hex.optimization

Class OptimizationUtils.BacktrackingLS

java.lang.Object

hex.optimization.OptimizationUtils.BacktrackingLS

All Implemented Interfaces:

OptimizationUtils.LineSearchSolver

Enclosing class:

OptimizationUtils

public static final class OptimizationUtils.BacktrackingLS
extends java.lang.Object
implements OptimizationUtils.LineSearchSolver

Constructor Summary

Constructors

Constructor and Description
OptimizationUtils.BacktrackingLS(double stepDec)

Method Summary

Methods

Modifier and Type	Method and Description
boolean	evaluate(OptimizationUtils.GradientSolver slvr, OptimizationUtils.GradientInfo ginfo, double[] betaStart, double[] direction, double minStep, double maxStep, int maxfev)
OptimizationUtils.GradientInfo	ginfo()
int	nfeval()
OptimizationUtils.LineSearchSolver	setInitialStep(double s)
double	step()

Methods inherited from class java.lang.Object

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

Constructor Detail

OptimizationUtils.BacktrackingLS

public OptimizationUtils.BacktrackingLS(double stepDec)

Method Detail

nfeval

public int nfeval()

Specified by:

nfeval in interface OptimizationUtils.LineSearchSolver

setInitialStep

public OptimizationUtils.LineSearchSolver setInitialStep(double s)

Specified by:

setInitialStep in interface OptimizationUtils.LineSearchSolver

evaluate

public boolean evaluate(OptimizationUtils.GradientSolver slvr,
               OptimizationUtils.GradientInfo ginfo,
               double[] betaStart,
               double[] direction,
               double minStep,
               double maxStep,
               int maxfev)

Specified by:

evaluate in interface OptimizationUtils.LineSearchSolver

step

public double step()

Specified by:

step in interface OptimizationUtils.LineSearchSolver

ginfo

public OptimizationUtils.GradientInfo ginfo()

Specified by:

ginfo in interface OptimizationUtils.LineSearchSolver