A presentation about the linked data activities in the German National Library accompanying my lunch talk in the National Library of New Zealand on August 13, 2013.

1. Lars G. Svensson
LOAD – Linked Open Antipodal Data
A brief overview of the Linked Data activities in the
German National Library
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| Linked Open Antipodal Data | August 13, 2013

2. When someone searches for
information, the first place they visit
usually isn‘t the library
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3. There it is!
WOW!
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| Linked Open Antipodal Data | August 13, 2013
Photo by Wendt Commons (CC BY): http://www.flickr.com/photos/wendt-library/5190902316/
The data librarians create could help
making search better

4. Outside of libraries, our data formats
are not readily understood
MAB 2
FRBR
UNIMARC
Z39.50
ISBD
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http://farm1.static.flickr.com/159/342220423_558ea703f6_b.jpg
MARC 21

5. Some
data
Other
data
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| Linked Open Antipodal Data | August 13, 2013
Library
data
Photo by KIUI Staff (CC BY): http://www.flickr.com/photos/kiui/
3693823005/
Ideally, it should be easy for other
service providers to re-use library data

6. Linking Open Data cloud diagram, by Richard Cyganiak and Anja Jentzsch. http://lod
-cloud.net/
Linked Library Data could be a good way
to start
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7. Fotos by Stephan Jockel
The German National Library has much
data
Books
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Serials
| Linked Open Antipodal Data | August 13, 2013
Archival
records
Sound
carriers

8. The data is a by-product of our
collection mandate
[…] entrusted with the task of collecting, permanently
archiving, bibliographically classifying and making
available to the general public all German and Germanlanguage publications from 1913, foreign publications
about Germany, translations of German works, and the
works of German-speaking emigrants published abroad
between 1933 and 1945.
[…]
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9. Photo by Beatrice Murch (CC BY-SA): http://flickr.com/photos/blmurch/465623933/
The immediate output of the daily work
is title data
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10. The title data is supported by authority
data from the GND
GND
PND
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SWD
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GKD
EST

11. Increasingly, we make digital full texts
available
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12. Let‘s see:
Who is out
there?
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Photo by Ian T. Edwards (CC BY-NC-SA): http://www.flickr.com/photos/hanuman/
239311523/a
We began with Linked Data in 2010 in
order to reach out to non-library
communities

13. http://www.museum-digital.de/thue/index.php?t=objekt&oges=477
The authority data seems to be the most
interesting dataset
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14. Use cases for title data is still workin-progress
http://d-nb.info/gnd/2028282-5
Frankfurt am Main
oder Frankfurt/Oder?
http://d-nb.info/gnd/2005153-0
1806 fiel Frankfurt unter die Herrschaft des Fürstprimas
Karl Theodor von Dalberg, der es mit seinen
Fürstentümern Regensburg und Aschaffenburg zu einem
selbständigen Staat innerhalb des Rheinbunds vereinigte.
http://d-nb.info/gnd/2031951-4
http://d-nb.info/gnd/118720961
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http://d-nb.info/gnd/2033949-5

15. A third field are ontologies structuring
the data
gnd:
118584596
gndo:
Differentiated
Person
rdf:type
agrelon:hasChild
gnd:
119176653
http://d-nb.info/standards/elementset/gnd
http://d-nb.info/standards/elementset/agrelon
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Wolfgang
Amadeus
Mozart
Franz Xaver
Wolfgang
Mozart

16. Photo by Abdulla Al Muhairi (CC BY): http://www.flickr.com/photos/serdal/2530813524
In order to encourage re-use, (almost)
all metadata is available under CC0
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RDF
CSV
MARC
>2 years
<2 years
FEE
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17. We aim to link our data to as many
other datasets as possible
VIAF
Wikipedia
Agrovoc
LCSH
DNB
You!
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RAMEAU
Dewey

