the simple power of the link
DESCRIPTION
Version of presentation for OCLC Contactdag in Utrecht 2 October 2012 . #OCLC_NLTRANSCRIPT
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The world’s libraries. Connected.
The Simple Power of the Link
Richard Wallis
Technology EvangelistOCLC
@rjw
OCLC ContactdagUtrecht 2 October 2012
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The world’s libraries. Connected.
Linked Data
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The world’s libraries. Connected.
Linked Data
• What is Linked Data
• Who is using it
• What are the benets
• OCLC and Linked Data
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Linked DataLinked Data
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Linked Data
Built on Semantic Web Standards
Linked Data
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Linked Data
Built on Semantic Web Standards
All about identifying and linking things
Linked Data
Thing
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Identifying things
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Identifying things
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Identifying things
1969-059A
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Identifying things
spacecraft/1969-059A
1969-059A
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Identifying things
spacecraft/1969-059A
nasa.dataincubator.org/spacecraft/1969-059A
1969-059A
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Identifying things
spacecraft/1969-059A
nasa.dataincubator.org/spacecraft/1969-059A
http://nasa.dataincubator.org/spacecraft/1969-059A
1969-059A
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Identifying things
spacecraft/1969-059A
nasa.dataincubator.org/spacecraft/1969-059A
http://nasa.dataincubator.org/spacecraft/1969-059A
1969-059A
with URIs
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Things have attributeshttp://nasa.dataincubator.org/spacecraft/1969-059A
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Things have attributeshttp://nasa.dataincubator.org/spacecraft/1969-059A
28801.0kg
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Things have attributeshttp://nasa.dataincubator.org/spacecraft/1969-059A
28801.0kg
Columbia
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Things have attributeshttp://nasa.dataincubator.org/spacecraft/1969-059A
28801.0kg
Columbia
Apollo 11 CSM
CSM-107
United States
Cape Canaveral
Saturn 5
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http://nasa.dataincubator.org/spacecraft/1969-059A
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.../1969-059Ahttp://nasa.dataincubator.org/spacecraft/1969-059A
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⤵mass
28801.0.../
1969-059Ahttp://nasa.dataincubator.org/spacecraft/1969-059A
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⤵mass
28801.0
Apollo 11 CSM
⤵name.../
1969-059Ahttp://nasa.dataincubator.org/spacecraft/1969-059A
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⤵mass
28801.0
Apollo 11 CSM
⤵Columbia⤵
name name
.../1969-059Ahttp://nasa.dataincubator.org/spacecraft/1969-059A
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⤵⤵mass
28801.0
Apollo 11 CSM
⤵Columbia⤵
name name
.../1969-059A
prefName
http://nasa.dataincubator.org/spacecraft/1969-059A
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⤵⤵⤵mass
28801.0
Apollo 11 CSM
⤵Columbia⤵
name name
launch
.../1969-059A
../launch/
1969-059
prefName
http://nasa.dataincubator.org/spacecraft/1969-059A
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⤵⤵⤵mass
28801.0
Apollo 11 CSM
⤵Columbia⤵
name name
launch16 July 1969⤵date
.../1969-059A
../launch/
1969-059
prefName
http://nasa.dataincubator.org/spacecraft/1969-059A
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⤵⤵⤵mass
28801.0
Apollo 11 CSM
⤵Columbia⤵
name name
launch16 July 1969⤵date
⤵site
.../1969-059A
../launch/
1969-059
Cape Canaveral
prefName
http://nasa.dataincubator.org/spacecraft/1969-059A
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⤵⤵⤵mass
28801.0
Apollo 11 CSM
⤵Columbia⤵
name name
launch16 July 1969⤵date
⤵site
N 28° 27' 31''
W 80° 31' 59''
⤵⤵lat
long
.../1969-059A
../launch/
1969-059
Cape Canaveral
prefName
http://nasa.dataincubator.org/spacecraft/1969-059A
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⤵⤵⤵mass
28801.0
Apollo 11 CSM
⤵Columbia⤵
name name
launch16 July 1969⤵date
⤵site
RDF
N 28° 27' 31''
W 80° 31' 59''
⤵⤵lat
long
.../1969-059A
../launch/
1969-059
Cape Canaveral
prefName
http://nasa.dataincubator.org/spacecraft/1969-059A
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⤵⤵⤵mass
28801.0
Apollo 11 CSM
⤵Columbia⤵
name name
launch16 July 1969⤵date
⤵site
RDF
N 28° 27' 31''
W 80° 31' 59''
⤵⤵lat
long
.../1969-059A
../launch/
1969-059
Cape Canaveral
<../1969-059A> mass 28801.0 .<../1969-059A> name “Apollo 11 CSM” .<../1969-059A> name “Columbia” .<../1969-059A> prefName “Columbia” .<../1969-059A> launch <../launch/1969-059> .<../launch/1969-059> date 1969-07-16 .<../launch/1969-059> site <..site/capecanaveral> .<..site/capecanaveral> lat “N 28° 27' 31''” .<..site/capecanaveral> long “W 80° 31' 59''” .
