• review of first lecture
• context-aware, personalised
  • Example: Media:PersonalisedInformation.mp4
• future "mobile" Internet: Web, People, Devices

Tasks

• Presentation of context aware scenarios
• 4-5 Scientific papers
• install Protege 3.5

• Understand the need for semantics
• Can list the basic elements of semantic technologies
• Explain the differences between semantic web and semantic web services
• Next: Identify semantic technologies for description of the user and his context
• Next: Describe the difference between ontologies and rules

Reference: J.C. Morris, The Role Of Ontology In Modern Expert Systems Dallas 2008, slideshare.com

References:

• Trends in the future: http://www.slideshare.net/matthewbuckland/future-web-trends Media:MatthewBucklandFutureTrends.ppt

published in 2008

Discuss:

• what are the main elements of semantics
• differences between .rdf, .owl,
• "what are your expectations on semantics?"

Customer preferences

• Trust relation
• Clear value proposition (convenience)
• Information/advertisement overload

Main duties for service players

• Customer relation (paying the bill)
• Service integration
• New business ideas
• Customer protection (information

References:

• J. Noll, "Semantics and Real World Multimedia", May 2008 Media:200805FIT-IT-SemanticsMultiMedia.pdf

See Service Semantics, Tutorial at LUT, Media:200708ServiceSemantics-Tutorial.pdf

• Explain: RDF, OWL, ...
• Discuss: use cases, restrictions

Semantics:

• .xml relation between subject & object
• .rdf subject, predict, object
• .rdfs vocabulary for properties
• ontologies as data models of a domain
  • describe through rdf or owl
  • owl is more expressive

• Extension of semantics through rules
• Rules might replace ontologies

• ontologies describe the data on a Web
• very good suited as a knowledge base, e.g. medical history, interworking of medicine, oil drilling
• when using a semantic model in the real world, the challenge is to get changes (updates) to the ontologies. Example: car industry, where cars are produced under the same header with slightly different outfit, where manufacturers change frequently,...

• cover only limited area (specific area, "swamps of ontologies")
• have a "creation date" (timestamp) in mind
  • upgradability?
  • consistency when upgrading one ontology
• are good for knowledge management
• interface between knowledge management and processes is not clear

• Understand the need for semantics
• Can list the basic elements of semantic technologies
• Explain the differences between semantic web and semantic web services
• Next: Identify semantic technologies for description of the user and his context
• Next: Describe the difference between ontologies and rules

Tasks

• Presentation of context aware scenarios
• 4-5 Scientific papers
• install Protege 3.5

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