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The Registration Agency, DDI and Linked Open Data

Learn how Da|ra, a registration agency, mapped their metadata schema to DDI and utilized Linked Open Data principles for improved data interlinking and query capabilities. Discover the benefits of LOD and its connection to crowd-sourcing and the web.

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The Registration Agency, DDI and Linked Open Data

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  1. The Registration Agency, DDI andLinked Open Data EDDI 2011 Nicole Quitzsch, Erdal Baran GESIS – Leibniz Institute for the Social Sciences

  2. History of the GESIS-Archive • Over 50 years • DBK = Data Catalogue of the Archive • DBK schema was developed long before DDI  DDI compatible

  3. Future

  4. Simplicity • Da|raismemberofDataCite • Da|raandDataCiteorientedto DDI andcontainedsuggestionsfrom DDI • Da|ra important elements from DDI and integrated them into our metadata schema

  5. Mapping • Data sets of independent, heterogeneous systems must be mapped to a common data format • Mapping only works if metadata formats are interoperable

  6. Mapping da|ra 2.2 to DDI 3.1 Da|ra mandatory properties:

  7. Mapping Problems Information Lost

  8. Mapping problems

  9. Metadata interoperability • DDI 3.1 can hold da|ra mandatory metadata properties • Da|ra 2.2 metadata schema is compliant with the DDI 3.1 standard

  10. Conclusion

  11. What is Linked Open Data (LOD)? • Linked Data Principles* • Use URIs asnamesforthings • Use HTTP URIs so thatpeoplecanlookupthosenames • Whensomeonelooksup a URI, provideusefulinformation, usingthestandards (RDF*,SPARQL) • Include links toother URIs, so thattheycandiscovermore (related) things • Open Data referstothe legal usageofdata * [Tim Berners-Lee 2007, http://www.w3.org/DesignIssues/LinkedData.html]

  12. Development ofLinked Open Data

  13. sameAs Linked Open Data by BBC

  14. Motivation • Value of data increases the more it is interlinked with other data • RDF to structure the data • HTTP URIs to publish • Semantic references such as owl:sameAs to semantically associate and link • LOD Benefits: • By following the links, humans can browse, search engines can crawl • Query expansion capabilities over distributed data

  15. Usage of the „Crowd Sourcing“

  16. Dalai Lama Connection betweenda|raand Web

  17. Connection betweenda|raand Web Thomas Bosch – Reusing XML Schemas‘ Information as a Foundation for Designing Domain Ontologies Working Group - Semantic Statistics

  18. Thank you for your attention!Nicole Quitzsch GESIS–Leibniz-Institute for the Social Sciencesnicole.quitzsch@gesis.orgErdal Baran GESIS–Leibniz-Institute for the Social Scienceserdal.baran@gesis.orgFor further information visit:http://www.gesis.org/dara

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