CSparseSpatialSampleStringKernel Class Reference

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Detailed Description

Sparse Spatial Sample String Kernel by Pavel Kuksa <pkuksa@cs.rutgers.edu> and Vladimir Pavlovic <vladimir@cs.rutgers.edu>

Definition at line 30 of file SparseSpatialSampleStringKernel.h.

Inheritance diagram for CSparseSpatialSampleStringKernel:

List of all members.

Public Member Functions
	CSparseSpatialSampleStringKernel ()
	CSparseSpatialSampleStringKernel (CStringFeatures< char > *l, CStringFeatures< char > *r)
virtual	~CSparseSpatialSampleStringKernel ()
virtual bool	init (CFeatures *l, CFeatures *r)
virtual void	cleanup ()
virtual EKernelType	get_kernel_type ()
void	set_d (int32_t max_distance)
int32_t	get_d ()
void	set_t (int32_t sequence_length)
int32_t	get_t ()
virtual const char *	get_name () const
Protected Member Functions
virtual float64_t	compute (int32_t idx_a, int32_t idx_b)
SSKFeatures *	extractTriple (int **S, int *len, int nStr, int d1, int d2)
SSKFeatures *	extractDouble (int **S, int *len, int nStr, int d1)
void	compute_double (int32_t idx_a, int32_t idx_b)
void	compute_triple (int32_t idx_a, int32_t idx_b)
int *	cntsrtna (int *sx, int k, int r, int na)
void	countAndUpdate (int *outK, int *sx, int *g, int k, int r, int nStr)
Protected Attributes
int32_t	t
int32_t	d
bool	isVerbose

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Constructor & Destructor Documentation

CSparseSpatialSampleStringKernel

(

)

constructor

Definition at line 23 of file SparseSpatialSampleStringKernel.cpp.

CSparseSpatialSampleStringKernel	(	CStringFeatures< char > *	l,
		CStringFeatures< char > *	r
	)

constructor

Parameters:

	l	features of left-hand side
	r	features of right-hand side

Definition at line 28 of file SparseSpatialSampleStringKernel.cpp.

~CSparseSpatialSampleStringKernel

(

)

[virtual]

Definition at line 45 of file SparseSpatialSampleStringKernel.cpp.

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Member Function Documentation

void cleanup

(

)

[virtual]

clean up kernel

Reimplemented from CKernel.

Definition at line 40 of file SparseSpatialSampleStringKernel.cpp.

int * cntsrtna	(	int *	sx,
		int	k,
		int	r,
		int	na
	)			[protected]

Definition at line 337 of file SparseSpatialSampleStringKernel.cpp.

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

Parameters:

	idx_a	index a
	idx_b	index b

Returns:

computed kernel function at indices a,b

Implements CKernel.

Definition at line 372 of file SparseSpatialSampleStringKernel.cpp.

void compute_double	(	int32_t	idx_a,
		int32_t	idx_b
	)			[protected]

Definition at line 125 of file SparseSpatialSampleStringKernel.cpp.

void compute_triple	(	int32_t	idx_a,
		int32_t	idx_b
	)			[protected]

Definition at line 191 of file SparseSpatialSampleStringKernel.cpp.

void countAndUpdate	(	int *	outK,
		int *	sx,
		int *	g,
		int	k,
		int	r,
		int	nStr
	)			[protected]

Definition at line 268 of file SparseSpatialSampleStringKernel.cpp.

SSKFeatures * extractDouble	(	int **	S,
		int *	len,
		int	nStr,
		int	d1
	)			[protected]

Definition at line 87 of file SparseSpatialSampleStringKernel.cpp.

SSKFeatures * extractTriple	(	int **	S,
		int *	len,
		int	nStr,
		int	d1,
		int	d2
	)			[protected]

Definition at line 49 of file SparseSpatialSampleStringKernel.cpp.

int32_t get_d

(

)

Definition at line 72 of file SparseSpatialSampleStringKernel.h.

virtual EKernelType get_kernel_type

(

)

[virtual]

return what type of kernel we are

Returns:

kernel type SPARSESPATIALSAMPLE

Implements CStringKernel< char >.

Definition at line 61 of file SparseSpatialSampleStringKernel.h.

virtual const char* get_name

(

void

)

const [virtual]

return the kernel's name

Returns:

name SparseSpatialSample

Reimplemented from CStringKernel< char >.

Definition at line 92 of file SparseSpatialSampleStringKernel.h.

int32_t get_t

(

)

Definition at line 83 of file SparseSpatialSampleStringKernel.h.

bool init	(	CFeatures *	l,
		CFeatures *	r
	)			[virtual]

initialize kernel

Parameters:

	l	features of left-hand side
	r	features of right-hand side

Returns:

if initializing was successful

Reimplemented from CStringKernel< char >.

Definition at line 34 of file SparseSpatialSampleStringKernel.cpp.

void set_d

(

int32_t

max_distance

)

Definition at line 66 of file SparseSpatialSampleStringKernel.h.

void set_t

(

int32_t

sequence_length

)

Definition at line 77 of file SparseSpatialSampleStringKernel.h.

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Member Data Documentation

int32_t d [protected]

parameter d of the SSSK denotes maximum allowed distance between words in the sequence

Definition at line 119 of file SparseSpatialSampleStringKernel.h.

bool isVerbose [protected]

Definition at line 120 of file SparseSpatialSampleStringKernel.h.

int32_t t [protected]

parameter t of the SSSK denotes how many words are considered in the sequence (valid are only 2 or 3)

Definition at line 115 of file SparseSpatialSampleStringKernel.h.

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The documentation for this class was generated from the following files:

• SparseSpatialSampleStringKernel.h
• SparseSpatialSampleStringKernel.cpp