the single power of link - richard wallis
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The world’s libraries. Connected.
The Simple Power Of The Link
OCLC Asia Pacific Regional Council Meeting Kuala Lumpar, 4 September 2012
Richard Wallis
Technology EvangelistOCLC
@rjw
The world’s libraries. Connected.
The Simple Power Of The Link
The world’s libraries. Connected.
The Simple Power Of The Link
• What is Linked Data
• Who is using it
• What are the benets
• OCLC and Linked Data
The world’s libraries. Connected.
Linked Data
• What is Linked Data
• Who is using it
• What are the benets
• OCLC and Linked Data
The world’s libraries. Connected.
Web?Semantic
The world’s libraries. Connected.
Web?The
The world’s libraries. Connected.
Web?
HTML
The
The world’s libraries. Connected.
Web?
URL
HTML
The
The world’s libraries. Connected.
Web?
http
URL
HTML
The
The world’s libraries. Connected.
Web?
http
URL
Flash
Javascript
DOM
CSS
Ajax
SEO
Microformats RDFa
JQuery
HTML5
CSS3
XMLJSON
HTML
The
The world’s libraries. Connected.
Web?
http URLHTML
The
Web?
HTML http URL
The
Web?
HTML http URL
Text text texttext text linktext. Text, texttext text, text.Text text - texttext - text text text.
Document
The
Web?
HTML http URL
Text text texttext text linktext. Text, texttext text, text.Text text - texttext - text text text.
Text text texttext text.Text: • link • linkText text, text.Text text - linktext - text text.
Document Document
The
Web?
HTML http URL
Text text texttext text linktext. Text, texttext text, text.Text text - texttext - text text text.
Text text texttext text.Text: • link • linkText text, text.Text text - linktext - text text.
Document Document
The
Web?
HTML http URL
Text text texttext text linktext. Text, texttext text, text.Text text - texttext - text text text.
Text text texttext text.Text: • link • linkText text, text.Text text - linktext - text text.
Document Document
http://example.com
/page1
The
Web?
HTML http URL
Text text texttext text linktext. Text, texttext text, text.Text text - texttext - text text text.
Text text texttext text.Text: • link • linkText text, text.Text text - linktext - text text.
Document Document
http://example.com
/page1
http://eg.co.uk/list
The
Web?
http://example.com/page1 http://eg.co.uk/listLink
The
Linking at it’s core
link
http://www.flickr.com/photos/leapkye/4407661949
Web?The
Linking at it’s core
link
http://www.flickr.com/photos/leapkye/4407661949
PowerfulWeb?The
©AllPosters.com
Linking at it’s core
link
PowerfulWeb?The
WebThe
WebThe
Semantic
Flying Cars Technology
Ai
WebThe
Semantic
Got a bad press
Linked DataLinked Data
Linked Data
Built on Semantic Web Standards
Linked Data
Linked Data
Built on Semantic Web Standards
All about identifying and linking things
Linked Data
Thing
Identifying things
Identifying things
Identifying things
1969-059A
Identifying things
spacecraft/1969-059A
1969-059A
Identifying things
spacecraft/1969-059A
nasa.dataincubator.org/spacecraft/1969-059A
1969-059A
Identifying things
spacecraft/1969-059A
nasa.dataincubator.org/spacecraft/1969-059A
http://nasa.dataincubator.org/spacecraft/1969-059A
1969-059A
Identifying things
spacecraft/1969-059A
nasa.dataincubator.org/spacecraft/1969-059A
http://nasa.dataincubator.org/spacecraft/1969-059A
1969-059A
with URIs
Things have attributeshttp://nasa.dataincubator.org/spacecraft/1969-059A
Things have attributeshttp://nasa.dataincubator.org/spacecraft/1969-059A
28801.0kg
Things have attributeshttp://nasa.dataincubator.org/spacecraft/1969-059A
28801.0kg
Columbia
Things have attributeshttp://nasa.dataincubator.org/spacecraft/1969-059A
28801.0kg
Columbia
Apollo 11 CSM
CSM-107
United States
Cape Canaveral
Saturn 5
http://nasa.dataincubator.org/spacecraft/1969-059A
.../1969-059Ahttp://nasa.dataincubator.org/spacecraft/1969-059A
⤵mass
28801.0.../
1969-059Ahttp://nasa.dataincubator.org/spacecraft/1969-059A
⤵mass
28801.0
Apollo 11 CSM
⤵name.../
1969-059Ahttp://nasa.dataincubator.org/spacecraft/1969-059A
⤵mass
28801.0
Apollo 11 CSM
⤵Columbia⤵
name name.../
1969-059Ahttp://nasa.dataincubator.org/spacecraft/1969-059A
⤵⤵mass
28801.0
Apollo 11 CSM
⤵Columbia⤵
name name.../
1969-059A
prefName
http://nasa.dataincubator.org/spacecraft/1969-059A
⤵⤵⤵mass
28801.0
Apollo 11 CSM
⤵Columbia⤵
name name
launch
.../1969-059A
../launch/
1969-059
prefName
http://nasa.dataincubator.org/spacecraft/1969-059A
⤵⤵⤵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
⤵⤵⤵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
⤵⤵⤵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
⤵⤵⤵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
⤵⤵⤵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
RDF Triple
RDF Triple
Thing attribute value
property
RDF Triple
Thing value
property
RDF Triple
Thing value
Thing property Thing
property
RDF Triple
Thing value
Thing property Thing
../person/A
property
RDF Triple
Thing value
Thing property Thing
../person/A hasParent
property
RDF Triple
Thing value
Thing property Thing
../person/B../person/A hasParent
property
RDF Triple
Thing value
Thing property Thing
../person/B
../person/B
../person/A hasParent
property
RDF Triple
Thing value
Thing property Thing
../person/B
name../person/B
../person/A hasParent
property
“Eric”
RDF Triple
Thing value
Thing property Thing
../person/B
name../person/B
../person/A hasParent
property
“Eric”
RDF Triple
Thing value
Thing property Thing
../person/B
name../person/B
../person/A hasParent
property
“Eric”
RDF Triple
Thing value
Thing property Thing
name../person/B../person/A hasParent
Merging
RDF TripleMerging
RDF TripleMerging
The same identifier in a different place still identifies the same thing
The world’s libraries. Connected.
