CPRCEvaluation Class Reference

Detailed Description

Class PRCEvaluation used to evaluate PRC (Precision Recall Curve) and an area under PRC curve (auPRC).

Definition at line 25 of file PRCEvaluation.h.

Inheritance diagram for CPRCEvaluation:

Public Member Functions
	CPRCEvaluation ()
virtual	~CPRCEvaluation ()
virtual const char *	get_name () const
virtual float64_t	evaluate (CLabels *predicted, CLabels *ground_truth)
EEvaluationDirection	get_evaluation_direction ()
float64_t	get_auPRC ()
SGMatrix< float64_t >	get_PRC ()
SGVector< float64_t >	get_thresholds ()
Public Member Functions inherited from CBinaryClassEvaluation
	CBinaryClassEvaluation ()
virtual	~CBinaryClassEvaluation ()
Public Member Functions inherited from CEvaluation
	CEvaluation ()
virtual	~CEvaluation ()
Public Member Functions inherited from CSGObject
	CSGObject ()
	CSGObject (const CSGObject &orig)
virtual	~CSGObject ()
virtual bool	is_generic (EPrimitiveType *generic) const
template<class T >
void	set_generic ()
void	unset_generic ()
virtual void	print_serializable (const char *prefix="")
virtual bool	save_serializable (CSerializableFile *file, const char *prefix="")
virtual bool	load_serializable (CSerializableFile *file, const char *prefix="")
void	set_global_io (SGIO *io)
SGIO *	get_global_io ()
void	set_global_parallel (Parallel *parallel)
Parallel *	get_global_parallel ()
void	set_global_version (Version *version)
Version *	get_global_version ()
SGVector< char * >	get_modelsel_names ()
char *	get_modsel_param_descr (const char *param_name)
index_t	get_modsel_param_index (const char *param_name)

Protected Attributes
float64_t *	m_PRC_graph
float64_t *	m_thresholds
float64_t	m_auPRC
int32_t	m_PRC_length
bool	m_computed

Additional Inherited Members
Public Attributes inherited from CSGObject
SGIO *	io
Parallel *	parallel
Version *	version
Parameter *	m_parameters
Parameter *	m_model_selection_parameters
Protected Member Functions inherited from CSGObject
virtual void	load_serializable_pre () throw (ShogunException)
virtual void	load_serializable_post () throw (ShogunException)
virtual void	save_serializable_pre () throw (ShogunException)
virtual void	save_serializable_post () throw (ShogunException)

Constructor & Destructor Documentation

CPRCEvaluation

(

)

constructor

Definition at line 29 of file PRCEvaluation.h.

~CPRCEvaluation ( )

virtual

destructor

Definition at line 16 of file PRCEvaluation.cpp.

Member Function Documentation

float64_t evaluate ( CLabels *  predicted, CLabels *  ground_truth  )

virtual

evaluate PRC and auPRC

Parameters

predicted	labels
ground_truth	labels assumed to be correct

Returns

auPRC

Implements CBinaryClassEvaluation.

Definition at line 21 of file PRCEvaluation.cpp.

float64_t get_auPRC

(

)

get auPRC

Returns

area under PRC (auPRC)

Definition at line 110 of file PRCEvaluation.cpp.

EEvaluationDirection get_evaluation_direction ( )

virtual

Returns

whether criterium has to be maximized or minimized

Implements CEvaluation.

Definition at line 46 of file PRCEvaluation.h.

virtual const char* get_name ( ) const

virtual

get name

Implements CSGObject.

Definition at line 37 of file PRCEvaluation.h.

SGMatrix< float64_t > get_PRC

(

)

get PRC

Returns

PRC graph matrix

Definition at line 90 of file PRCEvaluation.cpp.

SGVector< float64_t > get_thresholds

(

)

get thresholds corresponding to points on the PRC graph

Returns

thresholds

Definition at line 100 of file PRCEvaluation.cpp.

Member Data Documentation

float64_t m_auPRC

protected

area under PRC graph

Definition at line 74 of file PRCEvaluation.h.

bool m_computed

protected

indicator of PRC and auPRC being computed already

Definition at line 80 of file PRCEvaluation.h.

float64_t* m_PRC_graph

protected

2-d array used to store PRC graph

Definition at line 68 of file PRCEvaluation.h.

int32_t m_PRC_length

protected

number of points in PRC graph

Definition at line 77 of file PRCEvaluation.h.

float64_t* m_thresholds

protected

vector with thresholds corresponding to points on the PRC graph

Definition at line 71 of file PRCEvaluation.h.

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

• PRCEvaluation.h
• PRCEvaluation.cpp