Definition: Extended RDF (ERDF)

By Jack Krupansky

Extended RDF (ERDF) is an extension of RDF that supports both closed-world and open-world reasoning and includes weak and strong negation, open and closed predicates, default rules for expressing heuristics, as well as derivation rules, allowing for both truth value gaps (partiality) and truth value clashes (inconsistency) through the consideration of falsity extensions in addition to truth extensions for each predicate (class or property).

See: "Extending the Resource Description Framework (RDF) by Adding Negation and Rules" from Institute of Informatics, Brandenburg University of Technology at Cottbus, Germany, Working Group I1

See: "Extended RDF as a Semantic Foundation of Rule Markup Languages" from above.

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Updated: July 22, 2009 07:01:33 PM -0400

Copyright © 2009 John W. Krupansky d/b/a Base Technology