From: ptkwt@... (Phil Tomson)
Date: 2005-09-07T02:11:28+09:00
Subject: Re: Particle Swarm Optimizer in Ruby?

In article <1125985976.709327.181890@g44g2000cwa.googlegroups.com>,
 <horndude77@gmail.com> wrote:
>I wrote one up as a ruby learning exercise. I'll post you the code if
>you like. (I'll probably have to go back through it to make sure
>there's nothing too embarassing) I don't think there's much out there
>otherwise. The algorithm itself is quite simple.
>(http://en.wikipedia.org/wiki/Particle_swarm_optimization) Consider
>coding it yourself if you like. Let me know.

I've started coding it.  Just thought I'd ask first to see if anyone had 
one already.  One question, though:  While the algorithm itself is rather 
simple it seems that the main complexity is in adapting it to some 
specific problems.  I want to use it to optimize an atomic cluster such 
that the configuration of the cluster and the distances between atoms 
result in a cluster which has minimum energy.  This means that each 
'particle' in the PSO needs to adjust the positions of atoms in the 
cluster (in 3D space) and then test the configuration.  Lots of 
parameters to consider (several atoms each with x,y,z to adjust)

>
>
>Maybe this would be a good ruby quiz?
>

Perhaps so.

Phil