[galib] PSO and galib

Dickinson, Bill dickinsw at CMG.MFLDCLIN.EDU
Thu Feb 3 07:22:31 EST 2005


	I know nothing about PSO, but, from your description it seems reasonable that the genetic operators could do their thing on particle vectors (alter their course and velocity), measure the affects of the changes against an objective function or functions, and then evolve.  


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Today's Topics:

   1. R: [galib] PSO and galib (Parikkala)
   2. Great Work (Camilo Muñoz)
   3. Re: release of galib 2.4.6 (Jonas Karlsson)


Date: Tue, 1 Feb 2005 15:14:20 +0100
From: "Parikkala" <parikkala at libero.it>
To: "Galib" <galib at mit.edu>
Subject: R: [galib] PSO and galib
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> Hi all,
> I do not know galib at all -- but the plan is to use it to implement a 
> GA based solution soon.  However, before getting to the "standard GA" 
> part of my problem, I have to implement a PSO algorithm first, hence 
> my question.
> "PSO shares many similarities with evolutionary computation techniques 
> such as Genetic Algorithms (GA). The system is initialized with a 
> population of random solutions and searches for optima by updating 
> generations. However, unlike GA, PSO has no evolution operators such 
> as crossover and mutation. In PSO, the potential solutions, called 
> particles, fly through the problem space by following the current 
> optimum particles." (Quoted from: http://www.swarmintelligence.org)
> Does it make sense to use galib to implement a Particle Swarm 
> Optimisation algorithm, or should I code it from scratch?
> Thank you for your response,
> Willem

3 options:

1) code it yourself
2) find a (C++ possibly since you are using Galib) PSO library
3) take a look at Gaul. It is a C ga library but has a lot of other algorithm. Maybe PSO is also there!



Date: Tue, 01 Feb 2005 12:40:45 -0500
From: "Camilo Muñoz" <guanabanazo at hotmail.com>
To: galib at mit.edu
Subject: [galib] Great Work
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<html><div style='background-color:'><P>Thank you Matthew!</P> <P>BTW, is anyone interested in extending Python with GAlib? Drop me a email.</P> <P>K-milo</P></div><br clear=all><hr>FREE pop-up blocking with the new MSN Toolbar <a href="http://g.msn.com/8HMBEN/2752??PS=47575" target="_top">MSN Toolbar</a> Get it now!</html>


Date: Tue, 1 Feb 2005 21:22:35 -0500
From: Jonas Karlsson <thejonas at gmail.com>
To: galib at mit.edu
Subject: Re: [galib] release of galib 2.4.6
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On Mon, 31 Jan 2005 11:32:08 -0500, matthew wall <mbwall at mit.edu> wrote:
> galib version 2.4.6 is now available at http://lancet.mit.edu/ga/dist

Excellent timing - thank you!

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