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JACM
2010
116views more  JACM 2010»
13 years 5 months ago
The complexity of temporal constraint satisfaction problems
A temporal constraint language is a set of relations that has a first-order definition in (Q, <), the dense linear order of the rational numbers. We present a complete comple...
Manuel Bodirsky, Jan Kára
CAV
2003
Springer
107views Hardware» more  CAV 2003»
14 years 19 days ago
Theorem Proving Using Lazy Proof Explication
Many verification problems reduce to proving the validity of formulas involving both propositional connectives and domain-specific functions and predicates. This paper presents ...
Cormac Flanagan, Rajeev Joshi, Xinming Ou, James B...
FOCS
2009
IEEE
14 years 2 months ago
Faster Generation of Random Spanning Trees
In this paper, we set forth a new algorithm for generating approximately uniformly random spanning trees in undirected graphs. We show how to sample from a distribution that is wi...
Jonathan A. Kelner, Aleksander Madry
ICFEM
2007
Springer
13 years 11 months ago
Automating Refinement Checking in Probabilistic System Design
Abstract. Refinement plays a crucial role in "top-down" styles of verification, such as the refinement calculus, but for probabilistic systems proof of refinement is a pa...
Carlos Gonzalia, Annabelle McIver
CP
2006
Springer
13 years 11 months ago
Approximability of Integer Programming with Generalised Constraints
We study a family of problems, called Maximum Solution, where the objective is to maximise a linear goal function over the feasible integer assignments to a set of variables subjec...
Peter Jonsson, Fredrik Kuivinen, Gustav Nordh