Managing Repetition in Grammar-Based Genetic Programming

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Title: Managing Repetition in Grammar-Based Genetic Programming
Authors: Nicolau, Miguel
Fenton, Michael
Permanent link: http://hdl.handle.net/10197/8248
Date: 24-Jul-2016
Abstract: Grammar-based Genetic Programming systems are capable of generating identical phenotypic solutions, either by creating repeated genotypic representations, or from distinct genotypes, through their many-to-one mapping process. Furthermore, their initialisation process can generate a high number of duplicate individuals, while traditional variation and replacement operators can permit multiple individuals to percolate through generations unchanged. This can lead to a high number of phenotypically identical individuals within a population. This study investigates the frequency and effect of such duplicate individuals on a suite of benchmark problems. Both Grammatical Evolution and the CFG-GP systems are examined. Experimental evidence suggests that these useless evaluations can be instead be used either to speed-up the evolutionary process, or to delay convergence.
Funding Details: Science Foundation Ireland
Type of material: Conference Publication
Publisher: ACM
Copyright (published version): 2016 ACM
Keywords: Evolutionary algorithms;Genetic programming
DOI: 10.1145/2908812.2908904
Language: en
Status of Item: Peer reviewed
Is part of: Friedrich, T. (ed.). Proceedings of the 2016 on Genetic and Evolutionary Computation Conference Companion
Conference Details: Genetic and Evolutionary Computation - GECCO 2016, Genetic and Evolutionary Computation Conference, Denver, CO, USA, July 20-24, 2016, Proceedings, July, 2016
Appears in Collections:Business Research Collection

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