This article investigates the of applicability of
adding evolvability promoting mechanisms to a genetic
algorithm to enhance its ability to handle perpetually
novel dynamic environments, especially one that has
stationary periods allowing the Genetic Algorithm (GA)
to converge on a temporary global optimum.We use both
biological and evolutionary computation (EC)
definitions of evolvability to create two measures: one
based on the improvements in fitness; the other based
on the amount of genotypic change. These two
evolvability measures are used alongside fitness to
modify how selection proceeds in the GA. We call this
modified GA the Estimation of Evolvability Genetic
Algorithm (EEGA). When tested against a regular GA
(with random immigrants), the EEGA is able to track the
global optimum more closely than the GA dug the dynamic
period. Unlike most GA extensions, the EEGA works
effectively at a lower level of diversity than does the
GA, showing that it is the quality of the diverse
members in the population and not just the quantity
that helps the GA evolve.
p357 'evolution tends to retain solutions that have a
more evolvable genetic system'
VEGA like. 3 dynamic selection pressures. Efficient
diversity measures. F8F2. Binary graycode.
%0 Journal Article
%1 Wang:2006:GPEM
%A Wang, Yao
%A Wineberg, Mark
%D 2006
%J Genetic Programming and Evolvable Machines
%K Dynamic Evolvability, Price's algorithms, environment, equation genetic
%N 4
%P 355--382
%R doi:10.1007/s10710-006-9015-5
%T Estimation of evolvability genetic algorithm and
dynamic environments
%V 7
%X This article investigates the of applicability of
adding evolvability promoting mechanisms to a genetic
algorithm to enhance its ability to handle perpetually
novel dynamic environments, especially one that has
stationary periods allowing the Genetic Algorithm (GA)
to converge on a temporary global optimum.We use both
biological and evolutionary computation (EC)
definitions of evolvability to create two measures: one
based on the improvements in fitness; the other based
on the amount of genotypic change. These two
evolvability measures are used alongside fitness to
modify how selection proceeds in the GA. We call this
modified GA the Estimation of Evolvability Genetic
Algorithm (EEGA). When tested against a regular GA
(with random immigrants), the EEGA is able to track the
global optimum more closely than the GA dug the dynamic
period. Unlike most GA extensions, the EEGA works
effectively at a lower level of diversity than does the
GA, showing that it is the quality of the diverse
members in the population and not just the quantity
that helps the GA evolve.
@article{Wang:2006:GPEM,
abstract = {This article investigates the of applicability of
adding evolvability promoting mechanisms to a genetic
algorithm to enhance its ability to handle perpetually
novel dynamic environments, especially one that has
stationary periods allowing the Genetic Algorithm (GA)
to converge on a temporary global optimum.We use both
biological and evolutionary computation (EC)
definitions of evolvability to create two measures: one
based on the improvements in fitness; the other based
on the amount of genotypic change. These two
evolvability measures are used alongside fitness to
modify how selection proceeds in the GA. We call this
modified GA the Estimation of Evolvability Genetic
Algorithm (EEGA). When tested against a regular GA
(with random immigrants), the EEGA is able to track the
global optimum more closely than the GA dug the dynamic
period. Unlike most GA extensions, the EEGA works
effectively at a lower level of diversity than does the
GA, showing that it is the quality of the diverse
members in the population and not just the quantity
that helps the GA evolve.},
added-at = {2008-06-19T17:35:00.000+0200},
author = {Wang, Yao and Wineberg, Mark},
biburl = {https://www.bibsonomy.org/bibtex/247a1a437b16d6bb604db100fe3fc2d62/brazovayeye},
doi = {doi:10.1007/s10710-006-9015-5},
interhash = {ea1c1e1cbda8d4f1a20903690c884e61},
intrahash = {47a1a437b16d6bb604db100fe3fc2d62},
issn = {1389-2576},
journal = {Genetic Programming and Evolvable Machines},
keywords = {Dynamic Evolvability, Price's algorithms, environment, equation genetic},
month = {December},
notes = {p357 'evolution tends to retain solutions that have a
more evolvable genetic system'
VEGA like. 3 dynamic selection pressures. Efficient
diversity measures. F8F2. Binary graycode.},
number = 4,
pages = {355--382},
size = {28 pages},
timestamp = {2008-06-19T17:53:52.000+0200},
title = {Estimation of evolvability genetic algorithm and
dynamic environments},
volume = 7,
year = 2006
}