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ALGORITHMICA
2011
13 years 2 months ago
All-Pairs Bottleneck Paths in Vertex Weighted Graphs
Let G = (V, E, w) be a directed graph, where w : V → R is an arbitrary weight function defined on its vertices. The bottleneck weight, or the capacity, of a path is the smalles...
Asaf Shapira, Raphael Yuster, Uri Zwick
CAV
2008
Springer
139views Hardware» more  CAV 2008»
13 years 10 months ago
CSIsat: Interpolation for LA+EUF
We present CSIsat, an interpolating decision procedure for the quantifier-free theory of rational linear arithmetic and equality with uninterpreted function symbols. Our implementa...
Dirk Beyer, Damien Zufferey, Rupak Majumdar
ICCAD
1995
IEEE
127views Hardware» more  ICCAD 1995»
13 years 11 months ago
Hybrid decision diagrams
Abstract: Functions that map boolean vectors into the integers are important for the design and veri cation of arithmetic circuits. MTBDDs and BMDs have been proposed for represent...
Edmund M. Clarke, Masahiro Fujita, Xudong Zhao
STOC
2010
ACM
200views Algorithms» more  STOC 2010»
14 years 5 months ago
Hardness Amplification in Proof Complexity
We present a generic method for converting any family of unsatisfiable CNF formulas that require large resolution rank into CNF formulas whose refutation requires large rank for p...
Paul Beame, Trinh Huynh and Toniann Pitassi
FSTTCS
2009
Springer
14 years 2 months ago
Fractional Pebbling and Thrifty Branching Programs
We study the branching program complexity of the tree evaluation problem, introduced in [BCM+09a] as a candidate for separating NL from LogCFL. The input to the problem is a roote...
Mark Braverman, Stephen A. Cook, Pierre McKenzie, ...