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» A Non-linear Time Lower Bound for Boolean Branching Programs
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NETWORKS
2008
13 years 9 months ago
New dynamic programming algorithms for the resource constrained elementary shortest path problem
The resource-constrained elementary shortest path problem arises as a pricing subproblem in branch-and-price algorithms for vehicle routing problems with additional constraints. W...
Giovanni Righini, Matteo Salani
JCSS
2000
116views more  JCSS 2000»
13 years 9 months ago
Time-Space Tradeoffs for Satisfiability
We give the first nontrivial model-independent time-space tradeoffs for satisfiability. Namely, we show that SAT cannot be solved simultaneously in n1+o(1) time and n1space for an...
Lance Fortnow
AI
2010
Springer
13 years 10 months ago
Soft arc consistency revisited
The Valued Constraint Satisfaction Problem (VCSP) is a generic optimization problem defined by a network of local cost functions defined over discrete variables. It has applicatio...
Martin C. Cooper, Simon de Givry, M. Sanchez, Thom...
APPROX
2009
Springer
137views Algorithms» more  APPROX 2009»
14 years 4 months ago
Testing Computability by Width Two OBDDs
Property testing is concerned with deciding whether an object (e.g. a graph or a function) has a certain property or is “far” (for some definition of far) from every object w...
Dana Ron, Gilad Tsur
ICALP
2009
Springer
14 years 10 months ago
LTL Path Checking Is Efficiently Parallelizable
We present an AC1 (logDCFL) algorithm for checking LTL formulas over finite paths, thus establishing that the problem can be efficiently parallelized. Our construction provides a f...
Lars Kuhtz, Bernd Finkbeiner