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Linked Data in Libraries

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Linked Data in Libraries

  1. 1. LINKED DATA IN LIBRARIES OR: HOW I LEARNED TO STOP WORRYING AND LOVE THE WEB
  2. 2. WHAT IS LINKED DATA?
  3. 3. USING THE WEB TO CONNECT DATA SIMILAR TO HOW IT CONNECTS PAGES • ―Linked Data is simply about using the web to create typed links between data from different sources.‖ –Christian Bizer, Tom Heath, and Tim Berners-Lee, ―Linked Data—The Story So Far‖ • Connections between data are understandable by computer programs • Data is sharable, extensible, and reusable.
  4. 4. TIM BERNERS-LEE’S FOUR RULES 1. Use URIs as names for things 2. Use HTTP URIs so that people can look up those names 3. When someone looks up a URI, provide useful information, using the standards 4. Include links to other URIs, so they can discover more things
  5. 5. BBC LINKED DATA
  6. 6. PICTURE WITH URI http://www.bbc.co.uk/nature/images/ic/credit/640x395/m/ma/mallard/mallard_1.jpg
  7. 7. SEARCHABLE IN GOOGLE
  8. 8. RDF: RESOURCE DESCRIPTION FRAMEWORK • The main standard of linked data • RDF is a data model that expresses connections in the form of ―triples‖ • Model, not schema (expressing RDF often done in XML)
  9. 9. THE RDF TRIPLE Subject Predicate Object First Second Resource Resource Defines relationship using set vocabulary (ex. Dublin Core)
  10. 10. THE RDF TRIPLE: CONCEPTUAL EXAMPLES same as author of
  11. 11. LINKED DATA GRAPH Classifies Document 3 Author A Subject Written by Written by Author of Classified as Document Document 1 2 Author B ―Follow your nose.‖
  12. 12. WHAT CAN LINKED DATA DO FOR LIBRARIES? (A LOT)
  13. 13. UNLOCK LIBRARY DATA • Transforms library data so that it is of the web • Becomes easily searchable • Libraries can integrate outside data into what they already have • Anyone can reuse library data to create their own applications
  14. 14. EXAMPLE: CONTROLLED VOCABULARIES • Create URIs for each word in a controlled vocabulary • Creates method for classifying and cataloging web resources that can easily be used by libraries and others • Library of Congress has released LCSH as linked data, and OCLC has a modified version of LCSH called FAST as linked data
  15. 15. CATALOG COMPLEX RELATIONSHIPS • Linked Data is flexible enough to express entity- relationship relationships such as FRBR/FRAD that MARC struggles with • Oslo Public Library Pode project • Define relationships between different manifestations of a work • Allow patrons to either request any version a work or a specific manifestation
  16. 16. CONNECT DIFFERENT PARTS OF THE LIBRARY’S SYSTEM • Different parts of the library structure (ILS, ERMS, different databases, etc.) would be able to share data more easily, allowing searches to easily jump from one area to another • This is still a long way off
  17. 17. THE END
  18. 18. BIBLIOGRAPHY Baker, Thomas et all. ―Library Linked Data Incubator Group Final Report.‖ W3C Incubator Group Report. October 2011. Available at: http://www.w3.org/2005/Incubator/lld/XGR-lld-20111025/ Berners-Lee, Tim. ―Linked Data.‖ W3C. June 2009. Available at: http://www.w3.org/DesignIssues/LinkedData Bizer et all. ―Linked Data—The Story So Far.‖ International Journal on Semantic Web and Information Systems 5 (2009): 1-22. Chudnoy, Daniel. ―Libraries in Computers: What Linked Data is Missing.‖ Computers in Libraries 31 (2011): 35-36. Fox, Robert. ―Avoiding the Weak Link.‖ OCLC Systems & Services 27 (2011): 163-169. Miller, Eric, and Westfall, Micheline. ―Linked Data and Libraries.‖ The Serials Librarian 60 (2011): 17-22. Singer, Ross. ―Linked Library Data Now!‖ Journal of Electronic Resources Librarianship 21 (2009): 114-126. Wallis, Richard. ―Linked Data Applicable for Libraries.‖ Talis. Available at: http://consulting.talis.com/resources/presentations-from-linked-data-and- libraries-2011/ Westrum, Anne-Lena et all. ―Improving the Presentation of Library Data Using FRBR and Linked Data.‖ Code{4}Lib Journal 16 (2011): 1-7.

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