OCLC Contactdag                                           Utrecht 2 October 2012The Simple Powerof the LinkRichard WallisT...
Linked DataThe world’s libraries. Connected.
Linked Data               •     What is Linked Data               •     Who is using it               •     What are the b...
Linked DataLinked Data
Linked Data   Linked DataBuilt on Semantic Web Standards
Linked Data      Linked Data  Built on Semantic Web StandardsAll about identifying and linking things                     ...
Identifying things
Identifying things
Identifying things                     1969-059A
Identifying things                        1969-059A              spacecraft/1969-059A
Identifying things                                 1969-059A                      spacecraft/1969-059Anasa.dataincubator.o...
Identifying things                                        1969-059A                             spacecraft/1969-059A      ...
Identifying things                  with URIs                                        1969-059A                            ...
Things have attributeshttp://nasa.dataincubator.org/spacecraft/1969-059A
Things have attributes http://nasa.dataincubator.org/spacecraft/1969-059A28801.0kg
Things have attributes http://nasa.dataincubator.org/spacecraft/1969-059A28801.0kgColumbia
Things have attributes http://nasa.dataincubator.org/spacecraft/1969-059A28801.0kgColumbiaApollo 11 CSMCSM-107United State...
http://nasa.dataincubator.org/spacecraft/1969-059A
.../                     1969-059Ahttp://nasa.dataincubator.org/spacecraft/1969-059A
28801.0                        .../                mass 1969-059Ahttp://nasa.dataincubator.org/spacecraft/1969-059A
Apollo 11 CSM      28801.0            name                        .../                  mass                     1969-059A...
Apollo 11 CSM               Columbia      28801.0            name   name                        .../                  mass...
Apollo 11 CSM               Columbia      28801.0            name   name                                          prefName...
Apollo 11 CSM                 Columbia      28801.0            name   name                                            pref...
Apollo 11 CSM                 Columbia      28801.0            name   name                                            pref...
Apollo 11 CSM                 Columbia      28801.0            name   name                                            pref...
Apollo 11 CSM                 Columbia      28801.0            name   name                                            pref...
RDF           Apollo 11 CSM                 Columbia      28801.0            name   name                                  ...
RDF                 Apollo 11 CSM                 Columbia            28801.0            name   name                      ...
RDF Triple
RDF TripleThing   attribute    value
RDF TripleThing   property     value
RDF TripleThing   property     valueThing   property     Thing
RDF Triple       Thing   property     value       Thing   property     Thing../person/A
RDF Triple      Thing             property   value      Thing             property   Thing../person/A hasParent
RDF Triple      Thing           property      value      Thing           property      Thing../person/A hasParent ../perso...
RDF Triple      Thing           property      value      Thing           property      Thing../person/A hasParent ../perso...
RDF Triple      Thing           property      value      Thing           property      Thing../person/A hasParent ../perso...
RDF Triple      Thing           property      value      Thing           property      Thing../person/A hasParent ../perso...
RDF Triple      Thing           property            value      Thing           property            Thing../person/A hasPar...
RDF Triple                      Merging      Thing           property            value      Thing           property      ...
RDF Triple Merging
RDF Triple             Merging The same identifier in a differentplace still identifies the same thing
Linked Data PrinciplesLinked Data Principles     The world’s libraries. Connected.
Linked Data PrinciplesLinked Data Principles 1. Use URIs as names for things     The world’s libraries. Connected.
Linked Data PrinciplesLinked Data Principles 1. Use URIs as names for things 2. Use HTTP URIs so people can look up those ...
Linked Data PrinciplesLinked Data Principles 1. Use URIs as names for things 2. Use HTTP URIs so people can look up those ...
Linked Data Principles Linked Data Principles   1. Use URIs as names for things   2. Use HTTP URIs so people can look up t...
http://www.flickr.com/photos/jolieodell/4540783805
http://www.flickr.com/photos/jolieodell/4540783805
Linked DataThe world’s libraries. Connected.
