Normalize the kernel by a constant obtained from the first element of the kernel matrix, i.e. .
useful if the kernel returns constant elements along the diagonal anyway and all one wants is to scale the kernel down to 1 on the diagonal.
Definition at line 26 of file FirstElementKernelNormalizer.h.
Public Member Functions | |
CFirstElementKernelNormalizer () | |
virtual | ~CFirstElementKernelNormalizer () |
virtual bool | init (CKernel *k) |
virtual float64_t | normalize (float64_t value, int32_t idx_lhs, int32_t idx_rhs) |
virtual float64_t | normalize_lhs (float64_t value, int32_t idx_lhs) |
virtual float64_t | normalize_rhs (float64_t value, int32_t idx_rhs) |
virtual const char * | get_name () const |
Protected Attributes | |
float64_t | scale |
scale constant obtained from k(0,0) |
CFirstElementKernelNormalizer::CFirstElementKernelNormalizer | ( | ) |
constructor
Definition at line 31 of file FirstElementKernelNormalizer.h.
virtual CFirstElementKernelNormalizer::~CFirstElementKernelNormalizer | ( | ) | [virtual] |
default destructor
Definition at line 36 of file FirstElementKernelNormalizer.h.
virtual const char* CFirstElementKernelNormalizer::get_name | ( | ) | const [virtual] |
Implements CSGObject.
Definition at line 87 of file FirstElementKernelNormalizer.h.
virtual bool CFirstElementKernelNormalizer::init | ( | CKernel * | k | ) | [virtual] |
initialization of the normalizer (if needed)
k | kernel |
Implements CKernelNormalizer.
Definition at line 42 of file FirstElementKernelNormalizer.h.
virtual float64_t CFirstElementKernelNormalizer::normalize | ( | float64_t | value, | |
int32_t | idx_lhs, | |||
int32_t | idx_rhs | |||
) | [virtual] |
normalize the kernel value
value | kernel value | |
idx_lhs | index of left hand side vector | |
idx_rhs | index of right hand side vector |
Implements CKernelNormalizer.
Definition at line 62 of file FirstElementKernelNormalizer.h.
virtual float64_t CFirstElementKernelNormalizer::normalize_lhs | ( | float64_t | value, | |
int32_t | idx_lhs | |||
) | [virtual] |
normalize only the left hand side vector
value | value of a component of the left hand side feature vector | |
idx_lhs | index of left hand side vector |
Implements CKernelNormalizer.
Definition at line 72 of file FirstElementKernelNormalizer.h.
virtual float64_t CFirstElementKernelNormalizer::normalize_rhs | ( | float64_t | value, | |
int32_t | idx_rhs | |||
) | [virtual] |
normalize only the right hand side vector
value | value of a component of the right hand side feature vector | |
idx_rhs | index of right hand side vector |
Implements CKernelNormalizer.
Definition at line 81 of file FirstElementKernelNormalizer.h.
float64_t CFirstElementKernelNormalizer::scale [protected] |
scale constant obtained from k(0,0)
Definition at line 91 of file FirstElementKernelNormalizer.h.