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Metadata in the age of data curation and linked data


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What is the role of Linked Data in libraries? What have libraries done, and what more could they do?

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Metadata in the age of data curation and linked data

  1. 1. Metadata in the Age of Data Curation and Linked Data RYAN E. JOHNSON UCSD, 3/17/2014
  2. 2. Thank you! (Spring time in Syracuse)
  3. 3. The Topic:  In the age of data curation, there are many new developments in metadata. Talk about how controlled vocabulary authorities and linked data resources impact the management and functionality of digital objects.
  4. 4. The Age of Data Curation (Welcome!)  Data curation: Maintaining data throughout its lifecycle  Data possibilities: Analysis, data reuse, data mining, preservation, discovery  These needs drive new approaches to metadata
  5. 5. From Linked Data to Libraries Tim Berners-Lee Inventor, World Wide Web Created concept of Linked Data Kingsley Idehen CEO, OpenLink Software Open Linked Data Expert Karen Coyle Librarian, Consultant Strategizes library Linked Data
  6. 6. Linked Data is Everything  Tim Berners-Lee: Linked Data is “Everything you can think about”  “Things” are entities, links express relationships to other things  Kingsley Idehen: “The most basic unit of Linked Data value is the hyperlink” [an http URI, aka URL]
  7. 7. What are Libraries Doing About Linked Data?  WorldCat implemented Linked Data in millions of its records in 2012, using
  8. 8. Controlled Vocabulary Authorities  The VIAF makes international authority control possible, links with Wikipedia: 18.4m name records as of 2011  LCSH, LC Names, and LCC now served up as URIs, links to VIAF, then Wikipedia, DBPedia, Freebase
  9. 9. What are the Impacts?  Metadata has made both humans and computers discover relationships between objects, entities  Huge aggregators (OCLC, DPLA, Europeana) connect hubs, less redundancy of objects needed  Metadata and data curation occurs as early in data lifecycle as possible
  10. 10. Huge Impact: Serendipity via "Follow Your Nose" Browsing DPLA Search "langston hughes" DPLA Results Find a Southern Cal. mural USC Collections Can see the object and metadata
  11. 11. What Else Could Libraries Do?  Harness structured data to provide Google Rich Snippets, Twitter Cards (where users are)  Imagine Linked Data creation within a small scale implementation; create tools  Find a way to increase incentives for researchers to curate, describe, and preserve their research data  Continue to iterate BIBFRAME and RDA to be data friendly
  12. 12. Acknowledgements  Karen Coyle: "Linked Data First Steps and Catch-21" Blog post, "Library Linked Data: an evolution"  Tim Berners-Lee: "The Next Web" TED Talk  Kingsley Idehen: "Linked Data Follow Your Nose Browsing" Google+ post  Thanks to the DPLA, USC Collections, Library of Congress