Package gov.nih.mipav.model.algorithms

Class CeresSolver.TrustRegionMinimizer

java.lang.Object

gov.nih.mipav.model.algorithms.CeresSolver.Minimizer

gov.nih.mipav.model.algorithms.CeresSolver.TrustRegionMinimizer

Enclosing class:

CeresSolver

class CeresSolver.TrustRegionMinimizer
extends CeresSolver.Minimizer

Field Summary

Fields

Modifier and Type	Field	Description
private double	candidate_cost_
private java.util.Vector<java.lang.Double>	candidate_x_
private java.util.Vector<java.lang.Double>	delta_
private CeresSolver.Evaluator	evaluator_
private java.util.Vector<java.lang.Double>	gradient_
private java.util.Vector<java.lang.Double>	inner_iteration_x_
private boolean	inner_iterations_are_enabled_
private boolean	inner_iterations_were_useful_
private boolean	is_not_silent_
private double	iteration_start_time_in_secs_
(package private) CeresSolver.IterationSummary	iteration_summary_
private CeresSolver.SparseMatrix	jacobian_
private java.util.Vector<java.lang.Double>	jacobian_scaling_
private double	minimum_cost_
private double	model_cost_change_
private java.util.Vector<java.lang.Double>	model_residuals_
private java.util.Vector<java.lang.Double>	negative_gradient_
private int	num_consecutive_invalid_steps_
private int	num_effective_parameters_
private int	num_parameters_
private int	num_residuals_
private CeresSolver.MinimizerOptions	options_
private double[]	parameters_
private java.util.Vector<java.lang.Double>	projected_gradient_step_
private java.util.Vector<java.lang.Double>	residuals_
private CeresSolver.SolverSummary	solver_summary_
private double	start_time_in_secs_
private CeresSolver.TrustRegionStepEvaluator	step_evaluator_
private CeresSolver.TrustRegionStrategy	strategy_
private java.util.Vector<java.lang.Double>	trust_region_step_
private java.util.Vector<java.lang.Double>	x_
private double[]	x_cost_
private double	x_norm_

Constructor Summary

Constructors

Constructor	Description
TrustRegionMinimizer()

Method Summary

Modifier and Type	Method	Description
private void	ComputeCandidatePointAndEvaluateCost()
private boolean	ComputeTrustRegionStep()
private void	DoInnerIterationsIfNeeded()
private void	DoLineSearch(java.util.Vector<java.lang.Double> x, java.util.Vector<java.lang.Double> gradient, double cost, java.util.Vector<java.lang.Double> delta)
private boolean	EvaluateGradientAndJacobian(boolean new_evaluation_point)
private boolean	FinalizeIterationAndCheckIfMinimizerCanContinue()
private boolean	FunctionToleranceReached()
private boolean	GradientToleranceReached()
private boolean	HandleInvalidStep()
private boolean	HandleSuccessfulStep()
private void	HandleUnsuccessfulStep()
private void	Init(CeresSolver.MinimizerOptions options, double[] parameters, CeresSolver.SolverSummary solver_summary)
private boolean	IsStepSuccessful()
private boolean	IterationZero()
private boolean	MaxSolverIterationsReached()
private boolean	MaxSolverTimeReached()
void	Minimize(CeresSolver.MinimizerOptions options, double[] parameters, CeresSolver.SolverSummary solver_summary)
private boolean	MinTrustRegionRadiusReached()
private boolean	ParameterToleranceReached()

Methods inherited from class gov.nih.mipav.model.algorithms.CeresSolver.Minimizer

RunCallbacks

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

options_

private CeresSolver.MinimizerOptions options_

parameters_

private double[] parameters_

solver_summary_

private CeresSolver.SolverSummary solver_summary_

evaluator_

private CeresSolver.Evaluator evaluator_

jacobian_

private CeresSolver.SparseMatrix jacobian_

strategy_

private CeresSolver.TrustRegionStrategy strategy_

step_evaluator_

private CeresSolver.TrustRegionStepEvaluator step_evaluator_

is_not_silent_

private boolean is_not_silent_

inner_iterations_are_enabled_

private boolean inner_iterations_are_enabled_

inner_iterations_were_useful_

private boolean inner_iterations_were_useful_

iteration_summary_

CeresSolver.IterationSummary iteration_summary_

num_parameters_

private int num_parameters_

num_effective_parameters_

private int num_effective_parameters_

num_residuals_

private int num_residuals_

x_

private java.util.Vector<java.lang.Double> x_

residuals_

private java.util.Vector<java.lang.Double> residuals_

gradient_

private java.util.Vector<java.lang.Double> gradient_

inner_iteration_x_

private java.util.Vector<java.lang.Double> inner_iteration_x_

model_residuals_

private java.util.Vector<java.lang.Double> model_residuals_

negative_gradient_

private java.util.Vector<java.lang.Double> negative_gradient_

projected_gradient_step_

private java.util.Vector<java.lang.Double> projected_gradient_step_

trust_region_step_

private java.util.Vector<java.lang.Double> trust_region_step_

delta_

private java.util.Vector<java.lang.Double> delta_

candidate_x_

private java.util.Vector<java.lang.Double> candidate_x_

jacobian_scaling_

private java.util.Vector<java.lang.Double> jacobian_scaling_

x_norm_

private double x_norm_

x_cost_

private double[] x_cost_

minimum_cost_

private double minimum_cost_

model_cost_change_

private double model_cost_change_

candidate_cost_

private double candidate_cost_

start_time_in_secs_

private double start_time_in_secs_

iteration_start_time_in_secs_

private double iteration_start_time_in_secs_

num_consecutive_invalid_steps_

private int num_consecutive_invalid_steps_

Constructor Detail

TrustRegionMinimizer

public TrustRegionMinimizer()

Method Detail

Minimize

public void Minimize(CeresSolver.MinimizerOptions options,
                     double[] parameters,
                     CeresSolver.SolverSummary solver_summary)

Init

private void Init(CeresSolver.MinimizerOptions options,
                  double[] parameters,
                  CeresSolver.SolverSummary solver_summary)

IterationZero

private boolean IterationZero()

EvaluateGradientAndJacobian

private boolean EvaluateGradientAndJacobian(boolean new_evaluation_point)

FinalizeIterationAndCheckIfMinimizerCanContinue

private boolean FinalizeIterationAndCheckIfMinimizerCanContinue()

GradientToleranceReached

private boolean GradientToleranceReached()

MaxSolverIterationsReached

private boolean MaxSolverIterationsReached()

MaxSolverTimeReached

private boolean MaxSolverTimeReached()

MinTrustRegionRadiusReached

private boolean MinTrustRegionRadiusReached()

ComputeTrustRegionStep

private boolean ComputeTrustRegionStep()

HandleInvalidStep

private boolean HandleInvalidStep()

DoLineSearch

private void DoLineSearch(java.util.Vector<java.lang.Double> x,
                          java.util.Vector<java.lang.Double> gradient,
                          double cost,
                          java.util.Vector<java.lang.Double> delta)

ComputeCandidatePointAndEvaluateCost

private void ComputeCandidatePointAndEvaluateCost()

DoInnerIterationsIfNeeded

private void DoInnerIterationsIfNeeded()

ParameterToleranceReached

private boolean ParameterToleranceReached()

FunctionToleranceReached

private boolean FunctionToleranceReached()

IsStepSuccessful

private boolean IsStepSuccessful()

HandleSuccessfulStep

private boolean HandleSuccessfulStep()

HandleUnsuccessfulStep

private void HandleUnsuccessfulStep()