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()