Class that implements the virtual class base::OperationMatrix for the application of classification for the Systemmatrix. More...

#include <SystemMatrixLeastSquaresIdentity.hpp>

Inheritance diagram for sgpp::datadriven::SystemMatrixLeastSquaresIdentity:

Public Member Functions
virtual void	generateb (base::DataVector &classes, base::DataVector &b)
	Generates the right hand side of the classification equation. More...

virtual void	mult (base::DataVector &alpha, base::DataVector &result)
	starts the Multiplication with the matrix More...

virtual void	prepareGrid ()
	forward declaration More...

void	setImplementation (datadriven::OperationMultipleEvalConfiguration operationConfiguration)

	SystemMatrixLeastSquaresIdentity (base::Grid &SparseGrid, base::DataMatrix &trainData, double lambda)
	Std-Constructor. More...

virtual	~SystemMatrixLeastSquaresIdentity ()
	Std-Destructor. More...

Public Member Functions inherited from sgpp::datadriven::DMSystemMatrixBase
	DMSystemMatrixBase (base::DataMatrix &trainData, double lambda)
	Std-Constructor. More...

virtual void	getTimers (double &timeMult, double &computeMult, double &timeMultTrans, double &computeMultTrans)
	gets the timer's values by saving them into call by reference values More...

virtual void	resetTimers ()
	resets all timers to 0 More...

virtual	~DMSystemMatrixBase ()
	Std-Destructor. More...

Public Member Functions inherited from sgpp::base::OperationMatrix
	OperationMatrix ()
	Constructor. More...

virtual	~OperationMatrix ()
	Destructor. More...

Additional Inherited Members
Protected Attributes inherited from sgpp::datadriven::DMSystemMatrixBase
double	completeTimeMult_
	time needed for Mult More...

double	completeTimeMultTrans_
	time needed for Mult transposed More...

double	computeTimeMult_
	time needed only for the computation of mult, interesting on accelerator boards More...

double	computeTimeMultTrans_
	time needed only for the computation of mult transposed, interesting on accelerator boards More...

base::DataMatrix	dataset_
	the dataset More...

double	lambda_
	the lambda, the regularisation parameter More...

base::SGppStopwatch *	myTimer_
	Stopwatch needed to determine the durations of mult and mult transposed. More...

Detailed Description

Class that implements the virtual class base::OperationMatrix for the application of classification for the Systemmatrix.

The Identity matrix is used as regularization operator.

For the Operation B's mult and mutlTransposed functions vectorized formulations are used.

Constructor & Destructor Documentation

◆ SystemMatrixLeastSquaresIdentity()

sgpp::datadriven::SystemMatrixLeastSquaresIdentity::SystemMatrixLeastSquaresIdentity	(	base::Grid &	SparseGrid,
		base::DataMatrix &	trainData,
		double	lambda
	)

Std-Constructor.

Parameters

SparseGrid	reference to the sparse grid
trainData	reference to base::DataMatrix that contains the training data
lambda	the lambda, the regression parameter

References sgpp::op_factory::createOperationMultipleEval(), sgpp::datadriven::DMSystemMatrixBase::dataset_, and sgpp::base::DataMatrix::getNrows().

◆ ~SystemMatrixLeastSquaresIdentity()

sgpp::datadriven::SystemMatrixLeastSquaresIdentity::~SystemMatrixLeastSquaresIdentity ( )

virtual

Std-Destructor.

Member Function Documentation

◆ generateb()

void sgpp::datadriven::SystemMatrixLeastSquaresIdentity::generateb	(	base::DataVector &	classes,
		base::DataVector &	b
	)

virtual

Generates the right hand side of the classification equation.

Parameters

classes	the class information of the training data
b	reference to the vector that will contain the result of the matrix vector multiplication on the rhs

Implements sgpp::datadriven::DMSystemMatrixBase.

References sgpp::datadriven::DMSystemMatrixBase::completeTimeMultTrans_, sgpp::datadriven::DMSystemMatrixBase::computeTimeMultTrans_, sgpp::datadriven::DMSystemMatrixBase::myTimer_, sgpp::base::SGppStopwatch::start(), and sgpp::base::SGppStopwatch::stop().

◆ mult()

void sgpp::datadriven::SystemMatrixLeastSquaresIdentity::mult	(	base::DataVector &	alpha,
		base::DataVector &	result
	)

virtual

starts the Multiplication with the matrix

Parameters

alpha	DataVector that contains the ansatzfunctions' coefficients
result	DataVector into which the result of the Laplace operation is stored

Implements sgpp::datadriven::DMSystemMatrixBase.

References sgpp::base::DataVector::axpy(), sgpp::datadriven::DMSystemMatrixBase::completeTimeMult_, sgpp::datadriven::DMSystemMatrixBase::completeTimeMultTrans_, sgpp::datadriven::DMSystemMatrixBase::computeTimeMult_, sgpp::datadriven::DMSystemMatrixBase::computeTimeMultTrans_, sgpp::datadriven::DMSystemMatrixBase::lambda_, sgpp::datadriven::DMSystemMatrixBase::myTimer_, sgpp::base::SGppStopwatch::start(), and sgpp::base::SGppStopwatch::stop().

◆ prepareGrid()

void sgpp::datadriven::SystemMatrixLeastSquaresIdentity::prepareGrid ( )

virtual

forward declaration

rebuilds the base::DataMatrix for Level and Index this routine is needed for supporting adaptive grids with vectorized high performance kernels

Reimplemented from sgpp::datadriven::DMSystemMatrixBase.

◆ setImplementation()

void sgpp::datadriven::SystemMatrixLeastSquaresIdentity::setImplementation ( datadriven::OperationMultipleEvalConfiguration operationConfiguration )

References sgpp::op_factory::createOperationMultipleEval(), and sgpp::datadriven::DMSystemMatrixBase::dataset_.

Referenced by sgpp::datadriven::LearnerLeastSquaresIdentity::createDMSystem().

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

datadriven/src/sgpp/datadriven/algorithm/SystemMatrixLeastSquaresIdentity.hpp
datadriven/src/sgpp/datadriven/algorithm/SystemMatrixLeastSquaresIdentity.cpp

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ SystemMatrixLeastSquaresIdentity()

◆ ~SystemMatrixLeastSquaresIdentity()

Member Function Documentation

◆ generateb()

◆ mult()

◆ prepareGrid()

◆ setImplementation()