Semantic Web - Themes and Issues by Dan Brickley

Table of contents

• Semantic Web: Themes and Issues
• Introduction
• The World Wide Web Consortium (W3C)
• How does W3C work?
• Introducing W3C's Semantic Web Activity
• What have we made? W3C RDF-based specifications
• Basic RDF/XML example
• Themes and Issues
• RDF Design: social and technical themes
• Characteristics of RDF/RDFS
• Theme: Descriptive not Prescriptive
• Descriptive...
• 5 RDF statements (in RDF/XML)
• What does this say? 5 Simple RDF statements
• Basic FOAF Example as a graph
• Mixing vocabularies
• Basic OWL
• Characteristics of OWL
• Themes and Issues: Application Areas Overlap
• RDFS at a glance (from MCF proposal 1997)
• RDF schema in natural language
• It seems so simple...
• Richer MCF example (on being "extension friendly")
• Semantic Web Community
• Overlaps and extensions
• Detail: RDFizing and Extending OGC's GML
• Simpler example: foaf:based_near
• FOAF Themes, Issues and Lessons
• Theme: Unique Identification
• Friend of a Friend (FOAF) extensions
• Example: FOAF + Images + Maps
• How did we do this?
• Querying RDF: SPARQL ("Sparkle")
• Detail: Yahoo! Maps
• Yahoo! Map
• Preview!: new SPARQL support in the Protege Editor
• Example: FOAFNaut 1
• Example: FOAFNaut 2
• Example: FOAF in Safari newsreader (MacOS X)
• Illustrating FOAF and SW themes
• Summary
• Thank you