13. Web?
HTML http URL
Text text text
text text link
text. Text, text
text text, text.
Text text - text
text - text text
text.
Document
14. Web?
HTML http URL
Text text text
text text link
text. Text, text
text text, text.
Text text - text
text - text text
text.
Text text text
text text.Text:
• link
• link
Text text, text.
Text text - link
text - text text.
Document Document
15. Web?
HTML http URL
Text text text
text text link
text. Text, text
text text, text.
Text text - text
text - text text
text.
Text text text
text text.Text:
• link
• link
Text text, text.
Text text - link
text - text text.
Document Document
16. Web?
HTML http URL
Text text text
text text link
text. Text, text
text text, text.
Text text - text
text - text text
text.
Text text text
text text.Text:
• link
• link
Text text, text.
Text text - link
text - text text.
Document Document
http://example.com/page1
17. Web?
HTML http URL
Text text text
text text link
text. Text, text
text text, text.
Text text - text
text - text text
text.
Text text text
text text.Text:
• link
• link
Text text, text.
Text text - link
text - text text.
Document Document
http://example.com/page1
http://eg.co.uk/list
52. http://nasa.dataincubator.org/spacecraft/1969-059A
mass
28801.0
Apollo 11 CSM Columbia
name name
launch
16 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
95. Linked Data Principles
Linked Data Principles
1. Use URIs as names for things
2. Use HTTP URIs so people can look up those
names
96. 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
97. 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 more
Tim Berners-Lee - 2006
99. 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
100. Linked Data Tools
Storage!
File System / Web Server!
Relational Database - output mapped to RDF!
D2RQ!
Graph Data Store!
!
Triple Store (SPARQL Endpoint)!
Native graph store!
SPARQL Query Language!
Pattern matching!
Not good at strings!
SQL-like syntax!