The LocalAlignmentString kernel compares two sequences through all possible local alignments between the two sequences.
The implementation is taken from http://www.mloss.org/software/view/40/ and only adjusted to work with shogun.
在文件LocalAlignmentStringKernel.h第27行定义。

公有成员 | |
| CLocalAlignmentStringKernel (int32_t size) | |
| CLocalAlignmentStringKernel (CStringFeatures< char > *l, CStringFeatures< char > *r) | |
| virtual | ~CLocalAlignmentStringKernel () |
| virtual bool | init (CFeatures *l, CFeatures *r) |
| virtual void | cleanup () |
| virtual EKernelType | get_kernel_type () |
| virtual const char * | get_name () const |
保护成员 | |
| virtual float64_t | compute (int32_t idx_a, int32_t idx_b) |
保护属性 | |
| bool | initialized |
| int32_t * | isAA |
| int32_t * | aaIndex |
| int32_t | opening |
| int32_t | extension |
| int32_t * | scaled_blosum |
静态保护属性 | |
| static int32_t | logsum_lookup [LOGSUM_TBL] |
| static const int32_t | blosum [] |
| static const char * | aaList = "ARNDCQEGHILKMFPSTWYV" |
| CLocalAlignmentStringKernel | ( | int32_t | size | ) |
| CLocalAlignmentStringKernel | ( | CStringFeatures< char > * | l, | |
| CStringFeatures< char > * | r | |||
| ) |
constructor
| l | features of left-hand side | |
| r | features of right-hand side |
| ~CLocalAlignmentStringKernel | ( | ) | [virtual] |
| void cleanup | ( | ) | [virtual] |
| float64_t compute | ( | int32_t | idx_a, | |
| int32_t | idx_b | |||
| ) | [protected, virtual] |
compute kernel function for features a and b idx_{a,b} denote the index of the feature vectors in the corresponding feature object
| idx_a | index a | |
| idx_b | index b |
实现了CKernel。
| virtual EKernelType get_kernel_type | ( | ) | [virtual] |
return what type of kernel we are
实现了CKernel。
在文件LocalAlignmentStringKernel.h第60行定义。
| virtual const char* get_name | ( | ) | const [virtual] |
return the kernel's name
实现了CSGObject。
在文件LocalAlignmentStringKernel.h第69行定义。
initialize kernel
| l | features of left-hand side | |
| r | features of right-hand side |
int32_t* aaIndex [protected] |
correspondance between amino-acid letter and index
在文件LocalAlignmentStringKernel.h第123行定义。
const char * aaList = "ARNDCQEGHILKMFPSTWYV" [static, protected] |
List of amino acids
在文件LocalAlignmentStringKernel.h第137行定义。
const int32_t blosum [static, protected] |
{
6,
-2, 8,
-2, -1, 9,
-3, -2, 2, 9,
-1, -5, -4, -5, 13,
-1, 1, 0, 0, -4, 8,
-1, 0, 0, 2, -5, 3, 7,
0, -3, -1, -2, -4, -3, -3, 8,
-2, 0, 1, -2, -4, 1, 0, -3, 11,
-2, -5, -5, -5, -2, -4, -5, -6, -5, 6,
-2, -3, -5, -5, -2, -3, -4, -5, -4, 2, 6,
-1, 3, 0, -1, -5, 2, 1, -2, -1, -4, -4, 7,
-1, -2, -3, -5, -2, -1, -3, -4, -2, 2, 3, -2, 8,
-3, -4, -5, -5, -4, -5, -5, -5, -2, 0, 1, -5, 0, 9,
-1, -3, -3, -2, -4, -2, -2, -3, -3, -4, -4, -2, -4, -5, 11,
2, -1, 1, 0, -1, 0, 0, 0, -1, -4, -4, 0, -2, -4, -1, 6,
0, -2, 0, -2, -1, -1, -1, -2, -3, -1, -2, -1, -1, -3, -2, 2, 7,
-4, -4, -6, -6, -3, -3, -4, -4, -4, -4, -2, -4, -2, 1, -6, -4, -4, 16,
-3, -3, -3, -5, -4, -2, -3, -5, 3, -2, -2, -3, -1, 4, -4, -3, -2, 3, 10,
0, -4, -4, -5, -1, -3, -4, -5, -5, 4, 1, -3, 1, -1, -4, -2, 0, -4, -2, 6}
static blosum
在文件LocalAlignmentStringKernel.h第133行定义。
int32_t extension [protected] |
gap penalty extension
在文件LocalAlignmentStringKernel.h第128行定义。
bool initialized [protected] |
if kernel is initialized
在文件LocalAlignmentStringKernel.h第118行定义。
int32_t* isAA [protected] |
indicates whether a char is an amino-acid
在文件LocalAlignmentStringKernel.h第121行定义。
int32_t logsum_lookup [static, protected] |
static logsum lookup
在文件LocalAlignmentStringKernel.h第131行定义。
int32_t opening [protected] |
gap penalty opening
在文件LocalAlignmentStringKernel.h第126行定义。
int32_t* scaled_blosum [protected] |
scaled blosum
在文件LocalAlignmentStringKernel.h第135行定义。