TransformedObjectiveFunction Class Reference

objective function with a linear transformation applied to the search space $ R^n $ More...

#include <ObjectiveFunction.h>

Inheritance diagram for TransformedObjectiveFunction:

ObjectiveFunctionVS< double > ObjectiveFunctionT< T * > ObjectiveFunction Cigar CIGTAB1 DiffPowRotated ELLI1 Paraboloid RosenbrockRotated SchwefelEllipsoidRotated Tablet Twoaxis

List of all members.

Public Member Functions

 TransformedObjectiveFunction (ObjectiveFunctionVS< double > &base, unsigned d=0)
 Constructor.
 TransformedObjectiveFunction (ObjectiveFunctionVS< double > &base, const Array< double > &transformation)
 Constructor.
 ~TransformedObjectiveFunction ()
 Destructor.
void init (const Array< double > &transformation)
 Explicitly set the transformation.
void initRandomRotation (unsigned d=0)
 Create a random orthogonal transformation.
const Matrix & Transformation () const
 Retreive the transformation matrix.
void result (const Array< double > &point, std::vector< double > &value)
 objective function evaluation
void result (const std::vector< double > &point, std::vector< double > &value)
 objective function evaluation
void result (double *const &point, std::vector< double > &value)
 objective function evaluation
bool ProposeStartingPoint (double *&point) const
 propose a transformed starting point
void transform (Array< double > &point) const
 point is multiplied with m_Transformation
void transform (std::vector< double > &point) const
 point is multiplied with m_Transformation
void transform (double *point) const
 point is multiplied with m_Transformation
bool utopianFitness (std::vector< double > &value) const
 call to utopianFitness of the base objective function
bool nadirFitness (std::vector< double > &value) const
 call to nadirFitness of the base objective function
unsigned int objectives () const
 return the number of objectives to optimize

Protected Member Functions

void transform (const double *in, std::vector< double > &out) const
 transform in, resulting in out
void transformInverse (const std::vector< double > &in, double *out) const
 inverse transform in, resulting in out

Protected Attributes

ObjectiveFunctionVS< double > & baseObjective
 non-transformed objective function
Matrix m_Transformation
 transformation matrix

Detailed Description

objective function with a linear transformation applied to the search space $ R^n $

This specialized class represents an objective function with a linear transformation of the search vector space.

Definition at line 425 of file ObjectiveFunction.h.

Constructor & Destructor Documentation

TransformedObjectiveFunction::TransformedObjectiveFunction ( ObjectiveFunctionVS< double > &  base,
unsigned  d = 0 
)

Constructor.

Definition at line 141 of file ObjectiveFunction.cpp.

References initRandomRotation().

TransformedObjectiveFunction::TransformedObjectiveFunction ( ObjectiveFunctionVS< double > &  base,
const Array< double > &  transformation 
)

Constructor.

Definition at line 148 of file ObjectiveFunction.cpp.

References baseObjective, ObjectiveFunctionVS< T >::dimension(), init(), and ObjectiveFunctionVS< double >::m_dimension.

TransformedObjectiveFunction::~TransformedObjectiveFunction (  ) 

Destructor.

Definition at line 156 of file ObjectiveFunction.cpp.

Member Function Documentation

void TransformedObjectiveFunction::init ( const Array< double > &  transformation  ) 

Explicitly set the transformation.

Definition at line 161 of file ObjectiveFunction.cpp.

References baseObjective, ObjectiveFunctionVS< T >::init(), ObjectiveFunctionVS< double >::m_dimension, and m_Transformation.

Referenced by TransformedObjectiveFunction().

void TransformedObjectiveFunction::initRandomRotation ( unsigned  d = 0  ) 

Create a random orthogonal transformation.

Definition at line 170 of file ObjectiveFunction.cpp.

References baseObjective, ObjectiveFunctionVS< T >::dimension(), ObjectiveFunctionVS< T >::init(), ObjectiveFunctionVS< double >::m_dimension, and m_Transformation.

Referenced by TransformedObjectiveFunction().

bool TransformedObjectiveFunction::nadirFitness ( std::vector< double > &  value  )  const [virtual]

call to nadirFitness of the base objective function

Reimplemented from ObjectiveFunctionVS< double >.

Definition at line 222 of file ObjectiveFunction.cpp.