Linked DataVIAF  http://viaf.org  HTML, RDF/XML  License: ODC-BYDewey  http://dewey.info  HTML/RDFa, RDF/XML, Turtle, JSON...
Linked DataThe world’s libraries. Connected.
Linked Data            • 270+ Million resourcesThe world’s libraries. Connected.
Linked Data            • 270+ Million resources            • Schema.org + LibraryThe world’s libraries. Connected.
Linked Data            • 270+ Million resources            • Schema.org + Library            • Embedded RDFaThe world’s li...
Linked Data            •   270+ Million resources            •   Schema.org + Library            •   Embedded RDFa        ...
Linked Data            •   270+ Million resources            •   Schema.org + Library            •   Embedded RDFa        ...
Linked Data            •   270+ Million resources            •   Schema.org + Library            •   Embedded RDFa        ...
http://www.w3.org/community/schemabibex/
Linked Data             •    270+ Million resources             •    Schema.org + Library             •    Embedded RDFa  ...
Linked Data•   270+ Million resources                     Download file•   Schema.org + Library•   Embedded RDFa•   Links ...
Linked Data•   270+ Million resources                      Download file•   Schema.org + Library                        • ...
http://www.oclc.org/data/attribution.html
Linked DataThe world’s libraries. Connected.
Linked DataVIAF:               http://viaf.orgDewey:              http://dewey.infoFAST:                http://id.worldcat...
Linked Data Potential              http://en.wikipedia.org/wiki/File:North_Atlantic_Ocean_laea_relief_location_map.jpg
Linked Data Potential              http://en.wikipedia.org/wiki/File:North_Atlantic_Ocean_laea_relief_location_map.jpg
Linked Data Potential              http://en.wikipedia.org/wiki/File:North_Atlantic_Ocean_laea_relief_location_map.jpg
Linked Data Potential              http://en.wikipedia.org/wiki/File:North_Atlantic_Ocean_laea_relief_location_map.jpg
Linked Data Potential              http://en.wikipedia.org/wiki/File:North_Atlantic_Ocean_laea_relief_location_map.jpg
Linked Data Potential              http://en.wikipedia.org/wiki/File:North_Atlantic_Ocean_laea_relief_location_map.jpg
Linked Data Potential              http://en.wikipedia.org/wiki/File:North_Atlantic_Ocean_laea_relief_location_map.jpg
Linked Data Potential              http://en.wikipedia.org/wiki/File:North_Atlantic_Ocean_laea_relief_location_map.jpg
Linked Data Potential              http://en.wikipedia.org/wiki/File:North_Atlantic_Ocean_laea_relief_location_map.jpg
Linked Data Potential
Linked Data
RDF
RDF just anotheroutput format?
RDF just anotheroutput format?  initially - yes
RDFIdentifying & Linking
RDF Identifying & LinkingResources to Concepts
RDF Identifying & LinkingResources to Concepts            ../        res/12345
RDF Identifying & LinkingResources to ConceptsPlanning for Automation              ../                          name   res...
RDF Identifying & LinkingResources to Concepts                        typePlanning for Automation              ../        ...
RDF Identifying & LinkingResources to Concepts                        typePlanning for Automation              ../        ...
RDF Identifying & LinkingResources to Concepts                        typePlanning for Automation              ../        ...
RDF Identifying & LinkingResources to Concepts                           typePlanning for Automation                 ../  ...
RDF  Identifying & Linking Resources to Concepts                           type Planning for Automation                 .....
RDF      Identifying & Linking     Resources to Concepts                                                                  ...
RDF      Identifying & Linking     Resources to Concepts                                                                  ...
RDFWhere has the record gone?
RDF    Where has the record gone?What next for cataloguing?
Stop CopyingStart Linking          http://www.flickr.com/photos/24736216@N07/6153313394/
Stop CopyingStart LinkingBe of the Web!          http://www.flickr.com/photos/24736216@N07/6153313394/
OCLC Contactdag                                           Utrecht 2 October 2012The Simple Powerof the LinkRichard WallisT...
