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ENTCS
2006
103views more  ENTCS 2006»
15 years 6 months ago
Static Equivalence is Harder than Knowledge
There are two main ways of defining secrecy of cryptographic protocols. The first version checks if the adversary can learn the value of a secret parameter. In the second version,...
Johannes Borgström
ENTCS
2006
113views more  ENTCS 2006»
15 years 6 months ago
A Large-Scale Experiment in Executing Extracted Programs
It is a well-known fact that algorithms are often hidden inside mathematical proofs. If these proofs are formalized inside a proof assistant, then a mechanism called extraction ca...
Luís Cruz-Filipe, Pierre Letouzey
CORR
2002
Springer
87views Education» more  CORR 2002»
15 years 6 months ago
Ultimate approximations in nonmonotonic knowledge representation systems
We study xpoints of operators on lattices. To this end we introduce the notion of an approximation of an operator. We order approximations by means of a precision ordering. We sho...
Marc Denecker, V. Wiktor Marek, Miroslaw Truszczyn...
CORR
1999
Springer
95views Education» more  CORR 1999»
15 years 6 months ago
Fixed-parameter tractability, definability, and model checking
In this article, we study parameterized complexity theory from the perspective of logic, or more specifically, descriptive complexity theory. We propose to consider parameterized ...
Jörg Flum, Martin Grohe
FOGA
2011
14 years 10 months ago
The logarithmic hypervolume indicator
It was recently proven that sets of points maximizing the hypervolume indicator do not give a good multiplicative approximation of the Pareto front. We introduce a new “logarith...
Tobias Friedrich, Karl Bringmann, Thomas Voß...