1. Linked Open Library Data @hbz Bielefeld Conference, 26.04.2012 Dr. Silke Schomburg

2. Agenda 1.Basics 2.Why LOD? 3.hbz LOD activities a)lobid.org b)culturegraph 4.Perspectives 2

3. Basics 3

4. Linked Data Principles 4

5. Picture of LOD cloud 5

6. A sustainable strategy of publishing and linking data on the web requires the data to be open. 6

7. 7 http://www.w3.org/DesignIssues/LinkedData.htmlhttp://www.w3.org/DesignIssues/LinkedData.html & http://lab.linkeddata.deri.ie/2010/star-scheme-by-example/ http://lab.linkeddata.deri.ie/2010/star-scheme-by-example/

8. Why LOD? 8

9. Motivation  Use of international and cross- domain web standards leads to  Increased discoverability  Multiple usability of one dataset  Maximized interoperability & re- usability  Flexible data model  Things you can‘t say about traditional library data… 9

10. Expected ROI  Synergy effects through standardization of technology stack:  Quantitative: saved resources  Qualitative: improved services 10

11. hbz LOD activities 11

12. 12 Since 2009Annual SWIB conference (together with ZBW)SWIB 03/2010First open data publicationopen data publication Since 06/2010 Coordinating the OKFN WG on Open Bibliographic DataWG on Open Bibliographic Data 07/2010lobid.orglobid.org launched 11/2010culturegraph.orgculturegraph.org starts 01/2011PrinciplesPrinciples on openbiblio data 11/2011Legal open data guide Legal open data guide published, DINI-KIM recommendations for opening up library datarecommendations

13. lobid.org 13

14. Technology stack  Data: exports from legacy systems & LOD dumps  Triple Store: 4store4store  Search engine: elasticsearchelasticsearch  RDF browser: PhresnelPhresnel  Read news on our hbz LOD bloghbz LOD blog 14

15. 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. 16 Source: http://lobid.org/organisation/DE-361/about

17. 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 informationthe Data Hub 17

18. 18 Source: http://lobid.org/resource/HT002948556/abouthttp://lobid.org/resource/HT002948556/about

19. culturegraph 19

20. Open platform for interconnecting datasets  Persistent Identification of entities  Computation of similarities and links  Administration and publication of mappings  Open Data / Free SoftwareFree Software 20

21. culturegraph as signpost in the LOD cloud 21 Hidden duplicates Different services Different interfaces ? Culturegraph !

22. 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 DemonstratorDemonstrator 22

23. Perspectives 23

24. Bulding a service-oriented library infrastructure  Centered around culturegraph  Funded by DFG (?)  Cooperative development by several German library service centers and DNB 24

25. 25

26. Characteristics  Based on free flow of open data  Real-time communication  Web Services:  Deduplication Service  Identifier Service  Holdings & Availability Service  …  Generic API 26

27. 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

28. Thanks. Questions? With pleasure now/here or also later to semweb@hbz-nrw.de 28

29. License 29 These slides are published under a Creative Commons license: http://creativecommons.org/licenses/by/3.0/de/