MathOpt::PSOConfig Struct Reference

Configuration for Particle Swarm Optimization. More...

#include <MathOpt_PSO.hxx>

Inheritance diagram for MathOpt::PSOConfig:

Public Member Functions
	PSOConfig ()
	Default constructor.
	PSOConfig (int theNbParticles, int theMaxIter=100, double theTolerance=1.0e-8)
	Constructor with parameters.
Public Member Functions inherited from MathUtils::NDimConfig
	NDimConfig ()=default
	Default constructor.
	NDimConfig (double theTolerance, int theMaxIter=100, bool theUseBounds=false)
	Constructor with tolerance.
Public Member Functions inherited from MathUtils::Config
	Config ()=default
	Default constructor with standard tolerances.
	Config (double theTolerance, int theMaxIter=100)
	Constructor with custom tolerance (sets all tolerances to same value).

Data Fields
int	NbParticles = 40
	Number of particles in the swarm.
double	Omega = 0.7
	Inertia weight (velocity decay)
double	PhiPersonal = 1.5
	Personal best attraction coefficient.
double	PhiGlobal = 1.5
	Global best attraction coefficient.
double	VelocityClamp = 0.5
	Max velocity as fraction of search space.
unsigned int	Seed = 6
	Random seed for reproducibility.
PSOInitMode	InitMode = PSOInitMode::RandomOnly
PSOBoundaryMode	BoundaryMode = PSOBoundaryMode::Clamp
PSOInertiaSchedule	InertiaSchedule = PSOInertiaSchedule::Constant
double	OmegaMin = 0.4
	Min inertia for LinearDecay.
int	MinIterations = 0
	Minimum iterations before convergence.
std::optional< double >	TargetValue
	Early stop if best <= target (nullopt = disabled)
double	NoImproveTol = 0.0
	Stagnation tolerance (0 = use Tolerance)
int	NoImproveIters = 10
	Stagnation iteration threshold.
double	RestartFraction = 0.0
	Fraction of particles to reinitialize (0 = no restarts)
int	MaxRestarts = 0
	Maximum restart count (0 = unlimited when fraction > 0)
int	PolishBudgetPerDim = 50
	Max polishing evals per dimension (0 = no polishing)
Data Fields inherited from MathUtils::NDimConfig
bool	UseBounds = false
	Whether to enforce bounds during optimization.
Data Fields inherited from MathUtils::Config
int	MaxIterations = 100
	Maximum number of iterations allowed.
double	Tolerance = 1.0e-10
	General convergence tolerance.
double	XTolerance = 1.0e-10
	Tolerance for solution change |x_{n+1} - x_n|.
double	FTolerance = 1.0e-10
	Tolerance for function value |f(x)|.
double	StepMin = std::numeric_limits<double>::epsilon()
	Minimum step size before declaring convergence or failure.

Detailed Description

Configuration for Particle Swarm Optimization.

Constructor & Destructor Documentation

PSOConfig() [1/2]

MathOpt::PSOConfig::PSOConfig ( )

inline

Default constructor.

PSOConfig() [2/2]

MathOpt::PSOConfig::PSOConfig ( int theNbParticles, int theMaxIter = 100, double theTolerance = 1.0e-8 )

inline

Constructor with parameters.

Field Documentation

BoundaryMode

PSOBoundaryMode MathOpt::PSOConfig::BoundaryMode = PSOBoundaryMode::Clamp

InertiaSchedule

PSOInertiaSchedule MathOpt::PSOConfig::InertiaSchedule = PSOInertiaSchedule::Constant

InitMode

PSOInitMode MathOpt::PSOConfig::InitMode = PSOInitMode::RandomOnly

MaxRestarts

int MathOpt::PSOConfig::MaxRestarts = 0

Maximum restart count (0 = unlimited when fraction > 0)

MinIterations

int MathOpt::PSOConfig::MinIterations = 0

Minimum iterations before convergence.

NbParticles

int MathOpt::PSOConfig::NbParticles = 40

Number of particles in the swarm.

NoImproveIters

int MathOpt::PSOConfig::NoImproveIters = 10

Stagnation iteration threshold.

NoImproveTol

double MathOpt::PSOConfig::NoImproveTol = 0.0

Stagnation tolerance (0 = use Tolerance)

Omega

double MathOpt::PSOConfig::Omega = 0.7

Inertia weight (velocity decay)

OmegaMin

double MathOpt::PSOConfig::OmegaMin = 0.4

Min inertia for LinearDecay.

PhiGlobal

double MathOpt::PSOConfig::PhiGlobal = 1.5

Global best attraction coefficient.

PhiPersonal

double MathOpt::PSOConfig::PhiPersonal = 1.5

Personal best attraction coefficient.

PolishBudgetPerDim

int MathOpt::PSOConfig::PolishBudgetPerDim = 50

Max polishing evals per dimension (0 = no polishing)

RestartFraction

double MathOpt::PSOConfig::RestartFraction = 0.0

Fraction of particles to reinitialize (0 = no restarts)

Seed

unsigned int MathOpt::PSOConfig::Seed = 6

Random seed for reproducibility.

TargetValue

std::optional<double> MathOpt::PSOConfig::TargetValue

Early stop if best <= target (nullopt = disabled)

VelocityClamp

double MathOpt::PSOConfig::VelocityClamp = 0.5

Max velocity as fraction of search space.

---

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

• MathOpt_PSO.hxx