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CADE
2008
Springer
14 years 7 months ago
The Complexity of Conjunctive Query Answering in Expressive Description Logics
Abstract. Conjunctive query answering plays a prominent role in applications of description logics (DLs) that involve instance data, but its exact complexity was a long-standing op...
Carsten Lutz
AUSAI
1999
Springer
13 years 11 months ago
Computing Least Common Subsumers in Expressive Description Logics
Computing least common subsumers in description logics is an important reasoning service useful for a number of applications. As shown in the literature, this reasoning service ca...
Thomas Mantay
JAIR
1998
163views more  JAIR 1998»
13 years 7 months ago
A Temporal Description Logic for Reasoning about Actions and Plans
A class of interval-based temporal languages for uniformly representing and reasoning about actions and plans is presented. Actions are represented by describing what is true whil...
Alessandro Artale, Enrico Franconi
DLOG
2001
13 years 8 months ago
On Expressive Number Restrictions in Description Logics
We consider expressive Description Logics (ALCN) allowing for number restrictions on complex roles built with combinations of role constructors. In particular, we are mainly inter...
Fabio Grandi
DLOG
2004
13 years 8 months ago
Sonic: System Description
Sonic1 is the first prototype implementation of non-standard inferences for Description Logics that can be used via a graphical user interface. In addition to that our implementat...
Anni-Yasmin Turhan, Christian Kissig