E ects of Code Growth and ParsimonyPressure on Populations in GeneticProgramming Terence
نویسندگان
چکیده
Parsimony pressure has been increasingly used as a means of controling code growth in genetic programming. However, several published papers have shown that in some cases its use can degrade the performance of the genetic program Koza, 1992, Nordin and Banzhaf, 1995]. In this paper we show that poor average results with parsimony pressure are a result of \failed" populations which overshadow the results of populations which incorporate par-simony pressure successfully. Additionally, we show that the eeect of parsimony pressure can be measured by calculating the relationship between program size and performance within the population. This measure can be used as a partial indicator of success or failure for individual populations.
منابع مشابه
E ects of Code Growth and ParsimonyPressure on Populations in GeneticProgramming
Parsimony pressure, the explicit penalization of larger programs, has been increasingly used as a means of controlling code growth in genetic programming. However, in many cases parsimony pressure degrades the performance of the genetic program. In this paper we show that poor average results with parsimony pressure are a result of \failed" populations which overshadow the results of population...
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