291 search results - page 57 / 59 » On the Complexity of Fragments of Modal Logics |
SEMWEB
2010
Springer
13 years 5 months ago
2010
Springer
Abstract. We study the problem of evolution for Knowledge Bases (KBs) expressed in Description Logics (DLs) of the DL-Lite family. DL-Lite is at the basis of OWL 2 QL, one of the t...
ICFEM
2009
Springer
13 years 5 months ago
2009
Springer
In this paper we continue the study of a strict extension of the Computation Tree Logic, called graded-CTL, recently introduced by the same authors. This new logic augments the sta...
CI
2000
13 years 7 months ago
2000
Kowalski and Sergot's Event Calculus (EC) is a simple temporal formalism that, given a set of event occurrences, derives the maximal validity intervals (MVIs) over which prop...
AI
2008
Springer
13 years 7 months ago
2008
Springer
The notion of maintenance often appears in the AI literature in the context of agent behavior and planning. In this paper, we argue that earlier characterizations of the notion of...
POPL
2003
ACM
14 years 8 months ago
2003
ACM
We present a new polynomial-time randomized algorithm for discovering affine equalities involving variables in a program. The key idea of the algorithm is to execute a code fragme...