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 00025 class CPRCEvaluation: public CBinaryClassEvaluation 00026 { 00027 public: 00029 CPRCEvaluation() : 00030 CBinaryClassEvaluation(), m_PRC_graph(NULL), 00031 m_auPRC(0.0), m_PRC_length(0), m_computed(false) {}; 00032 00034 virtual ~CPRCEvaluation(); 00035 00037 virtual inline const char* get_name() const { return "PRCEvaluation"; }; 00038 00044 virtual float64_t evaluate(CLabels* predicted, CLabels* ground_truth); 00045 00046 inline EEvaluationDirection get_evaluation_direction() 00047 { 00048 return ED_MAXIMIZE; 00049 } 00050 00054 float64_t get_auPRC(); 00055 00059 SGMatrix<float64_t> get_PRC(); 00060 00064 SGVector<float64_t> get_thresholds(); 00065 protected: 00066 00068 float64_t* m_PRC_graph; 00069 00071 float64_t* m_thresholds; 00072 00074 float64_t m_auPRC; 00075 00077 int32_t m_PRC_length; 00078 00080 bool m_computed; 00081 }; 00082 00083 } 00084 00085 #endif /* PRCEVALUATION_H_ */