prefName
http://nasa.dataincubator.org/spacecraft/1969-059A
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RDF Triple
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RDF Triple
Thing attribute value
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property
RDF Triple
Thing value
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property
RDF Triple
Thing value
Thing property Thing
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property
RDF Triple
Thing value
Thing property Thing
../person/A
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property
RDF Triple
Thing value
Thing property Thing
../person/A hasParent
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property
RDF Triple
Thing value
Thing property Thing
../person/B../person/A hasParent
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property
RDF Triple
Thing value
Thing property Thing
../person/B
../person/B
../person/A hasParent
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property
RDF Triple
Thing value
Thing property Thing
../person/B
name../person/B
../person/A hasParent
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property
“Eric”
RDF Triple
Thing value
Thing property Thing
../person/B
name../person/B
../person/A hasParent
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property
“Eric”
RDF Triple
Thing value
Thing property Thing
../person/B
name../person/B
../person/A hasParent
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property
“Eric”
RDF Triple
Thing value
Thing property Thing
name../person/B../person/A hasParent
Merging
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RDF TripleMerging
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RDF TripleMerging
The same identifier in a different place still identifies the same thing
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The world’s libraries. Connected.
Linked Data PrinciplesLinked Data Principles
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The world’s libraries. Connected.
Linked Data PrinciplesLinked Data Principles
1. Use URIs as names for things
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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 names
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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 names
3. When someone looks up a URI, provide useful information, using the standards - RDF
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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 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 more
Tim Berners-Lee - 2006
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http://www.flickr.com/photos/jolieodell/4540783805
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http://www.flickr.com/photos/jolieodell/4540783805
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The world’s libraries. Connected.
Linked Data
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The world’s libraries. Connected.
Linked DataVIAF
http://viaf.orgHTML, RDF/XMLLicense: ODC-BY
Deweyhttp://dewey.infoHTML/RDFa, RDF/XML, Turtle, JSON - SPARQLLicense: CC BY-NC-ND
FASThttp://id.worldcat.org/fastHTML, RDF/XML - DownloadLicense: ODC-BY
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The world’s libraries. Connected.
Linked Data
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The world’s libraries. Connected.
Linked Data• 270+ Million resources
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The world’s libraries. Connected.
Linked Data• 270+ Million resources• Schema.org + Library
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The world’s libraries. Connected.
Linked Data• 270+ Million resources• Schema.org + Library• Embedded RDFa
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The world’s libraries. Connected.
Linked Data• 270+ Million resources• Schema.org + Library• Embedded RDFa• Links to: Dewey, LCSH
LCNAF, DOI, VIAF, FAST
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The world’s libraries. Connected.
Linked Data• 270+ Million resources• Schema.org + Library• Embedded RDFa• Links to: Dewey, LCSH
LCNAF, DOI, VIAF, FAST• License: ODC-BY
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The world’s libraries. Connected.
Linked Data• 270+ Million resources• Schema.org + Library• Embedded RDFa• Links to: Dewey, LCSH
LCNAF, DOI, VIAF, FAST• License: ODC-BY• Experimental - June 2012
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http://www.w3.org/community/schemabibex/
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The world’s libraries. Connected.
Linked Data• 270+ Million resources• Schema.org + Library• Embedded RDFa• Links to: Dewey, LCSH
LCNAF, DOI, VIAF, FAST• License: ODC-BY• Experimental - June 2012
![Page 116: The Simple Power of the Link](https://reader038.vdocument.in/reader038/viewer/2022110115/54c65f394a795940598b4618/html5/thumbnails/116.jpg)
Download file
The world’s libraries. Connected.
Linked Data• 270+ Million resources• Schema.org + Library• Embedded RDFa• Links to: Dewey, LCSH
LCNAF, DOI, VIAF, FAST• License: ODC-BY• Experimental - June 2012
![Page 117: The Simple Power of the Link](https://reader038.vdocument.in/reader038/viewer/2022110115/54c65f394a795940598b4618/html5/thumbnails/117.jpg)
Download file• Most widely held works
(250+ holdings)
• 1.2 Million resources(80 million triples)
• Schema.org + Library• License: ODC-BY• August 2012
The world’s libraries. Connected.
