82 search results - page 11 / 17 » Datalog and Description Logics: Expressive Power |
DLOG
2007
13 years 10 months ago
2007
In this paper we deal with the problem of providing natural language front-ends to databases upon which an ontology layer has been added. Specifically, we are interested in expres...
LPAR
2010
Springer
13 years 5 months ago
2010
Springer
Unification in Description Logics has been proposed as a novel inference service that can, for example, be used to detect redundancies in ontologies. In a recent paper, we have sho...
CADE
2006
Springer
14 years 8 months ago
2006
Springer
CEL (Classifier for EL) is a reasoner for the small description logic EL+ which can be used to compute the subsumption hierarchy induced by EL+ ontologies. The most distinguishing ...
ACMICEC
2005
ACM
14 years 1 months ago
2005
ACM
In order to capture the full fledge semantic of complicated product data model, the expressive language ALCNHR+ K(D) is introduced. It cannot only be able to represent knowledge a...
SIGMOD
2005
ACM
14 years 8 months ago
2005
ACM
The description, composition, and execution of even logically simple scientific workflows are often complicated by the need to deal with "messy" issues like heterogeneou...