KernelMatrix Class Reference

The management class of kernel values. More...

#include <kernelmatrix.h>

Public Member Functions
	KernelMatrix (const DataSet::node2d &instances, SvmParam param)
void	get_rows (const SyncArray< int > &idx, SyncArray< float_type > &kernel_rows) const
void	get_rows (const DataSet::node2d &instances, SyncArray< float_type > &kernel_rows) const
const SyncArray< float_type > &	diag () const
	return the diagonal elements of kernel matrix
size_t	n_instances () const
	the number of instances in KernelMatrix
size_t	n_features () const
	the maximum number of features of instances
size_t	nnz () const
	the number of non-zero features of all instances

Detailed Description

The management class of kernel values.

Constructor & Destructor Documentation

KernelMatrix()

KernelMatrix::KernelMatrix ( const DataSet::node2d &  instances, SvmParam  param  )

explicit

Create KernelMatrix with given instances (training data or support vectors).

Parameters

instances	the instances, either are training instances for training, or are support vectors for prediction.
param	kernel_type in parm is used

Member Function Documentation

get_rows() [1/2]

void KernelMatrix::get_rows	(	const SyncArray< int > &	idx,
		SyncArray< float_type > &	kernel_rows
	)		const

return specific rows in kernel matrix

Parameters

[in]	idx	the indices of the rows
[out]	kernel_rows

get_rows() [2/2]

void KernelMatrix::get_rows	(	const DataSet::node2d &	instances,
		SyncArray< float_type > &	kernel_rows
	)		const

return kernel values of each given instance and each instance stored in KernelMatrix

Parameters

[in]	instances	the given instances
[out]	kernel_rows

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

• include/thundersvm/kernelmatrix.h
• src/thundersvm/kernelmatrix.cpp