Richard Wallis@rjw
Why Link?Linking has value for data
big and small
Leading Semantic WebTechnology
Leading Semantic WebTechnology
40 Year RichMetadata Heritage
Leading Semantic WebTechnology
40 Year RichMetadata Heritage
Shared InnovationEthos
kasabi.com
RelatingStuff
?Finding Stuff
RelatingStuff
?Finding Stuff
RelatingStuff
?
Finding StuffRelating Stuff
?
Finding StuffRelating Stuff
Not a human-scale challenge...
Not a human-scale challenge...
Which ‘thing’ are you referencing ...
Not a human-scale challenge...
Which ‘thing’ are you referencing ...
Feed of Weather/Buoy Data•Updated every 6 mins•Temp - Air/Water•Humidity•Wind - Speed/Direction•Atmospheric Pressure
http://www.wunderground.com
Feed of Weather/Buoy Data•Updated every 6 mins•Temp - Air/Water•Humidity•Wind - Speed/Direction•Atmospheric Pressure
http://www.wunderground.com
Feed of Weather/Buoy Data•Updated every 6 mins•Temp - Air/Water•Humidity•Wind - Speed/Direction•Atmospheric Pressure
http://www.wunderground.com
Feed of Weather/Buoy Data•Updated every 6 mins•Temp - Air/Water•Humidity•Wind - Speed/Direction•Atmospheric Pressure
http://www.wunderground.com
Linked Data
Linked DataBuilt on Semantic Web Standards
Linked DataBuilt on Semantic Web Standards
All about identifying and linking things
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
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
http://nasa.dataincubator.org/spacecraft/1969-059A
.../spacecraft/1969-059A
http://nasa.dataincubator.org/spacecraft/1969-059A.../spacecraft/1969-059A
⤵mass
28801.0
http://nasa.dataincubator.org/spacecraft/1969-059A.../spacecraft/1969-059A
⤵mass
28801.0
Apollo 11 CSM⤵name
http://nasa.dataincubator.org/spacecraft/1969-059A.../spacecraft/1969-059A
⤵mass
28801.0
Apollo 11 CSM⤵⤵name name
http://nasa.dataincubator.org/spacecraft/1969-059A.../spacecraft/1969-059A
Columbia
⤵⤵mass
28801.0
Apollo 11 CSM⤵⤵name name
launchhttp://nasa.dataincubator.org/spacecraft/1969-059A.../spacecraft/
1969-059A
../launch/1969-059
Columbia
⤵⤵mass
28801.0
Apollo 11 CSM⤵⤵name name
launch⤵
date
http://nasa.dataincubator.org/spacecraft/1969-059A.../spacecraft/1969-059A
../launch/1969-059
Columbia
16 July 1969
⤵⤵mass
28801.0
Apollo 11 CSM⤵⤵name name
launch⤵
date
⤵site
http://nasa.dataincubator.org/spacecraft/1969-059A.../spacecraft/1969-059A
../launch/1969-059
../cape canaveral
Columbia
16 July 1969
⤵⤵mass
28801.0
Apollo 11 CSM⤵⤵name name
launch⤵
date
⤵site
⤵lat
http://nasa.dataincubator.org/spacecraft/1969-059A.../spacecraft/1969-059A
../launch/1969-059
../cape canaveral
Columbia
16 July 1969
N 28° 27' 31''
⤵⤵mass
28801.0
Apollo 11 CSM⤵⤵name name
launch⤵
date
⤵site
W 80° 31' 59''
⤵⤵lat
long
http://nasa.dataincubator.org/spacecraft/1969-059A.../spacecraft/1969-059A
../launch/1969-059
../cape canaveral
Columbia
16 July 1969
N 28° 27' 31''
⤵⤵mass
28801.0
Apollo 11 CSM⤵⤵name name
launch⤵
date
⤵site<../1969-059A> mass 28801.0 .<../1969-059A> name “Apollo 11 CSM” .<../1969-059A> name “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''” . W 80° 31' 59''
⤵⤵lat
long
http://nasa.dataincubator.org/spacecraft/1969-059A.../spacecraft/1969-059A
../launch/1969-059
../cape canaveral
Columbia
16 July 1969
N 28° 27' 31''
⤵⤵mass
28801.0
Apollo 11 CSM⤵⤵name name
launch⤵
date
⤵site<../1969-059A> mass 28801.0 .<../1969-059A> name “Apollo 11 CSM” .<../1969-059A> name “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''” .
