SHOGUN
v1.1.0
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DiceKernelNormalizer performs kernel normalization inspired by the Dice coefficient (see http://en.wikipedia.org/wiki/Dice's_coefficient)
Definition at line 26 of file DiceKernelNormalizer.h.
Public Member Functions | |
CDiceKernelNormalizer (bool use_opt_diag=false) | |
virtual | ~CDiceKernelNormalizer () |
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 |
bool | alloc_and_compute_diag (CKernel *k, float64_t *&v, int32_t num) |
Protected Attributes | |
float64_t * | diag_lhs |
int32_t | num_diag_lhs |
float64_t * | diag_rhs |
int32_t | num_diag_rhs |
bool | use_optimized_diagonal_computation |
CDiceKernelNormalizer | ( | bool | use_opt_diag = false | ) |
default constructor
use_opt_diag | - some kernels support faster diagonal compuation via compute_diag(idx), this flag enables this |
Definition at line 33 of file DiceKernelNormalizer.h.
virtual ~CDiceKernelNormalizer | ( | ) | [virtual] |
default destructor
Definition at line 47 of file DiceKernelNormalizer.h.
bool alloc_and_compute_diag | ( | CKernel * | k, |
float64_t *& | v, | ||
int32_t | num | ||
) |
alloc and compute the vector containing the square root of the diagonal elements of this kernel.
Definition at line 125 of file DiceKernelNormalizer.h.
virtual const char* get_name | ( | ) | const [virtual] |
Returns the name of the SGSerializable instance. It MUST BE the CLASS NAME without the prefixed `C'.
Implements CSGObject.
Definition at line 117 of file DiceKernelNormalizer.h.
initialization of the normalizer
k | kernel |
Implements CKernelNormalizer.
Definition at line 55 of file DiceKernelNormalizer.h.
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 85 of file DiceKernelNormalizer.h.
virtual float64_t 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 96 of file DiceKernelNormalizer.h.
virtual float64_t 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 106 of file DiceKernelNormalizer.h.
diagonal left-hand side
Definition at line 151 of file DiceKernelNormalizer.h.
diagonal right-hand side
Definition at line 156 of file DiceKernelNormalizer.h.
int32_t num_diag_lhs [protected] |
num diag lhs
Definition at line 153 of file DiceKernelNormalizer.h.
int32_t num_diag_rhs [protected] |
num diag rhs
Definition at line 158 of file DiceKernelNormalizer.h.
bool use_optimized_diagonal_computation [protected] |
flat if optimized diagonal computation is used
Definition at line 161 of file DiceKernelNormalizer.h.