Linked Data an Introduction

transcript

an introductionRichard WallisTalis@rjw

Linked Data

#talisldod

The impact of Linked Data will be greater

than the World Wide Web it builds upon.

Linked Data

Graph based data modelGlobally Distributed

URI identifiersWeb native

Linked Data

Not new....

Linked Data

http://en.wikipedia.org/wiki/Image:Ancientlibraryalex.jpg

Callimachus - 300BCNot new....

Linked Data

The Linked Data Journey

The Web of Documents

A global network of linked documents

A place where anyone can say anything about anything

A vast collection of human-readable knowledge (and opinion)

Documents are linked, but links are not qualified

Network of Linked Documents

unqualified links

Network of Linked Documents

unqualified links

no such thing as a negative link

Semantic Web

2001 - 2007

Semantic Web Research

Standards BuildingRDF SPARQL

Documents are linked, but links are not qualified

A global network of linked statements

A vast collection of machine-readable knowledge (and opinion)

Statements are linked, and links are qualified

The Web of Data

Linked Data

Tim Berners-Lee

Linked Data

Tim Berners-Lee Weaving

the Web⤵Author

Linked Data

the Web

Mark Fischetti

⤵⤵Author

Author

Linked Data

the Web

Mark Fischetti

⤵⤵ ⤵ Harper Paperbacks

Author

Author Published by

Linked Data

the Web

Mark Fischetti

⤵⤵ ⤵ Harper Paperbacks

⤵Author

Author Published by

Sold by

Linked Data

Amazon.com

Linked Data

http://blog.ted.com/2009/03/13/tim_berners_lee_web/

OpenLinkedLinkedLinked Open

ConfusionData

OpenLinkedLinkedLinked Open

DataOpenLinkedLinkedLinked Open

DataLinked LinkedLinked Open

DataLinked Linked Open

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

4. The Semantic Web can only function with data which is both open and linked

Paul Walk - UKLON

Data Open and/or Linked

Difficult?

http://www.flickr.com/photos/32348401@N00/327430459/

Difficult?

Different?

For the first couple of days it’s like standing on your head...

Liberation..

from RDBMS constraints

Liberation..

from data silos

Liberation..

from data silos

of data modelling

Liberation..

from data silos

of data modelling

of ideas

Liberation..

from data silos

of data modelling

of ideas

for subsequent projects

Linked Data

• Techniques - not new

Linked Data

• Techniques - not new• Built on the Web

Linked Data

• Techniques - not new• Built on the Web• Real implementation of Sem Web standards

Linked Data

• Techniques - not new• Built on the Web• Real implementation of Sem Web standards• Web Native data

Linked Data

• Techniques - not new• Built on the Web• Real implementation of Sem Web standards• Web Native data• Linked Open/Enterprise/Commercial Data

Linked Data

• Techniques - not new• Built on the Web• Real implementation of Sem Web standards• Web Native data• Linked Open/Enterprise/Commercial Data• Open World Modelling

Linked Data

• Techniques - not new• Built on the Web• Real implementation of Sem Web standards• Web Native data• Linked Open/Enterprise/Commercial Data• Open World Modelling• Value add

Linked Data

• Techniques - not new• Built on the Web• Real implementation of Sem Web standards• Web Native data• Linked Open/Enterprise/Commercial Data• Open World Modelling• Value add• A different way of thinking

Linked Data

• Techniques - not new• Built on the Web• Real implementation of Sem Web standards• Web Native data• Linked Open/Enterprise/Commercial Data• Open World Modelling• Value add• A different way of thinking• Ease of reuse

Linked Data

• Techniques - not new• Built on the Web• Real implementation of Sem Web standards• Web Native data• Linked Open/Enterprise/Commercial Data• Open World Modelling• Value add• A different way of thinking• Ease of reuse • Reduced development costs/effort

Linked Data an Introduction

Education