This site introduces ontologies and the Semantic Web, with an emphasis on how ontologies are defined and used for applications. There are about about thirty separate pages which cover ontologies in-depth (including descriptions logic and conceptual frameworks) as well as the RDF Data Model and OWL. This resource covers a lot of ground, including highly conceptual topics.
URL: http://www.obitko.com/tutorials/ontologies-semantic-web/introduction.html
Keywords: Semantic Web, Knowledge base, Web Ontology Language (OWL), RDF Schema, Semantic network, Multi-agent Systems (MAS)
Author: Obitko, Marek
Date created: 2007-01-01 05:00:00.000
Language: http://id.loc.gov/vocabulary/iso639-2/eng
Time required: P2H
Educational use: instruction
Educational audience: student
Interactivity type: expositive
- Knows that the word "ontology" is ambiguous, referring to any RDF vocabulary, but more typically a set of OWL classes and properties designed to support inferencing in a specific domain.
- Knows Web Ontology Language, or OWL (2004), as a RDF vocabulary of properties and classes that extend support for expressive data modeling and automated inferencing (reasoning).
- Uses RDF Schema to express semantic relationships within a vocabulary.
- Understands that resources are declared to be members (instances) of classes using the property rdf:type.
- Understands the principles and practice of inferencing.
- Understands the role of formally declared domains and ranges for inferencing.