Semantic Web: From Representations to Applications
Bio-ontologies for Annotation and Service Discovery Chris Wroe ( + material from Carole Goble, Alan Rector, Jeremy Rogers, Ian Horrocks) University of.
Chapter 3 RDF and RDFS Semantics. Introduction RDF has a very simple data model But it is quite liberal in what you can say Semantics can be given using.
Chapter 3 RDF and RDFS Semantics
Web Rule Language (WRL) wsmo/wsml/wrl