diviner
Class MultiMetricDiviner

java.lang.Object
  function.BasicScalarFunction
      function.VariableDomainScalarFunction
          diviner.BasicBoundConstrainedDiviner
              diviner.ImprovementDiviner
                  diviner.MultiMetricDiviner

All Implemented Interfaces:

BoundConstrainedDiviner, Computable, ScalarFunction, VariableBounds, VariableInputDimension

public class MultiMetricDiviner
extends ImprovementDiviner

Uses multiple figures of merit to compute 'goodness' of a point for sampling. Achieves this by containing a number of diviners and using the desired one at any stage. Cycles through the list of diviners each time the setTargetObjective(double) method is invoked. (Bit of a hack? Maybe not.)

Author:

dgorur

Field Summary

Fields inherited from class diviner.ImprovementDiviner

improvement, postMean, postStdDev, scaledImprovement

Fields inherited from class function.BasicScalarFunction

DEFAULT_BOUNDS, DEFAULT_DIM, VALUE_OUTSIDE_BOUNDS

Constructor Summary

MultiMetricDiviner()
Default constructor.

Method Summary

java.util.ArrayList<ImprovementDiviner>	getDiviners() Returns the diviners.
void	init() Initialization method.
double	quickCompute(double[] x) Compute method without dimension checking.
void	setBounds(Hypercube bounds) Sets the bounds for this ScalarFunction.
void	setDiviners(java.util.ArrayList<ImprovementDiviner> diviners) Sets the diviners.
void	setObjectiveModel(ApproxModel approxModel) Sets the ApproxModel for this BoundConstrainedDiviner.
void	setTargetObjective(double obj) Sets the value of the target objective desired.

Methods inherited from class diviner.ImprovementDiviner

evaluatePosterior, getTargetObjective

Methods inherited from class diviner.BasicBoundConstrainedDiviner

getObjectiveModel

Methods inherited from class function.VariableDomainScalarFunction

getBounds, getInputDimension, setInputDimension

Methods inherited from class function.BasicScalarFunction

checkDimensions, compute, compute, compute, compute, compute, compute, getOutputDimension, isWithinBounds, makeBounds, quickCompute

Methods inherited from class java.lang.Object

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

Methods inherited from interface function.ScalarFunction

compute, compute, compute, compute, quickCompute

Methods inherited from interface function.Computable

compute, compute, getBounds, getInputDimension, getOutputDimension, isWithinBounds

Constructor Detail

MultiMetricDiviner

public MultiMetricDiviner()

Default constructor.

Method Detail

getDiviners

public java.util.ArrayList<ImprovementDiviner> getDiviners()

Returns the diviners.

Returns:

the diviners.

setDiviners

public void setDiviners(java.util.ArrayList<ImprovementDiviner> diviners)

Sets the diviners.

Parameters:

diviners - An ArrayList of ImprovementDiviners.

init

public void init()

Description copied from class: BasicScalarFunction

Initialization method.

Specified by:

init in interface BoundConstrainedDiviner

Specified by:

init in interface ScalarFunction

Overrides:

init in class BasicBoundConstrainedDiviner

quickCompute

public double quickCompute(double[] x)

Description copied from class: BasicScalarFunction

Compute method without dimension checking. All subclasses must implement this method: it is the core method that defines the function.

Specified by:

quickCompute in interface ScalarFunction

Specified by:

quickCompute in class BasicScalarFunction

Parameters:

x - the given input.

Returns:

the output corresponding to the given input.

setBounds

public void setBounds(Hypercube bounds)

Description copied from interface: VariableBounds

Sets the bounds for this ScalarFunction.

Specified by:

setBounds in interface VariableBounds

Overrides:

setBounds in class VariableDomainScalarFunction

Parameters:

bounds - the given bounds.

setObjectiveModel

public void setObjectiveModel(ApproxModel approxModel)

Description copied from interface: BoundConstrainedDiviner

Sets the ApproxModel for this BoundConstrainedDiviner.

Specified by:

setObjectiveModel in interface BoundConstrainedDiviner

Overrides:

setObjectiveModel in class BasicBoundConstrainedDiviner

Parameters:

approxModel - the given ApproxModel.

setTargetObjective

public void setTargetObjective(double obj)

Description copied from class: ImprovementDiviner

Sets the value of the target objective desired.

Overrides:

setTargetObjective in class ImprovementDiviner

Parameters:

obj - desired value of objective.