The Simple Power of the Link

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Version of presentation for OCLC Contactdag in 
Utrecht 2 October 2012
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Version of presentation for OCLC Contactdag in 
Utrecht 2 October 2012
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#OCLC_NL

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  • 1. OCLC Contactdag Utrecht 2 October 2012The Simple Powerof the LinkRichard WallisTechnology EvangelistOCLC@rjw The world’s libraries. Connected.
  • 2. Linked DataThe world’s libraries. Connected.
  • 3. Linked Data • What is Linked Data • Who is using it • What are the benets • OCLC and Linked DataThe world’s libraries. Connected.
  • 4. Linked DataLinked Data
  • 5. Linked Data Linked DataBuilt on Semantic Web Standards
  • 6. Linked Data Linked Data Built on Semantic Web StandardsAll about identifying and linking things Th ing
  • 7. Identifying things
  • 8. Identifying things
  • 9. Identifying things 1969-059A
  • 10. Identifying things 1969-059A spacecraft/1969-059A
  • 11. Identifying things 1969-059A spacecraft/1969-059Anasa.dataincubator.org/spacecraft/1969-059A
  • 12. Identifying things 1969-059A spacecraft/1969-059A nasa.dataincubator.org/spacecraft/1969-059Ahttp://nasa.dataincubator.org/spacecraft/1969-059A
  • 13. Identifying things with URIs 1969-059A spacecraft/1969-059A nasa.dataincubator.org/spacecraft/1969-059Ahttp://nasa.dataincubator.org/spacecraft/1969-059A
  • 14. Things have attributeshttp://nasa.dataincubator.org/spacecraft/1969-059A
  • 15. Things have attributes http://nasa.dataincubator.org/spacecraft/1969-059A28801.0kg
  • 16. Things have attributes http://nasa.dataincubator.org/spacecraft/1969-059A28801.0kgColumbia
  • 17. Things have attributes http://nasa.dataincubator.org/spacecraft/1969-059A28801.0kgColumbiaApollo 11 CSMCSM-107United StatesCape CanaveralSaturn 5
  • 18. http://nasa.dataincubator.org/spacecraft/1969-059A
  • 19. .../ 1969-059Ahttp://nasa.dataincubator.org/spacecraft/1969-059A
  • 20. 28801.0 .../ mass 1969-059Ahttp://nasa.dataincubator.org/spacecraft/1969-059A
  • 21. Apollo 11 CSM 28801.0 name .../ mass 1969-059Ahttp://nasa.dataincubator.org/spacecraft/1969-059A
  • 22. Apollo 11 CSM Columbia 28801.0 name name .../ mass 1969-059Ahttp://nasa.dataincubator.org/spacecraft/1969-059A
  • 23. Apollo 11 CSM Columbia 28801.0 name name prefName .../ mass 1969-059Ahttp://nasa.dataincubator.org/spacecraft/1969-059A
  • 24. Apollo 11 CSM Columbia 28801.0 name name prefName .../ mass 1969-059Ahttp://nasa.dataincubator.org/spacecraft/1969-059A launch ../ launch/ 1969-059
  • 25. Apollo 11 CSM Columbia 28801.0 name name prefName .../ mass 1969-059Ahttp://nasa.dataincubator.org/spacecraft/1969-059A 16 July 1969 launch ../ date launch/ 1969-059
  • 26. Apollo 11 CSM Columbia 28801.0 name name prefName .../ mass 1969-059Ahttp://nasa.dataincubator.org/spacecraft/1969-059A 16 July 1969 launch ../ date launch/ 1969-059 site Cape Canaveral
  • 27. Apollo 11 CSM Columbia 28801.0 name name prefName .../ mass 1969-059Ahttp://nasa.dataincubator.org/spacecraft/1969-059A 16 July 1969 launch ../ date launch/ 1969-059 site Cape Canaveral lat N 28° 27 31 long W 80° 31 59
  • 28. RDF Apollo 11 CSM Columbia 28801.0 name name prefName .../ mass 1969-059Ahttp://nasa.dataincubator.org/spacecraft/1969-059A 16 July 1969 launch ../ date launch/ 1969-059 site Cape Canaveral lat N 28° 27 31 long W 80° 31 59
  • 29. RDF Apollo 11 CSM Columbia 28801.0 name name prefName .../ mass 1969-059A http://nasa.dataincubator.org/spacecraft/1969-059A 16 July 1969 launch ../ date launch/<../1969-059A> mass 28801.0 . 1969-059<../1969-059A> name “Apollo 11 CSM” . site<../1969-059A> name “Columbia” . Cape<../1969-059A> prefName “Columbia” . Canaveral lat<../1969-059A> launch <../launch/1969-059> .<../launch/1969-059> date 1969-07-16 . N 28° 27 31<../launch/1969-059> site <..site/capecanaveral> . long<..site/capecanaveral> lat “N 28° 27 31” . W 80° 31 59<..site/capecanaveral> long “W 80° 31 59” .