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The Simple Power of the Link

  1. 1. OCLC Contactdag Utrecht 2 October 2012The Simple Powerof the LinkRichard WallisTechnology EvangelistOCLC@rjw The world’s libraries. Connected.
  2. 2. Linked DataThe world’s libraries. Connected.
  3. 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. 4. Linked DataLinked Data
  5. 5. Linked Data Linked DataBuilt on Semantic Web Standards
  6. 6. Linked Data Linked Data Built on Semantic Web StandardsAll about identifying and linking things Th ing
  7. 7. Identifying things
  8. 8. Identifying things
  9. 9. Identifying things 1969-059A
  10. 10. Identifying things 1969-059A spacecraft/1969-059A
  11. 11. Identifying things 1969-059A spacecraft/1969-059Anasa.dataincubator.org/spacecraft/1969-059A
  12. 12. Identifying things 1969-059A spacecraft/1969-059A nasa.dataincubator.org/spacecraft/1969-059Ahttp://nasa.dataincubator.org/spacecraft/1969-059A
  13. 13. Identifying things with URIs 1969-059A spacecraft/1969-059A nasa.dataincubator.org/spacecraft/1969-059Ahttp://nasa.dataincubator.org/spacecraft/1969-059A
  14. 14. Things have attributeshttp://nasa.dataincubator.org/spacecraft/1969-059A
  15. 15. Things have attributes http://nasa.dataincubator.org/spacecraft/1969-059A28801.0kg
  16. 16. Things have attributes http://nasa.dataincubator.org/spacecraft/1969-059A28801.0kgColumbia
  17. 17. Things have attributes http://nasa.dataincubator.org/spacecraft/1969-059A28801.0kgColumbiaApollo 11 CSMCSM-107United StatesCape CanaveralSaturn 5
  18. 18. http://nasa.dataincubator.org/spacecraft/1969-059A
  19. 19. .../ 1969-059Ahttp://nasa.dataincubator.org/spacecraft/1969-059A
  20. 20. 28801.0 .../ mass 1969-059Ahttp://nasa.dataincubator.org/spacecraft/1969-059A
  21. 21. Apollo 11 CSM 28801.0 name .../ mass 1969-059Ahttp://nasa.dataincubator.org/spacecraft/1969-059A
  22. 22. Apollo 11 CSM Columbia 28801.0 name name .../ mass 1969-059Ahttp://nasa.dataincubator.org/spacecraft/1969-059A
  23. 23. Apollo 11 CSM Columbia 28801.0 name name prefName .../ mass 1969-059Ahttp://nasa.dataincubator.org/spacecraft/1969-059A
  24. 24. Apollo 11 CSM Columbia 28801.0 name name prefName .../ mass 1969-059Ahttp://nasa.dataincubator.org/spacecraft/1969-059A launch ../ launch/ 1969-059
  25. 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. 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. 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. 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. 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. 30. RDF Triple
  31. 31. RDF TripleThing attribute value
  32. 32. RDF TripleThing property value
  33. 33. RDF TripleThing property valueThing property Thing
  34. 34. RDF Triple Thing property value Thing property Thing../person/A
  35. 35. RDF Triple Thing property value Thing property Thing../person/A hasParent
  36. 36. RDF Triple Thing property value Thing property Thing../person/A hasParent ../person/B
  37. 37. RDF Triple Thing property value Thing property Thing../person/A hasParent ../person/B../person/B
  38. 38. RDF Triple Thing property value Thing property Thing../person/A hasParent ../person/B../person/B name
  39. 39. RDF Triple Thing property value Thing property Thing../person/A hasParent ../person/B../person/B name “Eric”
  40. 40. RDF Triple Thing property value Thing property Thing../person/A hasParent ../person/B ../person/B name “Eric”
  41. 41. RDF Triple Merging Thing property value Thing property Thing../person/A hasParent ../person/B name “Eric”
  42. 42. RDF Triple Merging
  43. 43. RDF Triple Merging The same identifier in a differentplace still identifies the same thing
  44. 44. Linked Data PrinciplesLinked Data Principles The world’s libraries. Connected.
