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/DenseDistance.h>
00016 
00017 namespace shogun
00018 {
00034 class CTanimotoDistance: public CDenseDistance<float64_t>
00035 {
00036     public:
00038         CTanimotoDistance();
00039 
00045         CTanimotoDistance(CDenseFeatures<float64_t>* l, CDenseFeatures<float64_t>* r);
00046         virtual ~CTanimotoDistance();
00047 
00054         virtual bool init(CFeatures* l, CFeatures* r);
00055 
00057         virtual void cleanup();
00058 
00063         virtual EDistanceType get_distance_type() { return D_TANIMOTO; }
00064 
00069         virtual const char* get_name() const { return "TanimotoDistance"; }
00070 
00071     protected:
00075         virtual float64_t compute(int32_t idx_a, int32_t idx_b);
00076 };
00077 } // namespace shogun
00078 #endif /* _TANIMOTODISTANCE_H___ */
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