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LocalityImprovedStringKernel.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) 1999-2008 Gunnar Raetsch
8  * Written (W) 1999-2008 Soeren Sonnenburg
9  * Copyright (C) 1999-2009 Fraunhofer Institute FIRST and Max-Planck-Society
10  */
11 
12 #ifndef _LOCALITYIMPROVEDSTRINGKERNEL_H___
13 #define _LOCALITYIMPROVEDSTRINGKERNEL_H___
14 
15 #include <shogun/lib/common.h>
17 
18 namespace shogun
19 {
31 {
32  public:
35 
43  CLocalityImprovedStringKernel(int32_t size, int32_t length,
44  int32_t inner_degree, int32_t outer_degree);
45 
56  int32_t length, int32_t inner_degree, int32_t outer_degree);
57 
59 
66  virtual bool init(CFeatures* l, CFeatures* r);
67 
73 
78  virtual const char* get_name() const { return "LocalityImprovedStringKernel"; }
79 
80  protected:
89  float64_t compute(int32_t idx_a, int32_t idx_b);
90 
91  private:
92  void init();
93 
94  protected:
96  int32_t length;
98  int32_t inner_degree;
100  int32_t outer_degree;
101 };
102 }
103 #endif /* _LOCALITYIMPROVEDSTRINGKERNEL_H__ */
EKernelType
Definition: Kernel.h:51
virtual bool init(CFeatures *l, CFeatures *r)
double float64_t
Definition: common.h:48
float64_t compute(int32_t idx_a, int32_t idx_b)
all of classes and functions are contained in the shogun namespace
Definition: class_list.h:16
The class Features is the base class of all feature objects.
Definition: Features.h:62
Template class StringKernel, is the base class of all String Kernels.
Definition: StringKernel.h:24
The LocalityImprovedString kernel is inspired by the polynomial kernel. Comparing neighboring charact...

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