TanimotoDistance.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) 2008-2009 Christian Gehl
00008  * Copyright (C) 2008-2009 Fraunhofer Institute FIRST
00009  */
00010 
00011 #ifndef _TANIMOTODISTANCE_H___
00012 #define _TANIMOTODISTANCE_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 {
00035 class CTanimotoDistance: public CSimpleDistance<float64_t>
00036 {
00037     public:
00039         CTanimotoDistance();
00040 
00046         CTanimotoDistance(CSimpleFeatures<float64_t>* l, CSimpleFeatures<float64_t>* r);
00047         virtual ~CTanimotoDistance();
00048 
00055         virtual bool init(CFeatures* l, CFeatures* r);
00056 
00058         virtual void cleanup();
00059 
00064         virtual EDistanceType get_distance_type() { return D_TANIMOTO; }
00065 
00070         virtual const char* get_name() const { return "TanimotoDistance"; }
00071 
00072     protected:
00076         virtual float64_t compute(int32_t idx_a, int32_t idx_b);
00077 };
00078 } // namespace shogun
00079 #endif /* _TANIMOTODISTANCE_H___ */
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