/usr/include/shogun/kernel/WeightedDegreeRBFKernel.h is in libshogun-dev 1.1.0-4ubuntu2.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 | #ifndef _WEIGHTEDDEGREERBFKERNEL_H___
#define _WEIGHTEDDEGREERBFKERNEL_H___
#include <shogun/lib/common.h>
#include <shogun/kernel/DotKernel.h>
#include <shogun/features/SimpleFeatures.h>
namespace shogun
{
/** @brief weighted degree RBF kernel */
class CWeightedDegreeRBFKernel: public CDotKernel
{
public:
/** default constructor
*
*/
CWeightedDegreeRBFKernel();
/** constructor
*
* @param size cache size
* @param width width
* @param degree degree
* @param nof_properties number of properties per amino acid
*/
CWeightedDegreeRBFKernel(int32_t size, float64_t width, int32_t degree, int32_t nof_properties);
/** constructor
*
* @param l features of left-hand side
* @param r features of right-hand side
* @param width width
* @param degree degree
* @param nof_properties number of properties per amino acid
* @param size cache size
*/
CWeightedDegreeRBFKernel(CSimpleFeatures<float64_t>* l, CSimpleFeatures<float64_t>* r,
float64_t width, int32_t degree, int32_t nof_properties, int32_t size=10);
virtual ~CWeightedDegreeRBFKernel();
/** initialize kernel
*
* @param l features of left-hand side
* @param r features of right-hand side
* @return if initializing was successful
*/
virtual bool init(CFeatures* l, CFeatures* r);
/** return what type of kernel we are
*
* @return kernel type UNKNOWN
*/
//virtual EKernelType get_kernel_type() { return K_UNKNOWN; }
virtual EKernelType get_kernel_type() { return K_WEIGHTEDDEGREERBF; }
/** return the kernel's name
*
* @return name Gaussian
*/
inline virtual const char* get_name() const { return "WeightedDegreeRBFKernel"; }
/** return feature class the kernel can deal with
*
* @return feature class SIMPLE
*/
inline virtual EFeatureClass get_feature_class() { return C_SIMPLE; }
/** return feature type the kernel can deal with
*
* @return float64_t feature type
*/
virtual EFeatureType get_feature_type() { return F_DREAL; }
/** set degree
*
* @param deg new degree
* @return if setting was successful
*/
inline bool set_degree(int32_t deg) { degree=deg; return true; }
/** get degree
*
* @return degree
*/
inline int32_t get_degree() { return degree; }
protected:
/** compute kernel function for features a and b
* idx_{a,b} denote the index of the feature vectors
* in the corresponding feature object
*
* @param idx_a index a
* @param idx_b index b
* @return computed kernel function at indices a,b
*/
virtual float64_t compute(int32_t idx_a, int32_t idx_b);
/** init degree weights
*
* @return if initialization was successful
*/
bool init_wd_weights();
protected:
/** width */
float64_t width;
/** degree */
int32_t degree;
/** number of properties per amino acid */
int32_t nof_properties;
/** weights
*/
float64_t* weights;
};
}
#endif /* _WEIGHTEDDEGREERBFKERNEL_H__ */
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