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GaussianARDKernel.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) 2012 Jacob Walker
8  *
9  * Adapted from WeightedDegreeRBFKernel.h
10  */
11 
12 #ifndef GAUSSIANARDKERNEL_H_
13 #define GAUSSIANARDKERNEL_H_
14 
15 #include <shogun/lib/common.h>
19 
20 namespace shogun
21 {
22 
25 {
26 public:
29 
35  CGaussianARDKernel(int32_t size, float64_t width);
36 
45  int32_t size=10, float64_t width=2.0);
46 
48  virtual ~CGaussianARDKernel();
49 
55 
62  virtual bool init(CFeatures* l, CFeatures* r);
63 
69 
74  virtual const char* get_name() const { return "GaussianARDKernel"; }
75 
84  index_t index=-1);
85 
86 protected:
95  virtual float64_t compute(int32_t idx_a, int32_t idx_b);
96 
97 private:
98  void init();
99 
100 protected:
103 };
104 }
105 #endif /* GAUSSIANARDKERNEL_H_ */
virtual SGMatrix< float64_t > get_parameter_gradient(const TParameter *param, index_t index=-1)
virtual EKernelType get_kernel_type()
EKernelType
Definition: Kernel.h:51
int32_t index_t
Definition: common.h:60
Linear Kernel with Automatic Relevance Detection.
static CGaussianARDKernel * obtain_from_generic(CKernel *kernel)
parameter struct
Definition: Parameter.h:26
float64_t kernel(int32_t idx_a, int32_t idx_b)
Definition: Kernel.h:198
virtual float64_t compute(int32_t idx_a, int32_t idx_b)
Gaussian Kernel with Automatic Relevance Detection.
double float64_t
Definition: common.h:48
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
virtual const char * get_name() const
The Kernel base class.
Definition: Kernel.h:150
virtual bool init(CFeatures *l, CFeatures *r)

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