References baseObjective, and ObjectiveFunctionVS< T >::nadirFitness().

unsigned int TransformedObjectiveFunction::objectives (  )  const [virtual]

return the number of objectives to optimize

Implements ObjectiveFunction.

Reimplemented in ELLI1, and CIGTAB1.

Definition at line 227 of file ObjectiveFunction.cpp.

References baseObjective, and ObjectiveFunction::objectives().

bool TransformedObjectiveFunction::ProposeStartingPoint ( double *&  point  )  const

propose a transformed starting point

Reimplemented in ELLI1, and CIGTAB1.

Examples:
SchwefelEllipsoidCMSA.cpp.

Definition at line 205 of file ObjectiveFunction.cpp.

References baseObjective, ObjectiveFunctionVS< double >::m_dimension, and transformInverse().

void TransformedObjectiveFunction::result ( double *const &  point,
std::vector< double > &  value 
)

objective function evaluation

Definition at line 198 of file ObjectiveFunction.cpp.

References baseObjective, ObjectiveFunctionVS< double >::m_dimension, ObjectiveFunction::m_timesCalled, and transform().

void TransformedObjectiveFunction::result ( const std::vector< double > &  point,
std::vector< double > &  value 
) [inline]

objective function evaluation

Definition at line 453 of file ObjectiveFunction.h.

References ObjectiveFunctionVS< double >::m_dimension, and result().

void TransformedObjectiveFunction::result ( const Array< double > &  point,
std::vector< double > &  value 
) [inline]

objective function evaluation

Definition at line 446 of file ObjectiveFunction.h.

References ObjectiveFunctionVS< double >::m_dimension.

Referenced by result().

void TransformedObjectiveFunction::transform ( const double *  in,
std::vector< double > &  out 
) const [protected]

transform in, resulting in out

Definition at line 232 of file ObjectiveFunction.cpp.

References ObjectiveFunctionVS< double >::m_dimension, and m_Transformation.

void TransformedObjectiveFunction::transform ( double *  point  )  const [inline]

point is multiplied with m_Transformation

Definition at line 484 of file ObjectiveFunction.h.

References ObjectiveFunctionVS< double >::m_dimension, and transform().

void TransformedObjectiveFunction::transform ( std::vector< double > &  point  )  const [inline]

point is multiplied with m_Transformation

Definition at line 475 of file ObjectiveFunction.h.

References ObjectiveFunctionVS< double >::m_dimension, and transform().

void TransformedObjectiveFunction::transform ( Array< double > &  point  )  const [inline]

point is multiplied with m_Transformation

Definition at line 466 of file ObjectiveFunction.h.

References ObjectiveFunctionVS< double >::m_dimension.

Referenced by result(), and transform().

const Matrix& TransformedObjectiveFunction::Transformation (  )  const [inline]

Retreive the transformation matrix.

Definition at line 443 of file ObjectiveFunction.h.

References m_Transformation.

void TransformedObjectiveFunction::transformInverse ( const std::vector< double > &  in,
double *  out 
) const [protected]

inverse transform in, resulting in out

Definition at line 242 of file ObjectiveFunction.cpp.

References ObjectiveFunctionVS< double >::m_dimension, and m_Transformation.

Referenced by ProposeStartingPoint().

bool TransformedObjectiveFunction::utopianFitness ( std::vector< double > &  value  )  const [virtual]

call to utopianFitness of the base objective function

Reimplemented from ObjectiveFunctionVS< double >.

Definition at line 217 of file ObjectiveFunction.cpp.

References baseObjective, and ObjectiveFunctionVS< T >::utopianFitness().

Member Data Documentation

ObjectiveFunctionVS<double>& TransformedObjectiveFunction::baseObjective [protected]

non-transformed objective function

Definition at line 508 of file ObjectiveFunction.h.

Referenced by init(), initRandomRotation(), nadirFitness(), objectives(), ProposeStartingPoint(), result(), TransformedObjectiveFunction(), and utopianFitness().

Matrix TransformedObjectiveFunction::m_Transformation [protected]

transformation matrix

Definition at line 511 of file ObjectiveFunction.h.

Referenced by Cigar::Cigar(), init(), initRandomRotation(), Paraboloid::Paraboloid(), Tablet::Tablet(), transform(), Transformation(), transformInverse(), and Twoaxis::Twoaxis().

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