linked data as a library data platform

Linked Data as a Library Data Platform A Proof of Concept from National Technical Library of Czech Republic Jindřich Mynarz National Technical Library ELAG 2010 Helsinki June 10th 2010

Overview  Library data  Linked data  Converting library data to linked data  Distribution  Benefits of linked library data

Library data are not very readable

Source: National Library of the Czech Republic card catalogue Catalog card - record

MARC Record CAPTCHA - Completely Automated Public Turing test to tell Cataloguers and Humans Apart

Library data in XML are still not very readable

Library-specific access protocols (Z39.50, OAI-PMH)

http://www.flickr.com/photos/lwr/144004119/

ttp://www.flickr.com/photos/dullhunk/303503677 Linked data

Linked data principles Thou shalt:  Use URIs as names for things.  Use HTTP URIs so that people can look up those names.  When someone looks up a URI, provide useful information, using the standards (RDF, SPARQL).  Include links to other URIs. so that they can discover more things.

http://www.flickr.com/photos/dullhunk/3525013547

Data conversion  Choosing datasets  Choosing description  Extraction  Linking  Distribution

Choosing description  Domain ontologies  Established, popular (Dublin Core, SKOS) Falcons concept search

http://blissfullydomestic.com/2010/spring-clean-your-blog-comments Extraction - matching dirty data

Linking Library data already contain links

Links to resources identified by code values

Links to classification notations

Links to persons

Links to geographical entities and institutions

„Outsourcing“ authorities  DBPedia  VIAF  Geonames

http://thesecretmirror.com/linked-data/why-you-should-support-linked-data Crawling data

Distribution  Lightweight API  Single interface to the datasets

http://www.flickr.com/photos/virtualsugar/316200555 Open bibliographic data

Open licences

National Technical Library's library linked data prototype http://www.panoramio.com/photo/20268409  Incomplete  Parallel coexistence with the original way of data distribution

Benefits of linked library data  Readable  Sharable  Linkable  Distributable  Integrable  ?-able

Changes

Questions!

http://www.flickr.com/photos/theredproject/3302110152 Jindřich Mynarz www.techlib.cz/en jindrich.mynarz@techlib.cz @jindrichmynarz

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Linked data as a library data platform

by Jindřich Mynarz

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