MinkowskiMetric.h

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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___ */
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