ITK  4.1.0
Insight Segmentation and Registration Toolkit
Public Types | Public Member Functions | Static Public Member Functions | Protected Types | Protected Member Functions | Private Member Functions | Private Attributes
itk::LBFGSOptimizer Class Reference

#include <itkLBFGSOptimizer.h>

+ Inheritance diagram for itk::LBFGSOptimizer:
+ Collaboration diagram for itk::LBFGSOptimizer:

List of all members.

Public Types

typedef SmartPointer< const SelfConstPointer
typedef vnl_lbfgs InternalOptimizerType
typedef vnl_vector< double > InternalParametersType
typedef SmartPointer< SelfPointer
typedef LBFGSOptimizer Self
typedef
SingleValuedNonLinearVnlOptimizer 
Superclass

Public Member Functions

virtual ::itk::LightObject::Pointer CreateAnother (void) const
virtual double GetDefaultStepLength ()
virtual double GetGradientConvergenceTolerance ()
virtual double GetLineSearchAccuracy ()
virtual unsigned int GetMaximumNumberOfFunctionEvaluations ()
virtual const char * GetNameOfClass () const
vnl_lbfgs * GetOptimizer (void)
const std::string GetStopConditionDescription () const
virtual bool GetTrace ()
MeasureType GetValue () const
virtual void SetCostFunction (SingleValuedCostFunction *costFunction)
virtual void SetDefaultStepLength (double stp)
virtual void SetGradientConvergenceTolerance (double gtol)
virtual void SetLineSearchAccuracy (double tol)
virtual void SetMaximumNumberOfFunctionEvaluations (unsigned int n)
virtual void SetTrace (bool flag)
void StartOptimization (void)
virtual void TraceOff ()
virtual void TraceOn ()

Static Public Member Functions

static Pointer New ()

Protected Types

typedef
Superclass::CostFunctionAdaptorType 
CostFunctionAdaptorType

Protected Member Functions

 LBFGSOptimizer ()
void PrintSelf (std::ostream &os, Indent indent) const
virtual ~LBFGSOptimizer ()

Private Member Functions

 LBFGSOptimizer (const Self &)
void operator= (const Self &)

Private Attributes

double m_DefaultStepLength
double m_GradientConvergenceTolerance
double m_LineSearchAccuracy
unsigned int m_MaximumNumberOfFunctionEvaluations
bool m_OptimizerInitialized
std::ostringstream m_StopConditionDescription
bool m_Trace
InternalOptimizerTypem_VnlOptimizer

Detailed Description

Wrap of the vnl_lbfgs algorithm.

Definition at line 32 of file itkLBFGSOptimizer.h.


Member Typedef Documentation

Reimplemented from itk::SingleValuedNonLinearVnlOptimizer.

Definition at line 40 of file itkLBFGSOptimizer.h.

Reimplemented from itk::SingleValuedNonLinearVnlOptimizer.

Definition at line 114 of file itkLBFGSOptimizer.h.

Internal optimizer type.

Definition at line 52 of file itkLBFGSOptimizer.h.

InternalParameters typedef.

Definition at line 46 of file itkLBFGSOptimizer.h.

Reimplemented from itk::SingleValuedNonLinearVnlOptimizer.

Definition at line 39 of file itkLBFGSOptimizer.h.

Standard "Self" typedef.

Reimplemented from itk::SingleValuedNonLinearVnlOptimizer.

Definition at line 37 of file itkLBFGSOptimizer.h.

Reimplemented from itk::SingleValuedNonLinearVnlOptimizer.

Definition at line 38 of file itkLBFGSOptimizer.h.


Constructor & Destructor Documentation

virtual itk::LBFGSOptimizer::~LBFGSOptimizer ( ) [protected, virtual]
itk::LBFGSOptimizer::LBFGSOptimizer ( const Self ) [private]

Member Function Documentation

virtual::itk::LightObject::Pointer itk::LBFGSOptimizer::CreateAnother ( void  ) const [virtual]

Create an object from an instance, potentially deferring to a factory. This method allows you to create an instance of an object that is exactly the same type as the referring object. This is useful in cases where an object has been cast back to a base class.