Linked Data• 270+ Million resources• Schema.org + Library• Embedded RDFa• Links to: Dewey, LCSH
LCNAF, DOI, VIAF, FAST• License: ODC-BY• Experimental - June 2012
http://worldcat.org http://purl.oclc.org/dataset/WorldCat
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http://www.oclc.org/data/attribution.html
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The world’s libraries. Connected.
Linked Data
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The world’s libraries. Connected.
Linked DataVIAF: http://viaf.org
Dewey: http://dewey.info
FAST: http://id.worldcat.org/fast
WorldCat: http://www.worldcat.org
WorldCat Most Widely Held Download: http://purl.oclc.org/dataset/WorldCatMostHighlyHeld
ODC-BY Attribution Guidelines: http://www.oclc.org/data/attribution.html
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http://en.wikipedia.org/wiki/File:North_Atlantic_Ocean_laea_relief_location_map.jpg
Linked Data Potential
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http://en.wikipedia.org/wiki/File:North_Atlantic_Ocean_laea_relief_location_map.jpg
Linked Data Potential
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http://en.wikipedia.org/wiki/File:North_Atlantic_Ocean_laea_relief_location_map.jpg
Linked Data Potential
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http://en.wikipedia.org/wiki/File:North_Atlantic_Ocean_laea_relief_location_map.jpg
Linked Data Potential
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http://en.wikipedia.org/wiki/File:North_Atlantic_Ocean_laea_relief_location_map.jpg
Linked Data Potential
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http://en.wikipedia.org/wiki/File:North_Atlantic_Ocean_laea_relief_location_map.jpg
Linked Data Potential
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http://en.wikipedia.org/wiki/File:North_Atlantic_Ocean_laea_relief_location_map.jpg
Linked Data Potential
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http://en.wikipedia.org/wiki/File:North_Atlantic_Ocean_laea_relief_location_map.jpg
Linked Data Potential
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http://en.wikipedia.org/wiki/File:North_Atlantic_Ocean_laea_relief_location_map.jpg
Linked Data Potential
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Linked Data Potential
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Linked Data
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RDF
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just another output format?
RDF
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just another output format?
RDF
initially - yes
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RDFIdentifying & Linking
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RDFIdentifying & Linking
Resources to Concepts
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RDFIdentifying & Linking
Resources to Concepts../
res/12345
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RDFIdentifying & Linking
Resources to ConceptsPlanning for Automation ⤵name
../res/12345
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RDFIdentifying & Linking
Resources to ConceptsPlanning for Automation ⤵name
schema:Book⤵../res/12345
type
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RDFIdentifying & Linking
Resources to Concepts
⤵Planning for Automation ⤵name
author
viaf.org/abc
schema:Book⤵../res/12345
type
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RDFIdentifying & Linking
Resources to Concepts
⤵Planning for Automation ⤵
John M Cohn
nameauthor ⤵
viaf.org/abc name
schema:Book⤵../res/12345
type
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RDFIdentifying & Linking
Resources to Concepts
⤵Planning for Automation ⤵
John M Cohn
nameauthor ⤵⤵
loc.gov/auth/sh8507
viaf.org/abc name
about
schema:Book⤵../res/12345
type
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RDFIdentifying & Linking
Resources to Concepts
⤵Planning for Automation ⤵
John M Cohn
nameauthor ⤵⤵
loc.gov/auth/sh8507
viaf.org/abc name
about
Libraries
⤵name
schema:Book⤵../res/12345
type
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RDFIdentifying & Linking
Resources to Concepts⤵
Planning for Automation ⤵John M Cohn
nameauthor ⤵⤵
loc.gov/auth/sh8507
viaf.org/abc name
about
Libraries
⤵name
schema:Book⤵../res/12345
type
<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>
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RDFIdentifying & Linking
Resources to Concepts
Where has the record gone?
⤵Planning for Automation ⤵
John M Cohn
nameauthor ⤵⤵
loc.gov/auth/sh8507
viaf.org/abc name
about
Libraries
⤵name
schema:Book⤵../res/12345
type
<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>
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RDFWhere has the record gone?
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RDFWhere has the record gone?
What next for cataloguing?
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http://www.flickr.com/photos/24736216@N07/6153313394/
Stop Copying
Start Linking
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http://www.flickr.com/photos/24736216@N07/6153313394/
Stop Copying
Start Linking
Be of the Web!
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The world’s libraries. Connected.
Richard Wallis
Technology EvangelistOCLC
@rjw
OCLC ContactdagUtrecht 2 October 2012
The Simple Power of the Link