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Linked Open Library Data @hbz. Bielefeld Conference, 26.04.2012 Dr. Silke Schomburg. Agenda. Basics Why LOD? hbz LOD activities lobid.org culturegraph Perspectives. 2. Basics. 3. <skip> Linked Data Principles </skip>. 4. <skip> Picture of LOD cloud </skip>. 5.

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Linked Open Library Data @hbz

Bielefeld Conference, 26.04.2012

Dr. Silke Schomburg


Agenda

  • Basics

  • Why LOD?

  • hbz LOD activities

    • lobid.org

    • culturegraph

  • Perspectives

2



<skip>

Linked Data Principles

</skip>

4


<skip>

Picture of LOD cloud

</skip>

5


A sustainable strategy of publishing and linking data on the web requires the data to be open.

6


http://www.w3.org/DesignIssues/LinkedData.html &http://lab.linkeddata.deri.ie/2010/star-scheme-by-example/

7



Motivation

  • Use of international and cross-domain webstandards leads to

    • Increased discoverability

    • Multiple usabilityofonedataset

    • Maximizedinteroperability & re-usability

    • Flexibledata model

  • Things youcan‘tsayabout traditional librarydata…

9


Expected ROI

  • Synergy effects through standardization of technology stack:

    • Quantitative: saved resources

    • Qualitative: improved services

10





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

14


lobid-organisations

  • RDF descriptions for more than 40k international organisations

  • Data sources: German ISIL registry & MARC Organization Code database

  • Not (yet) openly licensed

15


16

Source: 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 information

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18

Source: http://lobid.org/resource/HT002948556/about



Open platform for interconnecting datasets

  • Persistent Identification of entities

  • Computation of similarities and links

  • Administration and publication of mappings

  • Open Data / Free Software

20


culturegraph as signpost in the LOD cloud

Culturegraph

?

!

Different services

Differentinterfaces

Hiddenduplicates

21


First Project: Resolving & Lookup

  • Input: 6 German union catalogs

  • Objective: Bundling of manifestations

  • Service:

    • Publication of bundles

    • Minting URNs for approved bundles

    • Search bundles using established identifiers

  • Take a look at the Demonstrator

22



Bulding a service-oriented library infrastructure

  • Centered around culturegraph

  • Funded by DFG (?)

  • Cooperative development by several German library service centers and DNB

24



Characteristics

  • Based on free flow of open data

  • Real-time communication

  • Web Services:

    • Deduplication Service

    • Identifier Service

    • Holdings & Availability Service

  • Generic API

26


SWIB 2012

  • ”Semantic Web in Libraries" (SWIB) hosted by hbz and ZBW – Leibniz Information Centre for Economics

  • Cologne, 27. - 29.11.2012

  • http://swib.org/

27


Thanks.Questions? With pleasure now/here or also later to [email protected]

28


License

These slides are published under a Creative Commons license:

http://creativecommons.org/licenses/by/3.0/de/

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