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CosineDistance.h
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1 /*
2  * This program is free software; you can redistribute it and/or modify
3  * it under the terms of the GNU General Public License as published by
4  * the Free Software Foundation; either version 3 of the License, or
5  * (at your option) any later version.
6  *
7  * Written (W) 2008-2009 Christian Gehl
8  * Copyright (C) 2008-2009 Fraunhofer Institute FIRST
9  */
10 
11 #ifndef _COSINEDISTANCE_H___
12 #define _COSINEDISTANCE_H___
13 
14 #include <shogun/lib/common.h>
16 
17 namespace shogun
18 {
35 class CCosineDistance: public CDenseDistance<float64_t>
36 {
37  public:
40 
47  virtual ~CCosineDistance();
48 
55  virtual bool init(CFeatures* l, CFeatures* r);
56 
58  virtual void cleanup();
59 
65 
70  virtual const char* get_name() const { return "CosineDistance"; }
71 
72  protected:
76  virtual float64_t compute(int32_t idx_a, int32_t idx_b);
77 };
78 
79 } // namespace shogun
80 #endif /* _COSINEDISTANCE_H___ */

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