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CP
2008
Springer
13 years 6 months ago
Switching among Non-Weighting, Clause Weighting, and Variable Weighting in Local Search for SAT
One way to design a local search algorithm that is effective on many types of instances is allowing this algorithm to switch among heuristics. In this paper, we refer to the way in...
Wanxia Wei, Chu Min Li, Harry Zhang
SAT
2005
Springer
95views Hardware» more  SAT 2005»
13 years 10 months ago
Random Walk with Continuously Smoothed Variable Weights
Many current local search algorithms for SAT fall into one of two classes. Random walk algorithms such as Walksat/SKC, Novelty+ and HWSAT are very successful but can be trapped for...
Steven David Prestwich
JSAT
2008
99views more  JSAT 2008»
13 years 4 months ago
A Switching Criterion for Intensification and Diversification in Local Search for SAT
We propose a new switching criterion, namely the evenness or unevenness of the distribution of variable weights, and use this criterion to combine intensification and diversificat...
Wanxia Wei, Chu Min Li, Harry Zhang