1. Intelligent Systems Semantic Web

2. Aims of the session To introduce the basic concepts of semantic web ontologies

3. Definition “The Semantic Web is a project to create a universal medium for information exchange by putting documents with computer- processable meaning (semantics) on the World Wide Web. Currently under the direction of the Web's creator, Tim Berners- Lee of the World Wide Web Consortium, the Semantic Web extends the Web through the use of standards, markup languages and related processing tools. “ Wikipedia (2006a)computersemantics World Wide WebTim Berners- LeeWorld Wide Web Consortiummarkup languages

4. Image taken from Wikipedia (2006a)

5. Resource Description Framework (RDF) W3C specification orignally for metadata modelling in XML Metadata model based on statements about resources, three parts (triples): Subject:The resource (often in form of URI) Predicate: aspects of the resource and the relationship between the subject and the object. Object:property To read more Wikipedia (2006c)

6. Illustrative Example Scott Turner University of Northampton

7. Ontologies 1 An ontology is a theory about the nature of existence, what type of things exits. In this case it is a document or file that formally defines a relationship between terms (Berners-Lee et al, 2001)

8. Ontologies 2 Typical kind of ontology for Web applications has a taxonomy and a set of interference rules. Taxonomy defines classes of objects and the relations among them.

9. OWL (Web Ontology Language) A Markup Language for sharing ontologies on the web. Designed for applications that need machine-readable content not just for humans. Written in XML For more information see Wikipedia (2006b)

10. Agents More on this next week This is has been argued is the real power of the power of semantic web to produce machine-readable Web- content. Programs collating information form diverse sources.

11. AI and the semantic web AI aspects (or weak AI (see Wikipedia (2006a)) comes from the machine- readable aspects. Machines ability to perform well defined tasks and well-defined data, for a well- defined problem (Wikipedia 2006a) Is this AI?

12. Does it exist?

14. Your task I want you to produce a 5-10 minute presentation that expands on one of the following aspects: OWL RDF Problems with semantic Web Also 5-10 minutes on linking AI and semantic web

15. References and Bibliography Berners-Lee T, Hendler J, Lassila O (2001) The Semantic Web Scientific American pg 35-43 Wikipedia (2006a) Semantic Web [online] http://en.wikipedia.org/wiki/Semantic_Web Accessed on: 11/1/2007 http://en.wikipedia.org/wiki/Semantic_Web Wikipedia (2006b) Web Ontology Language http://en.wikipedia.org/wiki/Web_Ontology_Languag e Accessed on 11/1/2007 http://en.wikipedia.org/wiki/Web_Ontology_Languag e Accessed on 11/1/2007 Wikipedia (2006c) Resource Description Framework http://en.wikipedia.org/wiki/Resource_Description_Fr amework Accessed on 11/1/2007 http://en.wikipedia.org/wiki/Resource_Description_Fr ameworkAccessed on 11/1/2007