1.
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

2.
Overview
 Library data
 Linked data
 Converting library data to linked data
 Distribution
 Benefits of linked library data

3.
Library data are not very readable

4.
Source: National Library of the Czech Republic card catalogue
Catalog card - record

5.
MARC Record
CAPTCHA - Completely Automated Public Turing test to tell
Cataloguers and Humans Apart

6.
Library data in XML are still
not very readable

7.
Library-specific access protocols
(Z39.50, OAI-PMH)

8.
http://www.flickr.com/photos/lwr/144004119/

9.
ttp://www.flickr.com/photos/dullhunk/303503677
Linked data

10.
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.

11.
http://www.flickr.com/photos/dullhunk/3525013547

12.
Data conversion
 Choosing datasets
 Choosing description
 Extraction
 Linking
 Distribution

13.
Choosing description
 Domain ontologies
 Established, popular (Dublin Core, SKOS)
Falcons concept search

14.
http://blissfullydomestic.com/2010/spring-clean-your-blog-comments
Extraction - matching dirty data

15.
Linking
Library data already contain links

16.
Links to resources identified
by code values

17.
Links to classification notations

18.
Links to persons

19.
Links to geographical entities
and institutions

20.
„Outsourcing“ authorities
 DBPedia
 VIAF
 Geonames

21.
http://thesecretmirror.com/linked-data/why-you-should-support-linked-data
Crawling data

22.
Distribution
 Lightweight API
 Single interface to the datasets

23.
http://www.flickr.com/photos/virtualsugar/316200555
Open bibliographic data

24.
Open licences

25.
National Technical Library's
library linked data prototype
http://www.panoramio.com/photo/20268409
 Incomplete
 Parallel coexistence with the original way of
data distribution

26.
Benefits of linked library data
 Readable
 Sharable
 Linkable
 Distributable
 Integrable
 ?-able

27.
Changes

28.
Questions!

29.
http://www.flickr.com/photos/theredproject/3302110152
Jindřich Mynarz
www.techlib.cz/en
jindrich.mynarz@techlib.cz
@jindrichmynarz