Hi Ken,
thanks for this, i'll report back to base as soon as I'm done reading
(which might take a while)
ciao,
Joost.
On 21 Apr, 2008, at 10:12 PM, Ken Lloyd wrote:
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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[EMAIL PROTECTED] - MBSE Complex, Adaptive & Stochastic
Systems
[EMAIL PROTECTED] - Director of Education
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From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
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
-------------------------------------------
Joost Rekveld
----------- http://www.lumen.nu/rekveld
-------------------------------------------
"A is better off if B is better off.”
(Heinz von Foerster)
-------------------------------------------
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FRIAM Applied Complexity Group listserv
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============================================================
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
