moeoIndicatorBasedFitnessAssignment(3)

NAME
moeoIndicatorBasedFitnessAssignment - Fitness assignment sheme based an Indicator proposed in: E.

SYNOPSIS

#include <moeoIndicatorBasedFitnessAssignment.h>

Inherits moeoParetoBasedFitnessAssignment< MOEOT >< MOEOT >.

  Public Types
typedef MOEOT::ObjectiveVector ObjectiveVector
The type of objective vector.

  Public Member Functions
moeoIndicatorBasedFitnessAssignment (moeoNormalizedSolutionVsSolutionBinaryMetric< ObjectiveVector, double > *_metric, const double _kappa)
Ctor.
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.
double updateByAdding (eoPop< MOEOT > &_pop, ObjectiveVector &_objVec)
Updates the fitness values of the whole population _pop by taking the adding of the objective vector _objVec into account and returns the fitness value of _objVec.

  Protected Member Functions
void setup (const eoPop< MOEOT > &_pop)
Sets the bounds for every objective using the min and the max value for every objective vector of _pop.
void computeValues (const eoPop< MOEOT > &_pop)
Compute every indicator value in values (values[i] = I(_v[i], _o)).
void setFitnesses (eoPop< MOEOT > &_pop)
Sets the fitness value of the whple population.
double computeFitness (const unsigned _idx)
Returns the fitness value of the _idx th individual of the population.

  Protected Attributes
moeoNormalizedSolutionVsSolutionBinaryMetric< ObjectiveVector, double > * metric
the quality indicator
double kappa
the scaling factor
std::vector< std::vector< double > > values
the computed indicator values

Detailed Description

  template<class MOEOT> class moeoIndicatorBasedFitnessAssignment< MOEOT >
Fitness assignment sheme based an Indicator proposed in: E. Zitzler, S. Künzli, 'Indicator-Based Selection in Multiobjective Search', Proc. 8th International Conference on Parallel Problem Solving from Nature (PPSN VIII), pp. 832-842, Birmingham, UK (2004). This strategy is, for instance, used in IBEA.

Definition at line 28 of file moeoIndicatorBasedFitnessAssignment.h.

Constructor & Destructor Documentation

  template<class MOEOT> moeoIndicatorBasedFitnessAssignment< MOEOT >::moeoIndicatorBasedFitnessAssignment (moeoNormalizedSolutionVsSolutionBinaryMetric< ObjectiveVector, double > * _metric, const double _kappa) [inline]

Ctor.

Parameters:
    _metric the quality indicator
    _kappa the scaling factor

Definition at line 41 of file moeoIndicatorBasedFitnessAssignment.h.

Member Function Documentation

  template<class MOEOT> void moeoIndicatorBasedFitnessAssignment< 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 49 of file moeoIndicatorBasedFitnessAssignment.h.

References moeoIndicatorBasedFitnessAssignment< MOEOT >::computeValues(), moeoIndicatorBasedFitnessAssignment< MOEOT >::setFitnesses(), and moeoIndicatorBasedFitnessAssignment< MOEOT >::setup().

  template<class MOEOT> void moeoIndicatorBasedFitnessAssignment< 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.

Parameters:
    _pop the population
    _objVec the objective vector

Implements moeoFitnessAssignment< MOEOT >.

Definition at line 65 of file moeoIndicatorBasedFitnessAssignment.h.

References moeoIndicatorBasedFitnessAssignment< MOEOT >::kappa, and moeoIndicatorBasedFitnessAssignment< MOEOT >::metric.

  template<class MOEOT> double moeoIndicatorBasedFitnessAssignment< MOEOT >::updateByAdding (eoPop< MOEOT > & _pop, ObjectiveVector & _objVec) [inline]

Updates the fitness values of the whole population _pop by taking the adding of the objective vector _objVec into account and returns the fitness value of _objVec.

Parameters:
    _pop the population
    _objVec the objective vector

Definition at line 86 of file moeoIndicatorBasedFitnessAssignment.h.

References moeoIndicatorBasedFitnessAssignment< MOEOT >::kappa, and moeoIndicatorBasedFitnessAssignment< MOEOT >::metric.

  template<class MOEOT> void moeoIndicatorBasedFitnessAssignment< MOEOT >::setup (const eoPop< MOEOT > & _pop) [inline, protected]

Sets the bounds for every objective using the min and the max value for every objective vector of _pop.

Parameters:
    _pop the population

Definition at line 129 of file moeoIndicatorBasedFitnessAssignment.h.

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

  template<class MOEOT> void moeoIndicatorBasedFitnessAssignment< MOEOT >::computeValues (const eoPop< MOEOT > & _pop) [inline, protected]

Compute every indicator value in values (values[i] = I(_v[i], _o)).

Parameters:
    _pop the population

Definition at line 151 of file moeoIndicatorBasedFitnessAssignment.h.

References moeoIndicatorBasedFitnessAssignment< MOEOT >::values.

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

  template<class MOEOT> void moeoIndicatorBasedFitnessAssignment< MOEOT >::setFitnesses (eoPop< MOEOT > & _pop) [inline, protected]

Sets the fitness value of the whple population.

Parameters:
    _pop the population

Definition at line 173 of file moeoIndicatorBasedFitnessAssignment.h.

References moeoIndicatorBasedFitnessAssignment< MOEOT >::computeFitness().

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

  template<class MOEOT> double moeoIndicatorBasedFitnessAssignment< MOEOT >::computeFitness (const unsigned _idx) [inline, protected]

Returns the fitness value of the _idx th individual of the population.

Parameters:
    _idx the index

Definition at line 186 of file moeoIndicatorBasedFitnessAssignment.h.

References moeoIndicatorBasedFitnessAssignment< MOEOT >::kappa, and moeoIndicatorBasedFitnessAssignment< MOEOT >::values.

Referenced by moeoIndicatorBasedFitnessAssignment< MOEOT >::setFitnesses().

Author

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