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-----Original Message-----
From: Takashi Ikegami [mailto:ikeg@***.***]
Sent: Tuesday, April 22, 2003 1:58 PM
To: seminar@***.***
Cc: ikeg@***.***
Subject: seminar
We have a seminar on Friday this week at:
16-827 (lecture room) 15:00 -=20
=20
speaker: Chris Salzberg
Section Computational Science,=20
Universiteit van Amsterdam
title + abstract:
"A Closer Look at the evolutionary dynamics of Self-Replicators:
Graph-based genealogy, dynamic environments and the Evoloop."
In this talk I will present a brief overview of our work in progress on
the study of evolutionary processes emerging from an abstract logical
form of self-reproduction. The model our group uses for our experiments
pairs an evolving self-replicator (Sayama's "evoloop") with a dynamic
environment (the "dissolver) in a deterministic cellular automata space.
Population in the resulting system are shown to exhibit speciation and
long-term diversity leading to complex evolutionary behaviour. Using a
new method for identification of loop species according to their
configuration at birth, I present a detailed analysis of genealogy in
this CA space and indicate that it is strongly graph-based. I then
discuss our more recent work which abstracts the concept of a "genealogy
graph" from the Evoloop to a more general system of arbitrary
self-replicators. I conclude with a demonstration of our general method
for visualization of genealogy, applied to the Evoloop model.
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