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Linked Data: What’s the Story?

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Roy Tennant, Senior Program Officer, OCLC Research

As library collections shift from print materials to digital formats, and as the web enables ubiquitous and instantaneous discovery of information, library users expect to find and access materials online. It’s not enough to have pages “on the web”; library data must be “woven into the web” and integrated into the sites and services that library users frequent daily – Google, Wikipedia, social networks. When information about a library’s collection is locked up behind a specific web site (such as an OPAC), it is often exceedingly difficult for services, such as search engines, to consume that data. Information seekers need to be connected back to their local library resources from wherever they are on the web. The imperative is to make library data available in new data formats that are native to the web, exposing it to the wider web community, making it easily discoverable by other sites, services, and ultimately consumers. Roy Tennant will shed light on what linked data is and how to re-envision, expose and share library data as entities that are part of the web.

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Linked Data: What’s the Story?

  1. 1. The world’s libraries. Connected. Roy Tennant Senior Program Officer, Research Linked Data: What’s the Story? Slides contributed by Bruce Washburn,Richard Wallis Karen Smith-Yoshimura, Dan Benson, and Mike Teets
  2. 2. The world’s libraries. Connected. Photo by Li Chen, https://www.flickr.com/photos/yiie/, CC BY 2.0 Generic License
  3. 3. The world’s libraries. Connected.
  4. 4. The world’s libraries. Connected. Photo by Pilot Theatre, https://www.flickr.com/photos/pilottheatre/, CC BY SA 2.0
  5. 5. The world’s libraries. Connected. The Canonical Entity (of the past)
  6. 6. The world’s libraries. Connected. The Canonical Entity (of the present)
  7. 7. The world’s libraries. Connected. • A collection of statements… • Taken from the piece itself… • Sometimes “enhanced” with inferred parentheticals (e.g., [1975] )… • Or additional statements not on the piece (e.g., subject headings) • Mostly uncontrolled and only loosely connected to anything else Classic Bib Record
  8. 8. The world’s libraries. Connected. The Problem
  9. 9. The world’s libraries. Connected. • Identification Problems: • “The Hamlet Problem” (titles aren’t enough) • “The Wang/Li/Zhang Problem” (names aren’t enough) • Linkage Problems: • “The Web Problem” (records aren’t enough, you need links) • “The Language Problem” (surfacing the right translation for a given user is still a problem) • Quality Problems: • Strings are not controlled terms; often, they cannot be turned into them Actually, A Number of Problems
  10. 10. The world’s libraries. Connected.
  11. 11. The world’s libraries. Connected.
  12. 12. The world’s libraries. Connected. The Solution
  13. 13. The world’s libraries. Connected. First, define ALL THE THINGS
  14. 14. entity / nt ti/ˈɛ ɪ noun a thing with distinct and independent existence. relationship /r le (ə)n p/ɪˈ ɪʃ ʃɪ noun the way in which two or more people or things are connected
  15. 15. Record Title: "War and Peace" Author: "Leo Tolstoy 1828- 1910" ISBN: 0307266931 Type: Work Name: "War and Peace" Author: http://worldcat.org/entity/person/id/1234 Entity (http://worldcat.org/entity/work/id/115206288) Type: Person Name: "Leo Tolstoy " Born: 1828 Died: 1910 Birthplace: http://worldcat.org/entity/place/id/8976 Entity (http://worldcat.org/entity/person/id/1234) Type: Place Name: "Yasnaya Polyana" SameAs: http://geonames.org/468686 Entity (http://worldcat.org/entity/place/id/8976) ⤵ ︎ ⤵ ︎ ⟶
  16. 16. The world’s libraries. Connected. From records to entities: Works
  17. 17. The world’s libraries. Connected. Entities of Core Concepts person place object concept organization work
  18. 18. The world’s libraries. Connected. Establishing Relationships Between Entities person place object concept organization work author subjectitem availability
  19. 19. The world’s libraries. Connected. Using authoritative sources whenever possible
  20. 20. The world’s libraries. Connected. And hooking up with other data sources