  • 30. RDF Triple
  • 31. RDF TripleThing attribute value
  • 32. RDF TripleThing property value
  • 33. RDF TripleThing property valueThing property Thing
  • 34. RDF Triple Thing property value Thing property Thing../person/A
  • 35. RDF Triple Thing property value Thing property Thing../person/A hasParent
  • 36. RDF Triple Thing property value Thing property Thing../person/A hasParent ../person/B
  • 37. RDF Triple Thing property value Thing property Thing../person/A hasParent ../person/B../person/B
  • 38. RDF Triple Thing property value Thing property Thing../person/A hasParent ../person/B../person/B name
  • 39. RDF Triple Thing property value Thing property Thing../person/A hasParent ../person/B../person/B name “Eric”
  • 40. RDF Triple Thing property value Thing property Thing../person/A hasParent ../person/B ../person/B name “Eric”
  • 41. RDF Triple Merging Thing property value Thing property Thing../person/A hasParent ../person/B name “Eric”
  • 42. RDF Triple Merging
  • 43. RDF Triple Merging The same identifier in a differentplace still identifies the same thing
  • 44. Linked Data PrinciplesLinked Data Principles The world’s libraries. Connected.
  • 45. Linked Data PrinciplesLinked Data Principles 1. Use URIs as names for things The world’s libraries. Connected.
  • 46. Linked Data PrinciplesLinked Data Principles 1. Use URIs as names for things 2. Use HTTP URIs so people can look up those names The world’s libraries. Connected.
  • 47. Linked Data PrinciplesLinked Data Principles 1. Use URIs as names for things 2. Use HTTP URIs so people can look up those names 3. When someone looks up a URI, provide useful information, using the standards - RDF The world’s libraries. Connected.
  • 48. Linked Data Principles Linked Data Principles 1. Use URIs as names for things 2. Use HTTP URIs so people can look up those names 3. When someone looks up a URI, provide useful information, using the standards - RDF 4. Include links to other URIs, so that they can discover moreTim Berners-Lee - 2006 The world’s libraries. Connected.
  • 49. http://www.flickr.com/photos/jolieodell/4540783805
  • 50. http://www.flickr.com/photos/jolieodell/4540783805
  • 51. Linked DataThe world’s libraries. Connected.
  • 52. Linked DataVIAF http://viaf.org HTML, RDF/XML License: ODC-BYDewey http://dewey.info HTML/RDFa, RDF/XML, Turtle, JSON - SPARQL License: CC BY-NC-NDFAST http://id.worldcat.org/fast HTML, RDF/XML - Download License: ODC-BYThe world’s libraries. Connected.
  • 53. Linked DataThe world’s libraries. Connected.
  • 54. Linked Data • 270+ Million resourcesThe world’s libraries. Connected.
  • 55. Linked Data • 270+ Million resources • Schema.org + LibraryThe world’s libraries. Connected.
  • 56. Linked Data • 270+ Million resources • Schema.org + Library • Embedded RDFaThe world’s libraries. Connected.
  • 57. Linked Data • 270+ Million resources • Schema.org + Library • Embedded RDFa • Links to: Dewey, LCSH LCNAF, DOI, VIAF, FASTThe world’s libraries. Connected.
  • 58. Linked Data • 270+ Million resources • Schema.org + Library • Embedded RDFa • Links to: Dewey, LCSH LCNAF, DOI, VIAF, FAST • License: ODC-BYThe world’s libraries. Connected.
  • 59. Linked Data • 270+ Million resources • Schema.org + Library • Embedded RDFa • Links to: Dewey, LCSH LCNAF, DOI, VIAF, FAST • License: ODC-BY • Experimental - June 2012The world’s libraries. Connected.
  • 60. http://www.w3.org/community/schemabibex/
  • 61. Linked Data • 270+ Million resources • Schema.org + Library • Embedded RDFa • Links to: Dewey, LCSH LCNAF, DOI, VIAF, FAST • License: ODC-BY • Experimental - June 2012The world’s libraries. Connected.
  • 62. Linked Data• 270+ Million resources Download file• Schema.org + Library• Embedded RDFa• Links to: Dewey, LCSH LCNAF, DOI, VIAF, FAST• License: ODC-BY• Experimental - June 2012 The world’s libraries. Connected.
  • 63. Linked Data• 270+ Million resources Download file• Schema.org + Library • Most widely held works (250+ holdings)• Embedded RDFa • 1.2 Million resources• Links to: Dewey, LCSH (80 million triples) LCNAF, DOI, VIAF, FAST • Schema.org + Library• License: ODC-BY • License: ODC-BY• Experimental - June 2012 • August 2012 http://worldcat.org http://purl.oclc.org/dataset/WorldCat The world’s libraries. Connected.
