منابع مشابه
Comparing Mechanisms for Evolving Evolvability
In evolutionary search, the term evolvability as de ned in [Altenberg 94] refers to \the ability of a population to produce variants tter than any yet existing". In this paper, we examine a few existing mechanisms which provide the potential for the evolvability of a population to itself evolve. One key property that we identify among such mechanisms is a many-to-one genotype-to-phenotype mappi...
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We demonstrate how the need to cope with operational faults enables evolving circuits to find more fit solutions. The analysis of the results obtained in different experimental conditions indicates that, in absence of faults, evolution tends to select circuits that are small and have low phenotypic variability and evolvability. The need to face operation faults, instead, drives evolution toward...
متن کاملRobustness, Evolvability and Phenotypic Complexity: Insights from Evolving Digital Circuits
We show how the characteristics of the evolutionary algorithm influence the evolvability of candidate solutions, i.e. the propensity of evolving individuals to generate better solutions as a result of genetic variation. More specifically, (1+λ) evolutionary strategies largely outperform (μ+1) evolutionary strategies in the context of the evolution of digital circuits --a domain characterized by...
متن کاملWeak Evolvability Equals Strong Evolvability
This paper provides an answer to the open problem raised by Feldman and Valiant at COLT’08. That is, it is known that concepts classes of conjunctions, disjunctions, linear threshold functions and k-CNF/DNF are evolvable over fixed distributions, but it is unknown whether they are evolvable distribution-independently. Or in other words, whether weak evolvability is equivalent to strong evolvabi...
متن کاملEvolvability.
Evolvability is an organism's capacity to generate heritable phenotypic variation. Metazoan evolution is marked by great morphological and physiological diversification, although the core genetic, cell biological, and developmental processes are largely conserved. Metazoan diversification has entailed the evolution of various regulatory processes controlling the time, place, and conditions of u...
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ژورنال
عنوان ژورنال: Nature
سال: 2000
ISSN: 0028-0836,1476-4687
DOI: 10.1038/35035173