Posted by
Kenneth Lloyd on
URL: http://friam.383.s1.nabble.com/Welcome-Jim-tp526087p526098.html
Hi Joost,
Here's a case study. Notice how the concept of a geometrical space can be
equated to a "context" in which patterns evolve, and see how this differs
from its primitive cousin - an evolutionary genetic ANN.
http://eplex.cs.ucf.edu/papers/gauci_aaai08.pdf
Ken
=============================
Kenneth A. Lloyd
CEO and Director of Systems Science
Watt Systems Technologies Inc.
Albuquerque, NM USA
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kenneth.lloyd at incose.org - MBSE Complex, Adaptive & Stochastic Systems
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From:
[hidden email] [mailto:
[hidden email]] On Behalf
Of Joost Rekveld
Sent: Monday, April 21, 2008 1:54 PM
To: The Friday Morning Applied Complexity Coffee Group
Subject: Re: [FRIAM] recap on Rosen
Hi Ken,
in the context of Rosen's objections to course of mathematics since
pythagoras, in what respect would CPPN's be any better than 'rules centered
agent based modelling' ?
I never heard about CPPN's; it seems interesting, but I can't really find
any examples of something they're better at than 'straight' CA or neural
networks ?
curious,
Joost.
On 21 Apr, 2008, at 5:29 PM, Ken Lloyd wrote:
Phil,
There is a fundamental quality in mathematics - equality - or reversibility,
if you will, that differs from nature. This means that there is a
directionality in natural processes that cannot be deconstructed. Prigogine
calls the lack of directional and temporal equality "far from equilibrium".
Mathematics works well at describing systems at equilibrium, and seems to
get progressively worse the further from equilibrium one gets. Emergence
creates an emergency, so to speak.
This has been my criticism of rules centered agent based modeling, which is
a theme from Wolfram, and why I have been researching compositional pattern
producing networks (CPPN's) evolved by HyperNEAT. It seems to take energy
to evolve.
The interesting thing is a paradigmatic difference between solving problems,
and recognizing solutions.
Ken
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Joost Rekveld
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http://www.lumen.nu/rekveld-------------------------------------------
"A is better off if B is better off."
(Heinz von Foerster)
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