  21. 21. The world’s libraries. Connected.
  22. 22. The world’s libraries. Connected. OCLC Production Services External OCLC Research Systems Internal OCLC Research Resources enhanced WorldCat WORKS Kindred Works Classify Identities FictionFinder Cookbook Finder LCSH FAST VIAF GMGPC GSAFD GTT DDC LCTGM MeSH Linked Data Entities
  23. 23. The world’s libraries. Connected.
  24. 24. The world’s libraries. Connected. The Workinator
  25. 25. The world’s libraries. Connected. Some outcomes WorldCat Catalog: 15 billion triples WorldCat Works: 5 billion RDF triples DDC: 300 million triples VIAF: 2 billion triples FAST: 23 Million
  26. 26. The world’s libraries. Connected. OK… but so what?
  27. 27. The world’s libraries. Connected. Cataloging Integration with the web Cascading updates More options Intuitive searching Benefits for all library workflows
  28. 28. Improving Discovery The Name of the RoseThe Name of the Rose Summary: The year is 1327. Franciscans in a wealthy Italian abbey are suspected of heresy, and Brother William of Baskerville arrives to investigate. His delicate mission is suddenly overshadowed by seven bizarre deaths that take place in seven days and nights of apocalyptic terror. Subjects Borrowing Options eBooks | Printed Books | Audio Books Other Languages Monastic libraries -- Italy – Fiction | Semiotics -- Fiction
  29. 29. The world’s libraries. Connected.
  30. 30. The world’s libraries. Connected.
  31. 31. The world’s libraries. Connected.
  32. 32. The world’s libraries. Connected.
  33. 33. The world’s libraries. Connected.
  34. 34. The world’s libraries. Connected.
  35. 35. The world’s libraries. Connected.
  36. 36. The world’s libraries. Connected. Embedding Authority Control
  37. 37. The world’s libraries. Connected. Improving Cataloging • Improve data quality • Cascading updates • A new approach to cataloging: • Point and click cataloging • Managing entities instead of managing records • Consistent with RDA Photo by https://www.flickr.com/photos/97741188@N04/, CC BY 2.0
  38. 38. The world’s libraries. Connected. Title: Journey to the West Language: English Translator: Anthony C. Yu Date: 1977 IsTranslationOf: Title: Journey to the West Language: English Translator: Anthony C. Yu Date: 1977 IsTranslationOf: Title: 西遊記 Language: Chinese Author: 吳承恩 Created: 1592 HasTranslation: Title: 西遊記 Language: Chinese Author: 吳承恩 Created: 1592 HasTranslation:
  39. 39. The world’s libraries. Connected. Title: Journey to the West Language: English Translator: Anthony C. Yu Date: 1977 IsTranslationOf: Title: Journey to the West Language: English Translator: Anthony C. Yu Date: 1977 IsTranslationOf: Title: Journey to the West Language: English Translator: W. J. F. Jenner Date: 1982-1984 IsTranslationOf: Title: Journey to the West Language: English Translator: W. J. F. Jenner Date: 1982-1984 IsTranslationOf: Title: 西遊記 Language: Chinese Author: 吳承恩 Created: 1592 HasTranslation: Title: 西遊記 Language: Chinese Author: 吳承恩 Created: 1592 HasTranslation: Title: Tay du ký bình khảô Language: Vietnamese Translator: Phan Quan̂ Date: 1980 IsTranslationOf: Title: Tay du ký bình khảô Language: Vietnamese Translator: Phan Quan̂ Date: 1980 IsTranslationOf: Title: 西遊記 Language: Japanese Translator: 中野美代子 Date: 1986 IsTranslationOf: Title: 西遊記 Language: Japanese Translator: 中野美代子 Date: 1986 IsTranslationOf: Title: Pilgerfahrt Language: German Translator: Georgette Boner Date: 1983 IsTranslationOf: Title: Pilgerfahrt Language: German Translator: Georgette Boner Date: 1983 IsTranslationOf:
  40. 40. The world’s libraries. Connected.
  41. 41. The world’s libraries. Connected. The contents of the 245 $h
  42. 42. The world’s libraries. Connected.
  43. 43. The world’s libraries. Connected. Monthly Unique Visitors
  44. 44. The world’s libraries. Connected. • Requires a new kind of thinking: “sets of assertions about something” NOT a “record” • Assertions about an item can be dynamic • Authority control is built-in • Requires much more than simply translating a record from MARC to a new format It’s Not the Record, It’s the Linkage
  45. 45. The world’s libraries. Connected. For more information
  46. 46. The world’s libraries. Connected. Roy Tennant roytennant.com @rtennant facebook.com/roytennant/ tennantr@oclc.org Thank You!

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