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lib/AI/PSO.pm  view on Meta::CPAN

#      within this range by first getting a random number and then subtracting it from the range.
#      e.g. 
#           $randomRange = 4.0
#           $meWeight   = random(0, $randomRange);
#           $themWeight = $randomRange - $meWeight.
#
#

#----------   END  GLOBAL PARAMETERS ------------

#---------- BEGIN GLOBAL DATA STRUCTURES --------
#
# a particle is a hash of arrays of positions and velocities:
#
# The position of a particle in the problem hyperspace is defined by the values in the position array...
# You can think of each array value as being a dimension,
# so in N-dimensional hyperspace, the size of the position vector is N
# 
# A particle updates its position according the Euler integration equation for physical motion:
#   Xi(t) = Xi(t-1) + Vi(t)
#   The velocity portion of this contains the stochastic elements of PSO and is defined as:

lib/AI/PSO.pm  view on Meta::CPAN

#   where P1 and P2 add are two random values who's sum adds up to the PSO random range (4.0)
#   and pi is the individual's best location
#   and pg is the global (or neighborhoods) best position
#
#   The velocity vector is obviously updated before the position vector...
#
#
my @particles = ();
my $user_fitness_function;
my @solution = ();
#----------   END GLOBAL DATA STRUCTURES --------


#---------- BEGIN EXPORTED SUBROUTINES ----------

#
# pso_set_params
#  - sets the global module parameters from the hash passed in
#
sub pso_set_params(%) {
    my (%params) = %{$_[0]};