LOAD–Linked Open Antipodal Data

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

When someone searches for
information, the first place they visit
usually isn‘t the library

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There it is!

WOW!
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Photo by Wendt Commons (CC BY): http://www.flickr.com/photos/wendt-library/5190902316/

The data librarians create could help
making search better

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

Some
data

Other
data
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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

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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Fotos by Stephan Jockel

The German National Library has much
data

Books
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Serials


Archival
records

Sound
carriers

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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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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The title data is supported by authority
data from the GND

GND
PND

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SWD


GKD

EST

Increasingly, we make digital full texts
available

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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

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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Use cases for title data is still workin-progress
http://d-nb.info/gnd/2028282-5
Frankfurt am Main
oder Frankfurt/Oder?


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/118720961

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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

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

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

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

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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CulturegraphAuthorities shall be a
gateway service to entities in the GND
Hidden
relations
Duplicates

GND

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Missing
backlinks
Missing
links


culturegraph.org

?
!

Many other European libraries and CH
portals are active with Linked Data, too

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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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http://www.bnf.fr/images/opencat_schema.png

The BnF uses Linked Data to build
services for smaller libraries

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The BnF uses Linked Data to build
services for smaller libraries

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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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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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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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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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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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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


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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LOAD–Linked Open Antipodal Data

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