RDF
W 80° 31' 59''
⤵⤵lat
long
http://nasa.dataincubator.org/spacecraft/1969-059A.../spacecraft/1969-059A
../launch/1969-059
../cape canaveral
Columbia
16 July 1969
N 28° 27' 31''
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
Merging
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 is still identifying the same thing
Linked Data Principles
Linked Data Principles1. Use URIs as names for things
Linked Data Principles1. Use URIs as names for things
2. Use HTTP URIs so people can look up those names
Linked Data Principles1. 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
Linked Data Principles1. 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
Feed of Weather/Buoy Data•Updated every 6mins•Temp - Air/Water•Humidity•Wind - Speed/Direction•Atmospheric Pressure
http://www.wunderground.com
Feed of Weather/Buoy Data•Updated every 6mins•Temp - Air/Water•Humidity•Wind - Speed/Direction•Atmospheric Pressure
http://www.wunderground.com
http://dbpedia.org/resource/Boston
Feed of Weather/Buoy Data•Updated every 6mins•Temp - Air/Water•Humidity•Wind - Speed/Direction•Atmospheric Pressure
http://www.wunderground.com
http://dbpedia.org/resource/Boston
http://dbpedia.org/resource/Boston
Feed of Weather/Buoy Data•Updated every 6mins•Temp - Air/Water•Humidity•Wind - Speed/Direction•Atmospheric Pressure
http://www.wunderground.com
http://dbpedia.org/resource/Boston%2C_Lincolnshirehttp://dbpedia.org/resource/Boston
http://dbpedia.org/resource/Boston
http://dbpedia.org/resource/Boston%2C_Lincolnshire
Linked Data example
Linked Data example
Linked Data example
Linked Data example
Linked Data example
Linked Data example
What do I need to know?Linked Data
What do I need to know?
•Globally distributed / adopted
Linked Data
What do I need to know?
•Globally distributed / adopted
•Still evolving
Linked Data
What do I need to know?
•Globally distributed / adopted
•Still evolving
•Built on Web standards
Linked Data
What do I need to know?
•Globally distributed / adopted
•Still evolving
•Built on Web standards
•Low barrier to
Linked Data
data
What do I need to know?
•Globally distributed / adopted
•Still evolving
•Built on Web standards
•Low barrier to
Linked Data
[other people’s] data
What do I need to know?
•Globally distributed / adopted
•Still evolving
•Built on Web standards
•Low barrier to
•Integration without ‘need’ for coordination
Linked Data
[other people’s] data
What do I need to know?
•Globally distributed / adopted
•Still evolving
•Built on Web standards
•Low barrier to
•Integration without ‘need’ for coordination
•Follow-your-nose discovery/navigation
Linked Data
[other people’s] data
What do I need to know?Linked Data
What do I need to know?
•Not all Linked Data is Open
Linked Data
What do I need to know?
•Not all Linked Data is Open
•Not all Open Data is Linked
Linked Data
What do I need to know?
•Not all Linked Data is Open
•Not all Open Data is Linked
•All your data does not need to be open
Linked Data
What do I need to know?
•Not all Linked Data is Open
•Not all Open Data is Linked
•All your data does not need to be open
•Linking your [open] data liberates it’s value
Linked Data
Linked Data
How much do I need to do?
•As much as practicable
Linked Data
How much do I need to do?
•As much as practicable
•Identify your ‘things’ and link to ...
Linked Data
How much do I need to do?
•As much as practicable
•Identify your ‘things’ and link to ...
- add value to your data
Linked Data
How much do I need to do?
•As much as practicable
•Identify your ‘things’ and link to ...
- add value to your data
- help others discover
Linked Data
Linked Data
Who is doing it?Linked Data
Who is doing it?Linked Data
Who is doing it?Linked Data
Who is doing it?Linked Data
Richard Wallis@rjw
Why Link?Linking has value for data
big and small
Richard Wallis@rjw
Why Link?Linking has value for data
big and small
http://slideshare.net/rjw
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