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MatchWordStringKernel.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) 1999-2009 Soeren Sonnenburg
8  * Copyright (C) 1999-2009 Fraunhofer Institute FIRST and Max-Planck-Society
9  */
10 
11 #ifndef _MATCHWORDSTRINGKERNEL_H___
12 #define _MATCHWORDSTRINGKERNEL_H___
13 
14 #include <shogun/lib/common.h>
17 
18 namespace shogun
19 {
37 class CMatchWordStringKernel: public CStringKernel<uint16_t>
38 {
39  public:
42 
48  CMatchWordStringKernel(int32_t size, int32_t d);
49 
57 
58  virtual ~CMatchWordStringKernel();
59 
66  virtual bool init(CFeatures* l, CFeatures* r);
67 
72  virtual EKernelType get_kernel_type() { return K_MATCHWORD; }
73 
78  virtual const char* get_name() const { return "MatchWordStringKernel"; }
79 
80  protected:
89  virtual float64_t compute(int32_t idx_a, int32_t idx_b);
90 
91  private:
92  void init();
93 
94  protected:
96  int32_t degree;
97 };
98 }
99 #endif /* _MATCHWORDSTRINGKERNEL_H__ */

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