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SENG691I - Knowledge Representation and The Semantic Web

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Daniel Shaw
Daniel Shaw

The document discusses knowledge representation and the semantic web. It defines knowledge and outlines five roles of knowledge representation, including as a surrogate for knowledge and a medium for computation. It then explains how knowledge can be represented using RDF, describes Tim Berners-Lee as the inventor of the world wide web and founder of the semantic web project. The semantic web is defined as a web of data that allows different types of data to be linked together. Potential applications of the semantic web include intelligent agents and network aware devices.

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Knowledge Representation and the Semantic Web by Daniel D. Shaw
Knowledge Defined ,[object Object],[object Object],[object Object],Source: Oxford English Dictionary (by way of Wikipedia)
Knowledge Representation ,[object Object],[object Object],[object Object],[object Object],Source: Davis, Shrobe and Szolovits, 1993
Knowledge Representation ,[object Object],[object Object],[object Object],Source: Davis, Shrobe and Szolovits, 1993
How do we represent knowledge? <rdf:RDF xmlns:rdf=&quot;http://www.w3.org/1999/02/22-rdf-syntax-ns#“ xmlns:foaf=&quot;http://xmlns.com/foaf/0.1/&quot; xmlns:rdfs=&quot;http://www.w3.org/2000/01/rdf-schema#&quot;> <foaf:Person rdf:about=&quot;#JW&quot;> <foaf:name>Jimmy Wales</foaf:name> <foaf:mbox rdf:resource=&quot;mailto:jwales@bomis.com&quot; /> <foaf:homepage rdf:resource=&quot;http://www.jimmywales.com/&quot; /> <foaf:nick>Jimbo</foaf:nick> <foaf:depiction rdf:resource=&quot;http://www.jimmywales.com/ausimgsmall.jpg&quot;/> <foaf:interest> <rdf:Description rdf:about=&quot;http://www.wikimedia.org“ rdfs:label=&quot;Wikipedia&quot; /> </foaf:interest> <foaf:knows> <foaf:Person> <foaf:name>Angela Beesley</foaf:name> </foaf:Person> </foaf:knows> </foaf:Person> </rdf:RDF> Image Source: http://en.wikipedia.org/wiki/FOAF_(software)
Father of the [Semantic] Web ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Image Source: W3C Semantic Web Activity
Semantic Web ,[object Object],[object Object]
Semantic Web ,[object Object],[object Object]
Semantic Web “LayerCake” Image Source: W3C Semantic Web Activity
Semantic Web “LayerCake” ,[object Object],[object Object],[object Object],[object Object],[object Object],Image Source: W3C Semantic Web Activity
Semantic Web “LayerCake” ,[object Object],[object Object],[object Object],Image Source: W3C Semantic Web Activity
Semantic Web in Practice ,[object Object],[object Object],[object Object]
Semantic Web in Practice ,[object Object],[object Object],[object Object]
Take-aways for Software Engineers ,[object Object],[object Object],[object Object],[object Object]
Take-aways for Software Engineers ,[object Object],[object Object],[object Object],[object Object]
Take-aways for Software Engineers ,[object Object],[object Object],[object Object],[object Object]
Knowledge Representation and the Semantic Web by Daniel D. Shaw Thank you!

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SENG691I - Knowledge Representation and The Semantic Web

  • 1. Knowledge Representation and the Semantic Web by Daniel D. Shaw
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  • 5. How do we represent knowledge? <rdf:RDF xmlns:rdf=&quot;http://www.w3.org/1999/02/22-rdf-syntax-ns#“ xmlns:foaf=&quot;http://xmlns.com/foaf/0.1/&quot; xmlns:rdfs=&quot;http://www.w3.org/2000/01/rdf-schema#&quot;> <foaf:Person rdf:about=&quot;#JW&quot;> <foaf:name>Jimmy Wales</foaf:name> <foaf:mbox rdf:resource=&quot;mailto:jwales@bomis.com&quot; /> <foaf:homepage rdf:resource=&quot;http://www.jimmywales.com/&quot; /> <foaf:nick>Jimbo</foaf:nick> <foaf:depiction rdf:resource=&quot;http://www.jimmywales.com/ausimgsmall.jpg&quot;/> <foaf:interest> <rdf:Description rdf:about=&quot;http://www.wikimedia.org“ rdfs:label=&quot;Wikipedia&quot; /> </foaf:interest> <foaf:knows> <foaf:Person> <foaf:name>Angela Beesley</foaf:name> </foaf:Person> </foaf:knows> </foaf:Person> </rdf:RDF> Image Source: http://en.wikipedia.org/wiki/FOAF_(software)
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  • 9. Semantic Web “LayerCake” Image Source: W3C Semantic Web Activity
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  • 17. Knowledge Representation and the Semantic Web by Daniel D. Shaw Thank you!