00001 /* 00002 * This program is free software; you can redistribute it and/or modify 00003 * it under the terms of the GNU General Public License as published by 00004 * the Free Software Foundation; either version 3 of the License, or 00005 * (at your option) any later version. 00006 * 00007 * Written (W) 2011 Sergey Lisitsyn 00008 * Copyright (C) 2011 Berlin Institute of Technology and Max-Planck-Society 00009 */ 00010 00011 #ifndef PRCEVALUATION_H_ 00012 #define PRCEVALUATION_H_ 00013 00014 #include <shogun/evaluation/BinaryClassEvaluation.h> 00015 00016 namespace shogun 00017 { 00018 00019 class CLabels; 00020 00027 class CPRCEvaluation: public CBinaryClassEvaluation 00028 { 00029 public: 00031 CPRCEvaluation() : 00032 CBinaryClassEvaluation(), m_PRC_graph(NULL), 00033 m_auPRC(0.0), m_PRC_length(0), m_computed(false) {}; 00034 00036 virtual ~CPRCEvaluation(); 00037 00039 virtual inline const char* get_name() const { return "PRCEvaluation"; }; 00040 00046 virtual float64_t evaluate(CLabels* predicted, CLabels* ground_truth); 00047 00048 inline EEvaluationDirection get_evaluation_direction() 00049 { 00050 return ED_MAXIMIZE; 00051 } 00052 00056 float64_t get_auPRC(); 00057 00061 SGMatrix<float64_t> get_PRC(); 00062 00063 protected: 00064 00066 float64_t* m_PRC_graph; 00067 00069 float64_t m_auPRC; 00070 00072 int32_t m_PRC_length; 00073 00075 bool m_computed; 00076 }; 00077 00078 } 00079 00080 #endif /* PRCEVALUATION_H_ */