Posted by
Gus Koehler-2 on
Aug 14, 2007; 11:47pm
URL: http://friam.383.s1.nabble.com/Evolution-in-varying-environments-tp524498p524506.html
"modularity--the attempt to understand systems as integrations of partially
independent and interacting units..." See: Callebaut and Rasskin-Gutman
(2005). Modularity: Understanding the Development and Evolution of Natural
Complex Systems. MIT Press.
Gus Koehler, Ph.D.
President and Principal
Time Structures, Inc.
1545 University Ave.
Sacramento, CA 95825
916-564-8683, Fax: 916-564-7895
Cell: 916-716-1740
www.timestructures.com
-----Original Message-----
From:
[hidden email] [mailto:
[hidden email]] On Behalf
Of Marcus G. Daniels
Sent: Tuesday, August 14, 2007 4:22 PM
To: The Friday Morning Applied Complexity Coffee Group
Subject: Re: [FRIAM] Evolution in varying environments
Roger Critchlow wrote:
> I haven't read enough to see how they identify the "modules" into
> which they decompose the phenotype so they can select different
> subsets of modules on each environmental change.
It looks function composition to me. g(f(x,y),h(w,z)) where they,
say, swap around the order of f and h in g. In that way the evolved
boolean network must evolve to remember how g, f, and h work
independently to be efficient and coping with changes in ordering.
Intuitively, it makes sense that changing the composition of functions from
time to time would make each function be more robust.
============================================================
FRIAM Applied Complexity Group listserv
Meets Fridays 9a-11:30 at cafe at St. John's College lectures, archives,
unsubscribe, maps at
http://www.friam.org