Abstract. We investigate the concept product as an expressive feature for description logics (DLs). While this construct allows us to express an arguably very common and natural ty...
Abstract. Inconsistency handling in expressive description logics is an important problem because inconsistency may naturally occur in an open world. In this paper, we present the ...
An important question for the upcoming Semantic Web is how to best combine open world ontology languages, such as the OWL-based ones, with closed world rule-based languages. One o...
Ontologies are set to play a key r^ole in the "Semantic Web" by providing a source of shared and precisely defined terms that can be used in descriptions of web resource...
RACER implements a TBox and ABox reasoner for the logic SHIQ. RACER was the first full-fledged ABox description logic system for a very expressive logic and is based on optimized ...