vita::gaussian_evaluator< T > Class Template Reference

Gaussian distribution for multiclass object classification. More...

#include <evaluator.h>

Inherits vita::classification_evaluator< T >.

Public Member Functions
	gaussian_evaluator (dataframe &d)
std::unique_ptr< basic_lambda_f >	lambdify (const T &) const override
fitness_t	operator() (const T &) override
Public Member Functions inherited from vita::classification_evaluator< T >
	classification_evaluator (dataframe &d)
Public Member Functions inherited from vita::src_evaluator< T, DAT >
	src_evaluator (DAT &)
Public Member Functions inherited from vita::evaluator< T >
virtual fitness_t	fast (const T &)
virtual std::unique_ptr< basic_lambda_f >	lambdify (const T &) const
virtual bool	load (std::istream &)
virtual fitness_t	operator() (const T &)=0
virtual bool	save (std::ostream &) const
Public Member Functions inherited from vita::cached_evaluator
virtual void	clear ()
	Clear possible cached values. More...

Additional Inherited Members
Protected Attributes inherited from vita::src_evaluator< T, DAT >
DAT *	dat_

Detailed Description

template<class T>
class vita::gaussian_evaluator< T >

Gaussian distribution for multiclass object classification.

Instead of using predefined multiple thresholds to form different regions in the program output space for different classes, this approach uses probabilities of different classes, derived from Gaussian distributions, to construct the fitness function for classification.

See also

Using Gaussian Distribution to Construct Fitness Functions in Genetic Programming for Multiclass Object Classification

Definition at line 282 of file gp/src/evaluator.h.

Constructor & Destructor Documentation

gaussian_evaluator()

template<class T >

vita::gaussian_evaluator< T >::gaussian_evaluator ( dataframe &  d )

inlineexplicit

Definition at line 285 of file gp/src/evaluator.h.

Member Function Documentation

lambdify()

template<class T >

std::unique_ptr< basic_lambda_f > vita::gaussian_evaluator< T >::lambdify ( const T &  ) const

overridevirtual

Reimplemented from vita::evaluator< T >.

operator()()

template<class T >

fitness_t vita::gaussian_evaluator< T >::operator() ( const T &  )

overridevirtual

Returns

the fitness of the individual

Implements vita::evaluator< T >.

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

• gp/src/evaluator.h