Post on 17-Jan-2016
Linked Open Library Data @hbz
Bielefeld Conference, 26.04.2012
Dr. Silke Schomburg
Agenda
1.Basics2.Why LOD?3.hbz LOD activities
a) lobid.orgb) culturegraph
4.Perspectives
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Basics
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<skip>Linked Data Principles
</skip>
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<skip>Picture of LOD cloud
</skip>
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A sustainable strategy of publishing and linking data on the web requires the data to be open.
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7http://www.w3.org/DesignIssues/LinkedData.html &http://lab.linkeddata.deri.ie/2010/star-scheme-by-example/
Why LOD?
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Motivation Use of international and cross-
domain web standards leads toIncreased discoverabilityMultiple usability of one datasetMaximized interoperability & re-
usabilityFlexible data model
Things you can‘t say about traditional library data…
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Expected ROI
Synergy effects through standardization of technology stack:Quantitative: saved resourcesQualitative: improved services
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hbz LOD activities
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Since 2009 Annual SWIB conference (together with ZBW)
03/2010 First open data publication
Since 06/2010
Coordinating the OKFN WG on Open Bibliographic Data
07/2010 lobid.org launched
11/2010 culturegraph.org starts
01/2011 Principles on openbiblio data
11/2011 Legal open data guide published,
DINI-KIM recommendations for opening up library data
lobid.org
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Technology stack
Data: exports from legacy systems & LOD dumps
Triple Store: 4store Search engine: elasticsearch RDF browser: Phresnel Read news on our hbz LOD blog
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lobid-organisations
RDF descriptions for more than 40k international organisations
Data sources: German ISIL registry & MARC Organization Code database
Not (yet) openly licensed
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16Source: http://lobid.org/organisation/DE-361/about
lobid-resources
LOD interface for open data from hbz union catalog
Licensed with CC0 Currently more than 10M records Links to other datasets (GND,
ZDB, DBpedia, dewey.info, …) See description on the Data Hub
for more information17
18Source: http://lobid.org/resource/HT002948556/about
culturegraph
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Open platform for interconnecting datasets
Persistent Identification of entities Computation of similarities and
links Administration and publication of
mappings Open Data / Free Software
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culturegraph as signpost in the LOD cloud
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Hiddenduplicates
Different services
Differentinterfaces
?Culturegraph !
First Project: Resolving & Lookup
Input: 6 German union catalogsObjective: Bundling of
manifestationsService:
Publication of bundlesMinting URNs for approved bundlesSearch bundles using established
identifiers Take a look at the Demonstrator
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Perspectives
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Bulding a service-oriented library infrastructure
Centered around culturegraph Funded by DFG (?) Cooperative development by several
German library service centers and DNB
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CharacteristicsBased on free flow of open dataReal-time communicationWeb Services:
Deduplication ServiceIdentifier ServiceHoldings & Availability Service…
Generic API
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SWIB 2012
”Semantic Web in Libraries" (SWIB) hosted by hbz and ZBW – Leibniz Information Centre for EconomicsCologne, 27. - 29.11.2012http://swib.org/
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Thanks.
Questions?
With pleasure now/here or also later to semweb@hbz-nrw.de
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License
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These slides are published under a Creative Commons license:
http://creativecommons.org/licenses/by/3.0/de/