org.nd4j.linalg.solvers

Class VectorizedNonZeroStoppingConjugateGradient

java.lang.Object

org.nd4j.linalg.solvers.VectorizedNonZeroStoppingConjugateGradient

All Implemented Interfaces:

OptimizerMatrix

public class VectorizedNonZeroStoppingConjugateGradient
extends java.lang.Object
implements OptimizerMatrix

Modified based on cc.mallet.optimize.ConjugateGradient

no termination when zero tolerance

Since:

2013-08-25

Constructor Summary

Constructors

Constructor and Description
VectorizedNonZeroStoppingConjugateGradient(OptimizableByGradientValueMatrix function)
VectorizedNonZeroStoppingConjugateGradient(OptimizableByGradientValueMatrix function, double initialStepSize)
VectorizedNonZeroStoppingConjugateGradient(OptimizableByGradientValueMatrix function, double initialStepSize, IterationListener listener)
VectorizedNonZeroStoppingConjugateGradient(OptimizableByGradientValueMatrix function, IterationListener listener)

Method Summary

Modifier and Type	Method and Description
double	getDgg()
double	getFp()
double	getFret()
INDArray	getG()
double	getGam()
double	getGg()
INDArray	getH()
double	getInitialStepSize()
int	getMaxIterations()
double	getStep()
double	getStepSize()
INDArray	getXi()
boolean	isConverged() Whether the algorithm is converged
boolean	optimize() Run optimize
boolean	optimize(int numIterations) Run optimize up to the specified number of epochs
void	reset()
void	setDgg(double dgg)
void	setFp(double fp)
void	setFret(double fret)
void	setG(INDArray g)
void	setGam(double gam)
void	setGg(double gg)
void	setH(INDArray h)
void	setInitialStepSize(double initialStepSize)
void	setLineMaximizer(LineOptimizerMatrix lineMaximizer)
void	setMaxIterations(int maxIterations) The default max number of iterations to run
void	setStep(double step)
void	setTolerance(double t) The tolerance for change when running
void	setXi(INDArray xi)

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

VectorizedNonZeroStoppingConjugateGradient

public VectorizedNonZeroStoppingConjugateGradient(OptimizableByGradientValueMatrix function,
                                                  double initialStepSize)

VectorizedNonZeroStoppingConjugateGradient

public VectorizedNonZeroStoppingConjugateGradient(OptimizableByGradientValueMatrix function,
                                                  IterationListener listener)

VectorizedNonZeroStoppingConjugateGradient

public VectorizedNonZeroStoppingConjugateGradient(OptimizableByGradientValueMatrix function,
                                                  double initialStepSize,
                                                  IterationListener listener)

VectorizedNonZeroStoppingConjugateGradient

public VectorizedNonZeroStoppingConjugateGradient(OptimizableByGradientValueMatrix function)

Method Detail

isConverged

public boolean isConverged()

Description copied from interface: OptimizerMatrix

Whether the algorithm is converged

Specified by:

isConverged in interface OptimizerMatrix

Returns:

true if the algorithm converged, false otherwise

setLineMaximizer

public void setLineMaximizer(LineOptimizerMatrix lineMaximizer)

setInitialStepSize

public void setInitialStepSize(double initialStepSize)

getInitialStepSize

public double getInitialStepSize()

getStepSize

public double getStepSize()

optimize

public boolean optimize()

Description copied from interface: OptimizerMatrix

Run optimize

Specified by:

optimize in interface OptimizerMatrix

Returns:

whether the algorithm converged properly

setTolerance

public void setTolerance(double t)

Description copied from interface: OptimizerMatrix

The tolerance for change when running

Specified by:

setTolerance in interface OptimizerMatrix

optimize

public boolean optimize(int numIterations)

Description copied from interface: OptimizerMatrix

Run optimize up to the specified number of epochs

Specified by:

optimize in interface OptimizerMatrix

Parameters:

numIterations - the max number of epochs to run

Returns:

whether the algorihtm converged properly

reset

public void reset()

getMaxIterations

public int getMaxIterations()

setMaxIterations

public void setMaxIterations(int maxIterations)

Description copied from interface: OptimizerMatrix

The default max number of iterations to run

Specified by:

setMaxIterations in interface OptimizerMatrix

getH

public INDArray getH()

setH

public void setH(INDArray h)

getG

public INDArray getG()

setG

public void setG(INDArray g)

getXi

public INDArray getXi()

setXi

public void setXi(INDArray xi)

getFret

public double getFret()

setFret

public void setFret(double fret)

getStep

public double getStep()

setStep

public void setStep(double step)

getDgg

public double getDgg()

setDgg

public void setDgg(double dgg)

getGam

public double getGam()

setGam

public void setGam(double gam)

getGg

public double getGg()

setGg

public void setGg(double gg)

getFp

public double getFp()

setFp

public void setFp(double fp)