Public Member Functions | Protected Attributes

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:
Inheritance graph

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_tget_PRC ()
SGVector< float64_tget_thresholds ()

Protected Attributes

float64_t m_auPRC
int32_t m_PRC_length
bool m_computed

Constructor & Destructor Documentation

CPRCEvaluation (  ) 


Definition at line 29 of file PRCEvaluation.h.

~CPRCEvaluation (  )  [virtual]


Definition at line 16 of file PRCEvaluation.cpp.

Member Function Documentation

float64_t evaluate ( CLabels predicted,
CLabels ground_truth 
) [virtual]

evaluate PRC and auPRC

predicted labels
ground_truth labels assumed to be correct

Implements CBinaryClassEvaluation.

Definition at line 21 of file PRCEvaluation.cpp.

float64_t get_auPRC (  ) 

get auPRC

area under PRC (auPRC)

Definition at line 110 of file PRCEvaluation.cpp.

EEvaluationDirection get_evaluation_direction (  )  [virtual]
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

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


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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SHOGUN Machine Learning Toolbox - Documentation