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From: altenber@imiloa.soest.hawaii.edu (Lee Altenberg)
Subject: Re: Question: On changing genome size
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Date: Thu, 30 Mar 1995 05:41:24 GMT
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In article <D63FG9.2rv@info.bris.ac.uk>, ian@bris.ac.uk (Ian Craddock) writes:

> I've been having similar thoughts and am quite interested in this idea;
> so far what I've considered is that (along with many other features of
> GA's) the change in genome size should be modelled on what happens in
[Snip]
> 
> I'm not aware of anyone having tried this and this isnt my main research

Actually, I have a number of papers looking at the effect
of selective geneome growth on the evolvability of the genome
and the structure of the genotype-phenotype map.

The gist of the work is that selection in the process of gene
addition can produce highly modular genotype-phenotype maps
that have a much better chance of producing favorable mutations
than would a "typical" genotype-phenotype map produced by random
addition of new genes.  It give one reason to believe that 
real organisms have a lot of structure in the genetic control
over their phenotype that bears on its evolvability, and provides
a technique for evolving better representations for GAs.

AUTHOR = "Lee Altenberg",
YEAR = 1994,
TITLE = "The evolution of evolvability in genetic programming",
BOOKTITLE = "Advances in Genetic Programming",
EDITOR = "Kenneth E. Kinnear",
PUBLISHER = "MIT Press",
ADDRESS = "Cambridge, MA",
PAGES =  "47--74"

AUTHOR = "Lee Altenberg",
YEAR = "1994",
PAGES = "182-187",
TITLE = "Evolving better representations through selective genome growth",
BOOKTITLE = "Proceedings of the {IEEE} World Congress on Computational 
Intelligence",
EDITOR = "J. David Schaffer and H. P. Schwefel and Hiroaki Kitano", 
PUBLISHER = "IEEE",
ADDRESS = "Piscataway N.J."

AUTHOR = "Altenberg, Lee",
YEAR = "1995",
TITLE = "Genome growth and the evolution of the genotype-phenotype map",
BOOKTITLE = "Evolution as a Computational Process",
EDITOR = "Wolfgang Banzhaf and Frank H. Eeckman",
PUBLISHER = "Springer-Verlag",
ADDRESS = "Berlin"

These papers are available via anonymous ftp at
amida.zoo.duke.edu under /pub/LEE/ in the files
LeeEEGP.ps, LeeEBR.ps, and LeeBiocompFinal.ps.Z.

-- Lee Altenberg
Maui High Performance Computing Center
altenber@mhpcc.edu

