org.nd4j.linalg.solvers

Class VectorizedBackTrackLineSearch

java.lang.Object

org.nd4j.linalg.solvers.VectorizedBackTrackLineSearch

All Implemented Interfaces:

LineOptimizerMatrix

public class VectorizedBackTrackLineSearch
extends java.lang.Object
implements LineOptimizerMatrix

Nested Class Summary

Nested classes/interfaces inherited from interface org.nd4j.linalg.solvers.api.LineOptimizerMatrix

LineOptimizerMatrix.ByGradient

Constructor Summary

Constructors

Constructor and Description
VectorizedBackTrackLineSearch(OptimizableByGradientValueMatrix optimizable)

Method Summary

Modifier and Type	Method and Description
double	getStpmax()
double	optimize(INDArray line, int lineSearchIteration, double initialStep) Returns the last step size used.
void	setAbsTolx(double tolx) Sets the tolerance of absolute diff in function value.
void	setRelTolx(double tolx) Sets the tolerance of relative diff in function value.
void	setStpmax(double stpmax)

Methods inherited from class java.lang.Object

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

Constructor Detail

VectorizedBackTrackLineSearch

public VectorizedBackTrackLineSearch(OptimizableByGradientValueMatrix optimizable)

Method Detail

setStpmax

public void setStpmax(double stpmax)

getStpmax

public double getStpmax()

setRelTolx

public void setRelTolx(double tolx)

Sets the tolerance of relative diff in function value. Line search converges if abs(delta x / x) < tolx for all coordinates.

setAbsTolx

public void setAbsTolx(double tolx)

Sets the tolerance of absolute diff in function value. Line search converges if abs(delta x) < tolx for all coordinates.

optimize

public double optimize(INDArray line,
                       int lineSearchIteration,
                       double initialStep)
                throws InvalidStepException

Description copied from interface: LineOptimizerMatrix

Returns the last step size used.

Specified by:

optimize in interface LineOptimizerMatrix

Throws:

InvalidStepException