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) 2006-2009 Christian Gehl 00008 * Copyright (C) 2006-2009 Fraunhofer Institute FIRST and Max-Planck-Society 00009 */ 00010 00011 #ifndef _MINKOWSKIMETRIC_H___ 00012 #define _MINKOWSKIMETRIC_H___ 00013 00014 #include <shogun/lib/common.h> 00015 #include <shogun/distance/SimpleDistance.h> 00016 #include <shogun/features/SimpleFeatures.h> 00017 00018 namespace shogun 00019 { 00040 class CMinkowskiMetric: public CSimpleDistance<float64_t> 00041 { 00042 public: 00044 CMinkowskiMetric(); 00045 00050 CMinkowskiMetric(float64_t k); 00051 00058 CMinkowskiMetric(CSimpleFeatures<float64_t>* l, CSimpleFeatures<float64_t>* r, float64_t k); 00059 virtual ~CMinkowskiMetric(); 00060 00066 virtual bool init(CFeatures* l, CFeatures* r); 00067 00069 virtual void cleanup(); 00070 00075 virtual EDistanceType get_distance_type() { return D_MINKOWSKI;} 00076 00081 virtual const char* get_name() const { return "MinkowskiMetric"; } 00082 00083 protected: 00087 virtual float64_t compute(int32_t idx_a, int32_t idx_b); 00088 00089 private: 00090 void init(); 00091 00092 protected: 00094 float64_t k; 00095 }; 00096 00097 } // namespace shogun 00098 #endif /* _MINKOWSKIMETRIC_H___ */