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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