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 names
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
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
The world’s libraries. Connected.
The world’s libraries. Connected.
http://bbc.co.uk/nature/species/Mallard
The world’s libraries. Connected.
http://bbc.co.uk/nature/species/Mallard SameAs
The world’s libraries. Connected.
http://bbc.co.uk/nature/species/Mallard http://dbpedia.org/resource/MallardSameAs
The world’s libraries. Connected.
http://bbc.co.uk/nature/species/Mallard http://dbpedia.org/resource/MallardSameAs
http://www.w3.org/2002/07/owl/sameAs
The world’s libraries. Connected.
http://bbc.co.uk/nature/species/Mallard http://dbpedia.org/resource/MallardSameAs
primaryTopic http://blx1.bto.org/birdfacts/../bob1860.htm
The world’s libraries. Connected.
http://bbc.co.uk/nature/species/Mallard http://dbpedia.org/resource/MallardSameAs
depiction http://open.live.bbc.co.uk/. mallard_1.jpg
primaryTopic http://blx1.bto.org/birdfacts/../bob1860.htm
http://www.flickr.com/photos/jolieodell/4540783805
http://www.flickr.com/photos/jolieodell/4540783805
http://www.flickr.com/photos/ferretsunlimited/499495786
Linked Data
http://www.flickr.com/photos/ferretsunlimited/499495786
Linked Data
Linked Data WebThe
©AllPosters.com
⤵
⤵⤵Linked Data Web
The
©AllPosters.com
⤵
⤵⤵Linked Data Web
The
©AllPosters.com
at it’s core
link
Linking
⤵
⤵⤵Linked Data Web
The
©AllPosters.com
at it’s core
link
Triples
Data Open and/or LinkedData Open and/or Linked
Data Open and/or Linked
1. Data can be open, while not being linked
Data Open and/or Linked
Data Open and/or Linked
1. Data can be open, while not being linked
2. Data can be linked, while not being open
Data Open and/or Linked
Data Open and/or Linked
1. Data can be open, while not being linked
2. Data can be linked, while not being open
3. Data which is both open and linked is increasingly viable
Data Open and/or Linked
Data Open and/or Linked
Paul Walk - UKLON
1. Data can be open, while not being linked
2. Data can be linked, while not being open
3. Data which is both open and linked is increasingly viable
4. The Semantic Web can only function with data which is both open and linked
Data Open and/or Linked
The world’s libraries. Connected.
Linked Data
The world’s libraries. Connected.
Linked DataVIAF
http://viaf.orgHTML, RDF/XMLLicense: ODC-BY
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
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
The world’s libraries. Connected.
Linked Data
The world’s libraries. Connected.
Linked Data• 270+ Million resources
The world’s libraries. Connected.
Linked Data• 270+ Million resources• Schema.org + Library
The world’s libraries. Connected.
Linked Data• 270+ Million resources• Schema.org + Library• Embedded RDFa
The world’s libraries. Connected.
Linked Data• 270+ Million resources• Schema.org + Library• Embedded RDFa• Links to: Dewey, LCSH
LCNAF, DOI, VIAF, FAST
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
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
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
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
Download file• Most widely held works
(250+ holdings)
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
Download file• Most widely held works
(250+ holdings)
• 1.2 Million resources(80 million triples)
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
Download file• Most widely held works
(250+ holdings)
• 1.2 Million resources(80 million triples)
• Schema.org + Library
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
Download file• Most widely held works
(250+ holdings)
• 1.2 Million resources(80 million triples)
• Schema.org + Library• License: ODC-BY
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
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://www.oclc.org/data/attribution.html
The world’s libraries. Connected.
Linked Data
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
data@oclc.org
The world’s libraries. Connected.
The Simple Power Of The Link
OCLC Asia Pacific Regional Council Meeting Kuala Lumpar, 4 September 2012
Richard Wallis
Technology EvangelistOCLC
@rjw
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