  • 64. http://www.oclc.org/data/attribution.html
  • 65. Linked DataThe world’s libraries. Connected.
  • 66. Linked DataVIAF: http://viaf.orgDewey: http://dewey.infoFAST: http://id.worldcat.org/fastWorldCat: http://www.worldcat.orgWorldCat Most Widely Held Download: http://purl.oclc.org/dataset/WorldCatMostHighlyHeldODC-BY Attribution Guidelines: http://www.oclc.org/data/attribution.html The world’s libraries. Connected. data@oclc.org
  • 67. Linked Data Potential http://en.wikipedia.org/wiki/File:North_Atlantic_Ocean_laea_relief_location_map.jpg
  • 68. Linked Data Potential http://en.wikipedia.org/wiki/File:North_Atlantic_Ocean_laea_relief_location_map.jpg
  • 69. Linked Data Potential http://en.wikipedia.org/wiki/File:North_Atlantic_Ocean_laea_relief_location_map.jpg
  • 70. Linked Data Potential http://en.wikipedia.org/wiki/File:North_Atlantic_Ocean_laea_relief_location_map.jpg
  • 71. Linked Data Potential http://en.wikipedia.org/wiki/File:North_Atlantic_Ocean_laea_relief_location_map.jpg
  • 72. Linked Data Potential http://en.wikipedia.org/wiki/File:North_Atlantic_Ocean_laea_relief_location_map.jpg
  • 73. Linked Data Potential http://en.wikipedia.org/wiki/File:North_Atlantic_Ocean_laea_relief_location_map.jpg
  • 74. Linked Data Potential http://en.wikipedia.org/wiki/File:North_Atlantic_Ocean_laea_relief_location_map.jpg
  • 75. Linked Data Potential http://en.wikipedia.org/wiki/File:North_Atlantic_Ocean_laea_relief_location_map.jpg
  • 76. Linked Data Potential
  • 77. Linked Data
  • 78. RDF
  • 79. RDF just anotheroutput format?
  • 80. RDF just anotheroutput format? initially - yes
  • 81. RDFIdentifying & Linking
  • 82. RDF Identifying & LinkingResources to Concepts
  • 83. RDF Identifying & LinkingResources to Concepts ../ res/12345
  • 84. RDF Identifying & LinkingResources to ConceptsPlanning for Automation ../ name res/12345
  • 85. RDF Identifying & LinkingResources to Concepts typePlanning for Automation ../ schema:Book name res/12345
  • 86. RDF Identifying & LinkingResources to Concepts typePlanning for Automation ../ schema:Book name res/12345 author viaf.org/ abc
  • 87. RDF Identifying & LinkingResources to Concepts typePlanning for Automation ../ schema:Book name res/12345 author John M Cohn viaf.org/ abc name
  • 88. RDF Identifying & LinkingResources to Concepts typePlanning for Automation ../ schema:Book name res/12345 author about John M Cohn loc.gov/ viaf.org/ auth/sh8507 abc name
  • 89. RDF Identifying & Linking Resources to Concepts type Planning for Automation ../ schema:Book name res/12345 author about John M Cohnname viaf.org/ loc.gov/ auth/sh8507 abc name Libraries
  • 90. RDF Identifying & Linking Resources to Concepts type Planning for Automation ../ schema:Book name res/12345 author about John M Cohn name loc.gov/ viaf.org/ auth/sh8507 abc name Libraries<http://lib.org/res/1234> name "Planning for Automation" .<http://lib.org/res/1234> schema:type schema:Book .<http://lib.org/res/1234> schema:author <http://viaf.org/abc> .<http://lib.org/res/1234> schema:about <http://loc.gov/authorities/sh8570>
  • 91. RDF Identifying & Linking Resources to Concepts type Planning for Automation ../ schema:Book name res/12345 author about John M Cohn name loc.gov/ viaf.org/ auth/sh8507 abc name Libraries<http://lib.org/res/1234> name "Planning for Automation" .<http://lib.org/res/1234> schema:type schema:Book .<http://lib.org/res/1234> schema:author <http://viaf.org/abc> .<http://lib.org/res/1234> schema:about <http://loc.gov/authorities/sh8570> Where has the record gone?
  • 92. RDFWhere has the record gone?
  • 93. RDF Where has the record gone?What next for cataloguing?
  • 94. Stop CopyingStart Linking http://www.flickr.com/photos/24736216@N07/6153313394/
  • 95. Stop CopyingStart LinkingBe of the Web! http://www.flickr.com/photos/24736216@N07/6153313394/
  • 96. OCLC Contactdag Utrecht 2 October 2012The Simple Powerof the LinkRichard WallisTechnology EvangelistOCLC@rjw The world’s libraries. Connected.