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AAAI
2007
15 years 9 months ago
Action-Space Partitioning for Planning
For autonomous artificial decision-makers to solve realistic tasks, they need to deal with searching through large state and action spaces under time pressure. We study the probl...
Natalia Hernandez-Gardiol, Leslie Pack Kaelbling
EOR
2008
107views more  EOR 2008»
15 years 6 months ago
Fast heuristics for the Steiner tree problem with revenues, budget and hop constraints
This article describes and compares three heuristics for a variant of the Steiner tree problem with revenues, which includes budget and hop constraints. First, a greedy method whi...
Alysson M. Costa, Jean-François Cordeau, Gi...
JFP
2006
67views more  JFP 2006»
15 years 6 months ago
Finger trees: a simple general-purpose data structure
We introduce 2-3 finger trees, a functional representation of persistent sequences supporting access to the ends in amortized constant time, and concatenation and splitting in tim...
Ralf Hinze, Ross Paterson
CORR
2011
Springer
144views Education» more  CORR 2011»
14 years 10 months ago
Analyzing Walksat on random formulas
Let Φ be a uniformly distributed random k-SAT formula with n variables and m clauses. We prove that the Walksat algorithm from [16, 17] finds a satisfying assignment of Φ in pol...
Amin Coja-Oghlan, Alan M. Frieze
AFRICACRYPT
2010
Springer
16 years 1 months ago
Parallel Shortest Lattice Vector Enumeration on Graphics Cards
In this paper we present an algorithm for parallel exhaustive search for short vectors in lattices. This algorithm can be applied to a wide range of parallel computing systems. To ...
Jens Hermans, Michael Schneider 0002, Johannes Buc...