CPRCEvaluation Class Reference

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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:

List of all members.

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

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Constructor & Destructor Documentation

CPRCEvaluation

(

)

constructor

Definition at line 29 of file PRCEvaluation.h.

~CPRCEvaluation

(

)

[virtual]

destructor

Definition at line 16 of file PRCEvaluation.cpp.

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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.

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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