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Erschienen in:
2003 | OriginalPaper | Buchkapitel
Analysis of a Digit Concatenation Approach to Constant Creation
verfasst von : Michael O’Neill, Ian Dempsey, Anthony Brabazon, Conor Ryan
Erschienen in: Genetic Programming
Verlag: Springer Berlin Heidelberg
Enthalten in: Professional Book Archive
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This study examines the utility of employing digit concatenation, as distinct from the traditional expression based approach, for the purpose of evolving constants in Grammatical Evolution. Digit concatenation involves creating constants (either whole or real numbers) by concatenating digits to form a single value. The two methods are compared using three different problems, which are finding a static real constant, finding dynamic real constants, and a quadratic map, which on iteration generates a chaotic time-series. The results indicate that the digit concatenation approach results in a significant improvement in the best fitness obtained across all problems analysed here.