highprecisionpso::SortingFunction Class Reference

This class implements a function, which measures the sortedness of the position entries. More...

#include <sorting_function.h>

Inheritance diagram for highprecisionpso::SortingFunction:

Public Member Functions

mpf_t * DistanceTo1DLocalOptimum (const std::vector< mpf_t * > &pos, int d)
 Calculates for a position and a dimension the next local optimum if only the value of the position in the specified dimension is varied and returns the distance to it. More...
 
mpf_t * Eval (const std::vector< mpf_t * > &pos)
 Returns the number of adjacent swaps, which are needed to sort the position vector. More...
 
std::string GetName ()
 Returns a string representation of this object. More...
 
- Public Member Functions inherited from highprecisionpso::Function
 Function ()
 A constructor. More...
 
 Function (double search_space_lower_bound, double search_space_upper_bound)
 A constructor, specifying the lower and upper search space bounds. More...
 
 Function (std::vector< double > search_space_lower_bound, std::vector< double > search_space_upper_bound)
 A constructor specifying the lower and upper search space bounds. More...
 
virtual ~Function ()
 The destructor. More...
 
virtual mpf_t * DistanceTo1DLocalOptimumTernarySearch (const std::vector< mpf_t * > &pos, int d, mpf_t *start_distance)
 Calculates for a position and a dimension the next local optimum if only the value of the position in the specified dimension is varied and returns the distance to it. More...
 
mpf_t * Evaluate (const std::vector< mpf_t * > &pos)
 This is the initial function for evaluation of a position. More...
 
virtual std::vector< mpf_t * > GetLowerSearchSpaceBound ()
 Returns the lower search space bound of the search space for this objective function. More...
 
virtual std::vector< mpf_t * > GetUpperSearchSpaceBound ()
 Returns the upper search space bound of the search space for this objective function. More...
 
void InitSearchSpaceBounds ()
 Initializes the search space bounds. More...
 
void SetFunctionBound (SearchSpaceBound *search_space_bound)
 Updates the bound of the search space according to the given data. More...
 

Detailed Description

This class implements a function, which measures the sortedness of the position entries.

Member Function Documentation

mpf_t* highprecisionpso::SortingFunction::DistanceTo1DLocalOptimum ( const std::vector< mpf_t * > &  pos,
int  d 
)
virtual

Calculates for a position and a dimension the next local optimum if only the value of the position in the specified dimension is varied and returns the distance to it.

The sorting function performs piecewise constant. Therefore always zero is returned.

Parameters
posThe position.
dThe index of the observed dimension.
Returns
Zero.

Reimplemented from highprecisionpso::Function.

mpf_t* highprecisionpso::SortingFunction::Eval ( const std::vector< mpf_t * > &  pos)
virtual

Returns the number of adjacent swaps, which are needed to sort the position vector.

Parameters
posThe position vector.
Returns
a=0..D-1b=a+1..D-1(pos[a]≥pos[b]),

where (pos[a]≥pos[b]) is 1 if the inequation holds and 0 otherwise.

Implements highprecisionpso::Function.

std::string highprecisionpso::SortingFunction::GetName ( )
virtual

Returns a string representation of this object.

Returns
The name of the object.

Implements highprecisionpso::Function.


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