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IJCAI
1997
13 years 9 months ago
1997
Practical applications of description logics (DLs) in knowledge-based systems have forced us to introduce the following features which are absent from existing DLs: • allowing a...
DLOG
1996
13 years 9 months ago
1996
Number restrictions are concept constructors that are available in almost all implemented description logic systems. However, even though there has lately been considerable effort...
RR
2009
Springer
14 years 3 months ago
2009
Springer
Abstract. A four-valued description logic has been proposed to reason with description logic based inconsistent knowledge bases. This approach has a distinct advantage that it can ...
DLOG
1998
13 years 9 months ago
1998
Effective systems for expressive description logics require a heavily-optimised subsumption checker incorporating a range of optimisation techniques. Because of the correspondence...
ICMCS
2005
IEEE
14 years 2 months ago
2005
IEEE
Large amount of images need an efficient way of retrieving them. The usual approach of manually annotating images and/or providing a syntactic retrieval capability lacks flexibi...