137 search results - page 16 / 28 » Approximating OWL-DL Ontologies |
DLOG
2009
13 years 5 months ago
2009
Abstract. TBox reasoning in description logics is hard. For example, reasoning in SROIQ (i.e. OWL2-DL) is N2EXPTIME-complete; even with R, a fragment of SROIQ supporting ALC GCIs a...
ESWS
2006
Springer
13 years 11 months ago
2006
Springer
Abstract. Despite of their advertisement as task independent representations, the reuse of ontologies in different contexts is difficult. An explanation for this is that when devel...
ECAI
2008
Springer
13 years 9 months ago
2008
Springer
At the "functional level", Semantic Web Services (SWS) are described akin to planning operators, with preconditions and effects relative to an ontology; the ontology prov...
GEOINFORMATICA
2002
13 years 7 months ago
2002
This paper deals with the representation and the processing of information about spatial objects with indeterminate location like valleys or dunes (objects subject to vagueness). ...
FLAIRS
2008
13 years 10 months ago
2008
Concept representation in ontology is a basic problem on the Semantic Web. In human cognitive process, object typicality plays an important role in concept representation. Traditi...