Discussion of RDFS, focusing on how classes and properties allow one to make inferences about resources. Covers axiomatic triples and inferencing from subproperties. Also discusses inferencing limitations and lack of consistency checks. Briefly discusses how OWL is even more robust than RDFS for inferencing. Also available as PDF: http://videolectures.net/site/normal_dl/tag=612401/sssc2011_norton_rdf_01.pdf
URL: http://videolectures.net/sssc2011_norton_rdf/
Keywords: RDF Schema, Class, Property, Web Ontology Language (OWL), Inferencing
Author: Norton, Barry
Publisher: videolectures.net
Date created: 2011-09-19 04:00:00.000
Language: http://id.loc.gov/vocabulary/iso639-2/eng
Time required: P20M
Educational use: professionalDevelopment
Educational audience: student
Interactivity type: expositive
- Correctly uses sub-property relationships in support of inference.
- 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.
- Knows that Web Ontology Language (OWL) is available in multiple "flavors" that are variously optimized for expressivity, performant reasoning, or for applications involving databases or business rules