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KI
2006
Springer
13 years 11 months ago
A New n-ary Existential Quantifier in Description Logics
Motivated by a chemical process engineering application, we introduce a new concept constructor in Description Logics (DLs), an n-ary variant of the existential restriction constr...
DLOG
1996
14 years 26 days ago
Number Restrictions on Complex Roles in Description Logics: A Preliminary Report
Number restrictions are concept constructors that are available in almost all implemented description logic systems. However, even though there has lately been considerable effort...
Franz Baader, Ulrike Sattler
DLOG
2001
14 years 28 days ago
Combining Tableaux and Algebraic Methods for Reasoning with Qualified Number Restrictions
This paper investigates an optimization technique for reasoning with qualified number restrictions in the description logic ALCQHR+ . We present a hybrid architecture where a stan...
Volker Haarslev, Martina Timmann, Ralf Möller
SEBD
2007
121views Database» more  SEBD 2007»
14 years 29 days ago
Query Answering in Expressive Variants of DL-Lite
The use of ontologies in various application domains, such as Data Integration, the Semantic Web, or ontology-based data management, where ontologies provide the access to large am...
Alessandro Artale, Diego Calvanese, Roman Kontchak...
AAAI
2007
14 years 1 months ago
DL-Lite in the Light of First-Order Logic
The use of ontologies in various application domains, such as Data Integration, the Semantic Web, or ontology-based data management, where ontologies provide the access to large a...
Alessandro Artale, Diego Calvanese, Roman Kontchak...
EPIA
1995
Springer
14 years 3 months ago
The Retrieval Problem in a Concept Language with Number Restrictions
In this paper, we study the retrieval problem in ALN, which is a tractable concept language with number restrictions. Following the approach proposed in [12], this work differs fr...
Aida Vitória, Margarida Mamede, Luís...