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JSC
2010
135views more  JSC 2010»
13 years 2 months ago
Deciding inseparability and conservative extensions in the description logic EL
We study the problem of deciding whether two ontologies are inseparable w.r.t. a signature Σ, i.e., whether they have the same consequences in the signature Σ. A special case is...
Carsten Lutz, Frank Wolter
CADE
2007
Springer
14 years 4 months ago
Conservative Extensions in the Lightweight Description Logic EL
We bring together two recent trends in description logic (DL): lightweight DLs in which the subsumption problem is tractable and conservative extensions as a central tool for forma...
Carsten Lutz, Frank Wolter
KI
2007
Springer
13 years 10 months ago
Pinpointing in the Description Logic EL+
Axiom pinpointing has been introduced in description logics (DLs) to help the user understand the reasons why consequences hold by computing minimal subsets of the knowledge base t...
Franz Baader, Rafael Peñaloza, Boontawee Su...
AI
2010
Springer
13 years 4 months ago
Logic-based ontology comparison and module extraction, with an application to DL-Lite
We develop a formal framework for comparing different versions of ontologies, and apply it to ontologies formulated in terms of DL-Lite, a family of `lightweight' description...
Roman Kontchakov, Frank Wolter, Michael Zakharyasc...
DLOG
2009
13 years 2 months ago
Reasoning About Typicality in ALC and EL
In this work we summarize our recent results on extending Description Logics for reasoning about prototypical properties and inheritance with exceptions. First, we focus our attent...
Laura Giordano, Valentina Gliozzi, Nicola Olivetti...