SqrtDiagKernelNormalizer divides by the Square Root of the product of the diagonal elements.
This effectively normalizes the vectors in feature space to norm 1 (see CSqrtDiagKernelNormalizer)
在文件SqrtDiagKernelNormalizer.h第29行定义。
公有成员 | |
CSqrtDiagKernelNormalizer (bool use_opt_diag=false) | |
virtual | ~CSqrtDiagKernelNormalizer () |
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) |
bool | alloc_and_compute_diag (CKernel *k, float64_t *&v, int32_t num) |
virtual const char * | get_name () const |
保护属性 | |
float64_t * | sqrtdiag_lhs |
float64_t * | sqrtdiag_rhs |
bool | use_optimized_diagonal_computation |
CSqrtDiagKernelNormalizer | ( | bool | use_opt_diag = false |
) |
default constructor
use_opt_diag | - some kernels support faster diagonal compuation via compute_diag(idx), this flag enables this |
在文件SqrtDiagKernelNormalizer.h第36行定义。
virtual ~CSqrtDiagKernelNormalizer | ( | ) | [virtual] |
default destructor
在文件SqrtDiagKernelNormalizer.h第42行定义。
alloc and compute the vector containing the square root of the diagonal elements of this kernel.
在文件SqrtDiagKernelNormalizer.h第110行定义。
virtual const char* get_name | ( | ) | const [virtual] |
virtual bool init | ( | CKernel * | k | ) | [virtual] |
normalize the kernel value
value | kernel value | |
idx_lhs | index of left hand side vector | |
idx_rhs | index of right hand side vector |
在文件SqrtDiagKernelNormalizer.h第80行定义。
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 |
在文件SqrtDiagKernelNormalizer.h第91行定义。
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 |
在文件SqrtDiagKernelNormalizer.h第100行定义。
float64_t* sqrtdiag_lhs [protected] |
sqrt diagonal left-hand side
在文件SqrtDiagKernelNormalizer.h第139行定义。
float64_t* sqrtdiag_rhs [protected] |
sqrt diagonal right-hand side
在文件SqrtDiagKernelNormalizer.h第141行定义。
bool use_optimized_diagonal_computation [protected] |
f optimized diagonal computation is used
在文件SqrtDiagKernelNormalizer.h第143行定义。