18. Photo by The Hamster Factor (CC BY-NC-ND): http://www.flickr.com/photos/disaster_area/3454110496/
Much link-creation is still done manually
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#FORMAT: BEACON
#PREFIX: http://d-nb.info/gnd/
#TARGET: http://cgi-host.unimarburg.de/~omgesa/gs/xs1.php?f1=
pnd&s1={ID}
#FEED: http://www.online.unimarburg.de/fpmr/pnd.txt #CONTACT:
Jörg Witzel joerg.witzel@staff.unimarburg.de
#INSTITUTION: Forschungsstelle für
Personalschriften
#NAME: Gesamtkatalog
deutschsprachiger Leichenpredigten
(GESA)
#MESSAGE: Leichenpredigten 15501800 (GESA) #TIMESTAMP: 2012-0809
100000193|3
100006353|9
100009271|3
100017061|9
100017495|1
100018335|8

19. We develop the platform Culturegraph
to create links algorithmically
@prefix void: <http://rdfs.org/ns/void#> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix dcterms: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
<mx:datafield tag="153" ind2=" " ind1=" ">
<mx:subfield code="a">220.531</mx:subfield>
<mx:subfield code="y">1</mx:subfield>
<mx:subfield code="a">7</mx:subfield>
<mx:subfield code="e">220.531</mx:subfield>
<mx:subfield code="j">Paraphrasen</mx:subfield>
<mx:subfield code="9">ess=ren</mx:subfield>
</mx:datafield>
</mx:record>
120 Million
records connected
through five
algorithms
<owl:AnnotationProperty rdf:about="http://d-nb.info/standards/elementset/gnd#marc21equivalent">
<rdfs:label xml:lang="de">MARC 21 Entsprechung</rdfs:label>
<rdfs:label xml:lang="en">MARC 21 equivalent</rdfs:label>
<rdfs:comment xml:lang="de">Gibt die MARC 21 Entsprechung des Elements im GND-MARC-Format wieder.</rdfs:comment>
<rdfs:comment xml:lang="en">Expresses the MARC 21 equivalent for this element in the GND MARC format.</rdfs:comment>
</owl:AnnotationProperty>
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20. CulturegraphAuthorities shall be a
gateway service to entities in the GND
Hidden
relations
Duplicates
GND
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Missing
backlinks
Missing
links
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culturegraph.org
?
!

21. Many other European libraries and CH
portals are active with Linked Data, too
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22. Picture by Kungl. biblioteket: http://farm5.static.flickr.com/4143/4815026952_076a4eb616_z.jpg
The Swedish National Library deserves a
honourable mention
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23. http://www.bnf.fr/images/opencat_schema.png
The BnF uses Linked Data to build
services for smaller libraries
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24. The BnF uses Linked Data to build
services for smaller libraries
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25. Foto von Xavier de Jauréguiberry (CC BY-NC-ND): http://www.flickr.com/
photos/25831000@N08/3260858355/
BL and DNB together prototype a network
of interlinked national bibliographies
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26. Photo by Nico Kaiser (CC-BY): http://www.flickr.com/photos/nicokaiser/4667377944/sizes/z/in
/
photostream/
So does Linked Data really help to
navigate the Semantic Web?
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27. http://farm1.static.flickr.com/159/342220423_558ea703f6_b.jpg
People outside of libraries can benefit
from our data but find it hard to
understand the data formats
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28. Linking Open Data cloud diagram, by Richard Cyganiak and Anja Jentzsch. http://lod
-cloud.net/
Linked Library Data could be a good
compromise
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29. http://www.gedankenkonsum.de/wp-content/uploads/2011/03/the-future.jpg
By creating more links between libraries,
we can create a critical mass of data and
head towards the bibliographical future
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30. 30 | 31
http://upload.wikimedia.org/wikipedia/commons/4/4d/Tim_Berners-Lee_CP_2_head_crop.jpg
Photo by Mary Harrsch (CC BY-NC-SA) http://www.flickr.com/photos/mharrsch/2522112120/
The Giant Global Graph: Where
Kallimachos meets Tim Berners-Lee
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31. Literature about DNB Linked Data
Service:
The Deutsche Nationalbibliografie as linked open data :
applications and opportunities ; World Library and
Information Congress: 78th General Conference and
Assembly, IFLA 2012, Helsinki / Jürgen Kett ; Sarah Beyer
; Mathias Manecke ; Yvonne Jahns ; Lars G. Svensson.
urn:nbn:de:101-2012052306
Licensing Library and Authority Data Under CC0: The DNB
Experience / Lars Svensson.
http://www.w3.org/2013/04/odw/odw13_submission_57.p
df
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