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/DenseDistance.h> 00016 00017 namespace shogun 00018 { 00039 class CMinkowskiMetric: public CDenseDistance<float64_t> 00040 { 00041 public: 00043 CMinkowskiMetric(); 00044 00049 CMinkowskiMetric(float64_t k); 00050 00057 CMinkowskiMetric(CDenseFeatures<float64_t>* l, CDenseFeatures<float64_t>* r, float64_t k); 00058 virtual ~CMinkowskiMetric(); 00059 00065 virtual bool init(CFeatures* l, CFeatures* r); 00066 00068 virtual void cleanup(); 00069 00074 virtual EDistanceType get_distance_type() { return D_MINKOWSKI;} 00075 00080 virtual const char* get_name() const { return "MinkowskiMetric"; } 00081 00082 protected: 00086 virtual float64_t compute(int32_t idx_a, int32_t idx_b); 00087 00088 private: 00089 void init(); 00090 00091 protected: 00093 float64_t k; 00094 }; 00095 00096 } // namespace shogun 00097 #endif /* _MINKOWSKIMETRIC_H___ */