  45. 45. Linked Data PrinciplesLinked Data Principles 1. Use URIs as names for things The world’s libraries. Connected.
  46. 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. 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. 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. 49. http://www.flickr.com/photos/jolieodell/4540783805
  50. 50. http://www.flickr.com/photos/jolieodell/4540783805
  51. 51. Linked DataThe world’s libraries. Connected.
  52. 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. 53. Linked DataThe world’s libraries. Connected.
  54. 54. Linked Data • 270+ Million resourcesThe world’s libraries. Connected.
  55. 55. Linked Data • 270+ Million resources • Schema.org + LibraryThe world’s libraries. Connected.
  56. 56. Linked Data • 270+ Million resources • Schema.org + Library • Embedded RDFaThe world’s libraries. Connected.
  57. 57. Linked Data • 270+ Million resources • Schema.org + Library • Embedded RDFa • Links to: Dewey, LCSH LCNAF, DOI, VIAF, FASTThe world’s libraries. Connected.
  58. 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. 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. 60. http://www.w3.org/community/schemabibex/
  61. 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. 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. 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. 64. http://www.oclc.org/data/attribution.html
  65. 65. Linked DataThe world’s libraries. Connected.
  66. 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. 67. Linked Data Potential http://en.wikipedia.org/wiki/File:North_Atlantic_Ocean_laea_relief_location_map.jpg
  68. 68. Linked Data Potential http://en.wikipedia.org/wiki/File:North_Atlantic_Ocean_laea_relief_location_map.jpg
  69. 69. Linked Data Potential http://en.wikipedia.org/wiki/File:North_Atlantic_Ocean_laea_relief_location_map.jpg
  70. 70. Linked Data Potential http://en.wikipedia.org/wiki/File:North_Atlantic_Ocean_laea_relief_location_map.jpg
  71. 71. Linked Data Potential http://en.wikipedia.org/wiki/File:North_Atlantic_Ocean_laea_relief_location_map.jpg
  72. 72. Linked Data Potential http://en.wikipedia.org/wiki/File:North_Atlantic_Ocean_laea_relief_location_map.jpg
  73. 73. Linked Data Potential http://en.wikipedia.org/wiki/File:North_Atlantic_Ocean_laea_relief_location_map.jpg
  74. 74. Linked Data Potential http://en.wikipedia.org/wiki/File:North_Atlantic_Ocean_laea_relief_location_map.jpg
  75. 75. Linked Data Potential http://en.wikipedia.org/wiki/File:North_Atlantic_Ocean_laea_relief_location_map.jpg
  76. 76. Linked Data Potential
  77. 77. Linked Data
  78. 78. RDF
  79. 79. RDF just anotheroutput format?
  80. 80. RDF just anotheroutput format? initially - yes
  81. 81. RDFIdentifying & Linking
  82. 82. RDF Identifying & LinkingResources to Concepts
  83. 83. RDF Identifying & LinkingResources to Concepts ../ res/12345
  84. 84. RDF Identifying & LinkingResources to ConceptsPlanning for Automation ../ name res/12345
  85. 85. RDF Identifying & LinkingResources to Concepts typePlanning for Automation ../ schema:Book name res/12345
  86. 86. RDF Identifying & LinkingResources to Concepts typePlanning for Automation ../ schema:Book name res/12345 author viaf.org/ abc
  87. 87. RDF Identifying & LinkingResources to Concepts typePlanning for Automation ../ schema:Book name res/12345 author John M Cohn viaf.org/ abc name
  88. 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. 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. 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. 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. 92. RDFWhere has the record gone?
  93. 93. RDF Where has the record gone?What next for cataloguing?
  94. 94. Stop CopyingStart Linking http://www.flickr.com/photos/24736216@N07/6153313394/
  95. 95. Stop CopyingStart LinkingBe of the Web! http://www.flickr.com/photos/24736216@N07/6153313394/
  96. 96. OCLC Contactdag Utrecht 2 October 2012The Simple Powerof the LinkRichard WallisTechnology EvangelistOCLC@rjw The world’s libraries. Connected.
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