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From ml-connectionists-request@q.cs.cmu.edu Fri May 28 15:21:24 1993
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Date: Fri, 28 May 93 16:48:00 +0200
From: "Egbert J.W. Boers" <boers@wi.leidenuniv.nl>
Message-Id: <9305281448.AA06007@rulwi>
To: Connectionists@cs.cmu.edu
Subject: TR announcement: Biological Metaphors and the Design of Modular Artificial Neural Networks
Status: R
FTP-host: archive.cis.ohio-state.edu
FTP-filename: /pub/neuroprose/boers.biological-metaphors.ps.Z
The file boers.biological-metaphors.ps.Z (104 pages) is now available for
copying from the Neuroprose repository:
Biological metaphors
and the design of modular
artificial neural networks
Egbert J.W. Boers, Herman Kuiper
Leiden University
The Netherlands
ABSTRACT: In this thesis, a method is proposed with which good modular
artificial neural network structures can be found automatically using a
computer program. A number of biological metaphors are incorporated in
the method. It will be argued that modular artificial neural networks
have a better performance than their non-modular counterparts. The human
brain can also be seen as a modular neural network, and the proposed
search method is based on the natural process that resulted in the brain:
Genetic algorithms are used to imitate evolution, and L-systems are used
to model the kind of recipes nature uses in biological growth.
A small number of experiments have been done to investigate the
possibilities of the method. Preliminary results show that the method
does find modular networks, and that those networks outperform 'standard'
solutions. The method looks very promising, although the experiments
done were too limited to draw any general conclusions. One drawback is
the large amount of computing time needed to evaluate the quality of a
population member, and therefore in chapter 9 a number of possible
improvements are given on how to increase the speed of the method, as
well as a number of suggestions on how to continue from here.
Unfortunately, I'm not in the position to distribute paper-copies of this
thesis. Questions and remarks are most welcome.
Egbert Boers
Leiden University
The Netherlands
boers@wi.LeidenUniv.nl