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) 1999-2009 Soeren Sonnenburg 00008 * Copyright (C) 1999-2009 Fraunhofer Institute FIRST and Max-Planck-Society 00009 */ 00010 00011 #ifndef _LIBLINEAR_H___ 00012 #define _LIBLINEAR_H___ 00013 00014 #include "lib/config.h" 00015 00016 #ifdef HAVE_LAPACK 00017 #include "lib/common.h" 00018 #include "classifier/LinearClassifier.h" 00019 00020 enum LIBLINEAR_LOSS 00021 { 00022 LR = 0, 00023 L2 = 1 00024 }; 00025 00027 class CLibLinear : public CLinearClassifier 00028 { 00029 public: 00034 CLibLinear(LIBLINEAR_LOSS loss); 00035 00042 CLibLinear( 00043 float64_t C, CDotFeatures* traindat, 00044 CLabels* trainlab); 00045 00046 virtual ~CLibLinear(); 00047 00049 virtual bool train(); 00050 00055 virtual inline EClassifierType get_classifier_type() { return CT_LIBLINEAR; } 00056 00062 inline void set_C(float64_t c1, float64_t c2) { C1=c1; C2=c2; } 00063 00068 inline float64_t get_C1() { return C1; } 00069 00074 inline float64_t get_C2() { return C2; } 00075 00080 inline void set_epsilon(float64_t eps) { epsilon=eps; } 00081 00086 inline float64_t get_epsilon() { return epsilon; } 00087 00092 inline void set_bias_enabled(bool enable_bias) { use_bias=enable_bias; } 00093 00098 inline bool get_bias_enabled() { return use_bias; } 00099 00101 inline virtual const char* get_name() const { return "LibLinear"; } 00102 00103 protected: 00105 float64_t C1; 00107 float64_t C2; 00109 bool use_bias; 00111 float64_t epsilon; 00112 00114 LIBLINEAR_LOSS loss; 00115 }; 00116 #endif //HAVE_LAPACK 00117 #endif //_LIBLINEAR_H___