Reimplemented from itk::SingleValuedNonLinearOptimizer.

virtual double itk::LBFGSOptimizer::GetDefaultStepLength ( ) [virtual]
virtual double itk::LBFGSOptimizer::GetLineSearchAccuracy ( ) [virtual]
virtual const char* itk::LBFGSOptimizer::GetNameOfClass ( ) const [virtual]

Run-time type information (and related methods).

Reimplemented from itk::SingleValuedNonLinearVnlOptimizer.

vnl_lbfgs* itk::LBFGSOptimizer::GetOptimizer ( void  )

Method for getting access to the internal optimizer.

const std::string itk::LBFGSOptimizer::GetStopConditionDescription ( ) const [virtual]

Get the reason for termination

Reimplemented from itk::Optimizer.

virtual bool itk::LBFGSOptimizer::GetTrace ( ) [virtual]

Return Current Value

static Pointer itk::LBFGSOptimizer::New ( ) [static]

Method for creation through the object factory.

Reimplemented from itk::SingleValuedNonLinearOptimizer.

void itk::LBFGSOptimizer::operator= ( const Self ) [private]

Types inherited from the superclass

Reimplemented from itk::SingleValuedNonLinearVnlOptimizer.

void itk::LBFGSOptimizer::PrintSelf ( std::ostream &  os,
Indent  indent 
) const [protected, virtual]

Print out internal state

Reimplemented from itk::SingleValuedNonLinearVnlOptimizer.

virtual void itk::LBFGSOptimizer::SetCostFunction ( SingleValuedCostFunction costFunction) [virtual]

Plug in a Cost Function into the optimizer

Implements itk::SingleValuedNonLinearVnlOptimizer.

virtual void itk::LBFGSOptimizer::SetDefaultStepLength ( double  stp) [virtual]

Set/Get the default step size. This is a positive real number with a default value of 1.0 which determines the stpe size in the line search.

virtual void itk::LBFGSOptimizer::SetGradientConvergenceTolerance ( double  gtol) [virtual]

Set/Get the gradient convergence tolerance. This is a positive real number that determines the accuracy with which the solution is to be found. The optimization terminates when: ||G|| < gtol max(1,||X||) where ||.|| denotes the Euclidean norm.

virtual void itk::LBFGSOptimizer::SetLineSearchAccuracy ( double  tol) [virtual]

Set/Get the line search accuracy. This is a positive real number with a default value of 0.9, which controls the accuracy of the line search. If the function and gradient evalutions are inexpensive with respect to the cost of the iterations it may be advantageous to set the value to a small value (say 0.1).

virtual void itk::LBFGSOptimizer::SetMaximumNumberOfFunctionEvaluations ( unsigned int  n) [virtual]

Set/Get the maximum number of function evaluations allowed.

virtual void itk::LBFGSOptimizer::SetTrace ( bool  flag) [virtual]

Set/Get the optimizer trace flag. If set to true, the optimizer prints out information every iteration.

void itk::LBFGSOptimizer::StartOptimization ( void  ) [virtual]

Start optimization with an initial value.

Reimplemented from itk::Optimizer.

virtual void itk::LBFGSOptimizer::TraceOff ( ) [virtual]
virtual void itk::LBFGSOptimizer::TraceOn ( ) [virtual]

Member Data Documentation

Definition at line 127 of file itkLBFGSOptimizer.h.

Definition at line 125 of file itkLBFGSOptimizer.h.

Definition at line 126 of file itkLBFGSOptimizer.h.

Definition at line 124 of file itkLBFGSOptimizer.h.

Definition at line 119 of file itkLBFGSOptimizer.h.

std::ostringstream itk::LBFGSOptimizer::m_StopConditionDescription [mutable, private]

Definition at line 121 of file itkLBFGSOptimizer.h.

Definition at line 123 of file itkLBFGSOptimizer.h.

Definition at line 120 of file itkLBFGSOptimizer.h.


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