eoExtendedVelocity< POT > Class Template Reference

Extended velocity performer for particle swarm optimization. More...

#include <eoExtendedVelocity.h>

Inheritance diagram for eoExtendedVelocity< POT >:

List of all members.

Public Types
typedef POT::ParticleVelocityType	VelocityType
Public Member Functions
	eoExtendedVelocity (eoTopology< POT > &_topology, const VelocityType &_w, const VelocityType &_c1, const VelocityType &_c2, const VelocityType &_c3, eoRealVectorBounds &_bounds, eoRealBoundModifier &_bndsModifier, eoRng &_gen=rng)
	Full constructor: Bounds and bound modifier required.
	eoExtendedVelocity (eoTopology< POT > &_topology, const VelocityType &_w, const VelocityType &_c1, const VelocityType &_c2, const VelocityType &_c3, eoRealVectorBounds &_bounds, eoRng &_gen=rng)
	Constructor: No bound updater required <-> fixed bounds.
	eoExtendedVelocity (eoTopology< POT > &_topology, const VelocityType &_w, const VelocityType &_c1, const VelocityType &_c2, const VelocityType &_c3, eoRng &_gen=rng)
	Constructor: Neither bounds nor bound updater required <-> free velocity.
void	operator() (POT &_po, unsigned _indice)
	Evaluate the new velocities of the given particle.
void	updateNeighborhood (POT &_po, unsigned _indice)
	Update the neighborhood.
eoTopology< POT > &	getTopology ()
	eoTopology<POT> getTopology
Protected Attributes
eoTopology< POT > &	topology
const VelocityType &	omega
const VelocityType &	c1
const VelocityType &	c2
const VelocityType &	c3
eoRealVectorBounds	bounds
eoRealBoundModifier &	bndsModifier
eoRng &	gen
eoDummyRealBoundModifier	dummyModifier

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Detailed Description

template<class POT>
class eoExtendedVelocity< POT >

Extended velocity performer for particle swarm optimization.

Derivated from abstract eoVelocity, At step t: v(t+1)= w * v(t) + c1 * r1 * ( xbest(t)-x(t) ) + c2 * r2 * ( lbest(t) - x(t) ) + c3 * r3 * ( gbest(t) - x(t) ) It includes both a "topology" best and a global best in the social knowledge. Each topology provides a method to retrieve the global best <=> the best of all the neighborhood the topology contains.

Definition at line 43 of file eoExtendedVelocity.h.

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Constructor & Destructor Documentation

template<class POT> eoExtendedVelocity< POT >::eoExtendedVelocity (  eoTopology< POT > &  _topology, const VelocityType &  _w, const VelocityType &  _c1, const VelocityType &  _c2, const VelocityType &  _c3, eoRealVectorBounds &  _bounds, eoRealBoundModifier &  _bndsModifier, eoRng &  _gen = rng )  [inline]

Full constructor: Bounds and bound modifier required. Parameters: _topology  - The topology _w  - The weight factor. _c1  - Learning factor used for the particle's best. Type must be POT::ParticleVelocityType _c2  - Learning factor used for the local best _c3  - Learning factor used for the global best _bounds  - An eoRealBaseVectorBounds: real bounds for real velocities. If the velocities are not real, they won't be bounded by default. Should have a eoBounds ? _boundsModifier  - An eoRealBoundModifier used to modify the bounds (for real bounds only). _gen  - The eo random generator, default=rng Definition at line 64 of file eoExtendedVelocity.h.

template<class POT> eoExtendedVelocity< POT >::eoExtendedVelocity (  eoTopology< POT > &  _topology, const VelocityType &  _w, const VelocityType &  _c1, const VelocityType &  _c2, const VelocityType &  _c3, eoRealVectorBounds &  _bounds, eoRng &  _gen = rng )  [inline]

Constructor: No bound updater required <-> fixed bounds. Parameters: _topology  - The topology _w  - The weight factor. _c1  - The second learning factor used for the particle's best. Type must be POT::ParticleVelocityType _c2  - The third learning factor used for the local best. Type must be POT::ParticleVelocityType _c3  - Learning factor used for the global best _bounds  - An eoRealBaseVectorBounds: real bounds for real velocities. If the velocities are not real, they won't be bounded by default. Should have a eoBounds ? _gen  - The eo random generator, default=rng Definition at line 92 of file eoExtendedVelocity.h.

template<class POT> eoExtendedVelocity< POT >::eoExtendedVelocity (  eoTopology< POT > &  _topology, const VelocityType &  _w, const VelocityType &  _c1, const VelocityType &  _c2, const VelocityType &  _c3, eoRng &  _gen = rng )  [inline]

Constructor: Neither bounds nor bound updater required <-> free velocity. Parameters: _topology  - The topology _w  - The weight factor. _c1  - The second learning factor used for the particle's best. Type must be POT::ParticleVelocityType _c2  - The third learning factor used for the local best. Type must be POT::ParticleVelocityType _c3  - Learning factor used for the global best _gen  - The eo random generator, default=rng Definition at line 117 of file eoExtendedVelocity.h.

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Member Function Documentation

template<class POT> void eoExtendedVelocity< POT >::operator() (  POT &  _po, unsigned  _indice )  [inline, virtual]

Evaluate the new velocities of the given particle. Need an indice to identify the particle into the topology. Parameters: _po  - A particle _indice  - The indice (into the topology) of the given particle Implements eoBF< POT &, unsigned, void >. Definition at line 140 of file eoExtendedVelocity.h. References eoRealVectorBounds::adjust_size(), eoRealBaseVectorBounds::isMaxBounded(), eoRealBaseVectorBounds::isMinBounded(), eoRealBaseVectorBounds::maximum(), eoRealBaseVectorBounds::minimum(), and eoRng::uniform().

template<class POT> eoTopology<POT>& eoExtendedVelocity< POT >::getTopology (   )  [inline, virtual]

eoTopology<POT> getTopology Returns: topology Implements eoVelocity< POT >. Definition at line 185 of file eoExtendedVelocity.h.

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The documentation for this class was generated from the following file:

• eoExtendedVelocity.h

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