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» Description Logic Reasoner: System Description
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119
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ECSQARU
2009
Springer
15 years 8 months ago
Supporting Fuzzy Rough Sets in Fuzzy Description Logics
Abstract. Classical Description Logics (DLs) are not suitable to represent vague pieces of information. The attempts to achieve a solution have lead to the birth of fuzzy DLs and r...
Fernando Bobillo, Umberto Straccia
DLOG
2011
14 years 5 months ago
Nominal Schemas for Integrating Rules and Description Logics
We propose an extension of SROIQ with nominal schemas which can be used like “variable nominal concepts” within axioms. This feature allows us to express arbitrary DL-safe rule...
Markus Krötzsch, Frederick Maier, Adila Alfa ...
85
Voted
AAAI
2007
15 years 3 months ago
Complexity Boundaries for Horn Description Logics
Horn description logics (Horn-DLs) have recently started to attract attention due to the fact that their (worst-case) data complexities are in general lower than their overall (i....
Markus Krötzsch, Sebastian Rudolph, Pascal Hi...
DLOG
2003
15 years 2 months ago
Restricted Role-value-maps in a Description Logic with Existential Restrictions and Terminological Cycles
In a previous paper we have investigated subsumption in the presence of terminological cycles for the description logic EL, which allows conjunctions, existential restrictions, an...
Franz Baader
DLOG
2003
15 years 2 months ago
Rewriting Aggregate Queries using Description Logic
This paper presents an application of a DL reasoner to the optimization of an object-relational query language. Queries containing aggregate functions are difficult to optimize be...
David DeHaan, David Toman, Grant E. Weddell