Sciweavers

200 search results - page 27 / 40
» Logic Programs under Three-Valued Lukasiewicz Semantics
Sort
View
LPNMR
1993
Springer
14 years 18 days ago
Negation as Partial Failure
We present a logic programming language which uses a four-valued bilattice as the underlying framework for semantics of programs. The two orderings of the bilattice reflect the c...
Bamshad Mobasher, Jacek Leszczylowski, Don Pigozzi
AUSAI
2004
Springer
14 years 1 months ago
A Logic Based Approach for Dynamic Access Control
The PolicyUpdater1 system is a fully-implemented access control system that provides policy evaluations as well as dynamic policy updates. These functions are achieved by the use o...
Vino Fernando Crescini, Yan Zhang
ENTCS
2010
96views more  ENTCS 2010»
13 years 8 months ago
Optimizing Conditional Logic Reasoning within CoLoSS
The generic modal reasoner CoLoSS covers a wide variety of logics ranging from graded and probabilistic modal logic to coalition logic and conditional logics, being based on a bro...
Daniel Hausmann, Lutz Schröder
TYPES
1993
Springer
14 years 18 days ago
The Expressive Power of Structural Operational Semantics with Explicit Assumptions
Abstract. We explore the expressive power of the formalism called Natural Operational Semantics, NOS, introduced by Burstall and Honsell for defining the operational semantics of ...
Marino Miculan
PEPM
2009
ACM
14 years 5 months ago
Bidirectional data-flow analyses, type-systematically
We show that a wide class of bidirectional data-flow analyses and program optimizations based on them admit declarative descriptions in the form of type systems. The salient feat...
Maria João Frade, Ando Saabas, Tarmo Uustal...