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Publication Detail
Fitness Causes Bloat in Variable Size Representations
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  • Authors:
    Langdon WB
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  • Notes:
    Position paper at the Workshop on Evolutionary Computation with Variable Size Representation at ICGA-97 keywords: genetic algorithms, genetic programming, bloat, variable size representation notes: based upon \citeLangdon:1997:bloatWSC2 but includes data on mutation size: 3 pages
We argue based upon the numbers of representations of given length, that increase in representation length is inherent in using a fixed evaluation function with a discrete but variable length representation. Two examples of this are analysed, including the use of Price’s Theorem. Both examples confirm the tendency for solutions to grow in size is caused by fitness based selection.
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