Tournament versus Fitness Uniform Selection

Details Tournament versus Fitness Uniform Selection Tournament versus Fitness Uniform Selection

2004-03-23

arxiv.org/abs/cs/0403038v1

Proc. 2004 Congress on Evolutionary Computation (CEC-2004), pages 2144--2151

Computer Science

Learning

10 pages, 8 figures

Scientific paper

In evolutionary algorithms a critical parameter that must be tuned is that of selection pressure. If it is set too low then the rate of convergence towards the optimum is likely to be slow. Alternatively if the selection pressure is set too high the system is likely to become stuck in a local optimum due to a loss of diversity in the population. The recent Fitness Uniform Selection Scheme (FUSS) is a conceptually simple but somewhat radical approach to addressing this problem - rather than biasing the selection towards higher fitness, FUSS biases selection towards sparsely populated fitness levels. In this paper we compare the relative performance of FUSS with the well known tournament selection scheme on a range of problems.

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