moeoAchievementFitnessAssignment< MOEOT > Class Template Reference

Fitness assignment sheme based on the achievement scalarizing function propozed by Wiersbicki (1980). More...

#include <moeoAchievementFitnessAssignment.h>

Inheritance diagram for moeoAchievementFitnessAssignment< MOEOT >:

List of all members.

Public Types
typedef MOEOT::ObjectiveVector	ObjectiveVector
	the objective vector type of the solutions
Public Member Functions
	moeoAchievementFitnessAssignment (ObjectiveVector &_reference, std::vector< double > &_lambdas, double _spn=0.0001)
	Default ctor.
	moeoAchievementFitnessAssignment (ObjectiveVector &_reference, double _spn=0.0001)
	Ctor with default values for lambdas (1/nObjectives).
virtual void	operator() (eoPop< MOEOT > &_pop)
	Sets the fitness values for every solution contained in the population _pop.
void	updateByDeleting (eoPop< MOEOT > &_pop, ObjectiveVector &_objVec)
	Updates the fitness values of the whole population _pop by taking the deletion of the objective vector _objVec into account (nothing to do).
void	setReference (const ObjectiveVector &_reference)
	Sets the reference point.
Private Member Functions
double	inf () const
	Returns a big value (regarded as infinite).
void	compute (MOEOT &_moeo)
	Computes the fitness value for a solution.
Private Attributes
ObjectiveVector	reference
	the reference point
std::vector< double >	lambdas
	the weighted coefficients vector
double	spn
	an arbitrary small positive number (0 < _spn << 1)

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Detailed Description

template<class MOEOT>
class moeoAchievementFitnessAssignment< MOEOT >

Fitness assignment sheme based on the achievement scalarizing function propozed by Wiersbicki (1980).

Definition at line 24 of file moeoAchievementFitnessAssignment.h.

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Constructor & Destructor Documentation

template<class MOEOT>

moeoAchievementFitnessAssignment< MOEOT >::moeoAchievementFitnessAssignment	(	ObjectiveVector &	_reference,
		std::vector< double > &	_lambdas,
		double	_spn = 0.0001
	)			[inline]

Default ctor.

Parameters:

	_reference	reference point vector
	_lambdas	weighted coefficients vector
	_spn	arbitrary small positive number (0 < _spn << 1)

Definition at line 38 of file moeoAchievementFitnessAssignment.h.

References moeoAchievementFitnessAssignment< MOEOT >::spn.

template<class MOEOT>

moeoAchievementFitnessAssignment< MOEOT >::moeoAchievementFitnessAssignment	(	ObjectiveVector &	_reference,
		double	_spn = 0.0001
	)			[inline]

Ctor with default values for lambdas (1/nObjectives).

Parameters:

	_reference	reference point vector
	_spn	arbitrary small positive number (0 < _spn << 1)

Definition at line 54 of file moeoAchievementFitnessAssignment.h.

References moeoAchievementFitnessAssignment< MOEOT >::lambdas, and moeoAchievementFitnessAssignment< MOEOT >::spn.

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Member Function Documentation

template<class MOEOT>

virtual void moeoAchievementFitnessAssignment< MOEOT >::operator()

(

eoPop< MOEOT > &

_pop

)

[inline, virtual]

Sets the fitness values for every solution contained in the population _pop.

Parameters:

_pop

the population

Implements eoUF< eoPop< MOEOT > &, void >.

Definition at line 75 of file moeoAchievementFitnessAssignment.h.

References moeoAchievementFitnessAssignment< MOEOT >::compute().

template<class MOEOT>

void moeoAchievementFitnessAssignment< MOEOT >::updateByDeleting	(	eoPop< MOEOT > &	_pop,
		ObjectiveVector &	_objVec
	)			[inline, virtual]

Updates the fitness values of the whole population _pop by taking the deletion of the objective vector _objVec into account (nothing to do).

Parameters:

	_pop	the population
	_objVec	the objective vector

Implements moeoFitnessAssignment< MOEOT >.

Definition at line 89 of file moeoAchievementFitnessAssignment.h.

template<class MOEOT>

void moeoAchievementFitnessAssignment< MOEOT >::setReference

(

const ObjectiveVector &

_reference

)

[inline]

Sets the reference point.

Parameters:

_reference

the new reference point

Definition at line 99 of file moeoAchievementFitnessAssignment.h.

References moeoAchievementFitnessAssignment< MOEOT >::reference.

template<class MOEOT>

void moeoAchievementFitnessAssignment< MOEOT >::compute

(

MOEOT &

_moeo

)

[inline, private]

Computes the fitness value for a solution.

Parameters:

_moeo

the solution

Definition at line 128 of file moeoAchievementFitnessAssignment.h.

References moeoAchievementFitnessAssignment< MOEOT >::inf(), moeoAchievementFitnessAssignment< MOEOT >::lambdas, moeoAchievementFitnessAssignment< MOEOT >::reference, and moeoAchievementFitnessAssignment< MOEOT >::spn.

Referenced by moeoAchievementFitnessAssignment< MOEOT >::operator()().

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

• moeoAchievementFitnessAssignment.h

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