Accounting for Noise in the Sizing of Populations* *Portions of this paper are excerpted from a paper by the authors entitled “Genetic Algorithms, Noise, and the Sizing of Populations” (Goldberg, Deb, & Clark, 1991).
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TL;DR
Results suggest how the sizing equation may be viewed as a coarse delineation of a boundary between two distinct types of GA behavior, which may one day lead to rigorous proofs of convergence for recombinative GAs operating on problems of bounded deception.
Abstract
This paper considers the effect of noise on the quality of convergence of genetic algorithms (GAs). A population-sizing equation is derived to ensure that minimum signal-to-noise ratios are favorable to the discrimination of the best building blocks required to solve a problem of bounded deception. In five test problems of varying degrees of nonlinearity, nonuniform scaling, and nondeterminism, the sizing relation proves to be a conservative predictor of average correct convergence. These results suggest how the sizing equation may be viewed as a coarse delineation of a boundary between two distinct types of GA behavior. Besides discussing a number of extensions of this work, the paper discusses how these results may one day lead to rigorous proofs of convergence for recombinative GAs operating on problems of bounded deception.
