de.jungblut.math.minimize

Class AbstractMinimizer

java.lang.Object

de.jungblut.math.minimize.AbstractMinimizer

All Implemented Interfaces:

Minimizer

Direct Known Subclasses:

Fmincg, GradientDescent, OWLQN, ParticleSwarmOptimization

public abstract class AbstractMinimizer
extends Object
implements Minimizer

Abstract minimizer class that adds functionality that can be shared between many minimizers. Currently it has just a iteration completion callback facility, but can be later extended to share line searching code or other shared utilities.

Author:

thomas.jungblut

Constructor Summary

Constructors

Constructor and Description
AbstractMinimizer()

Method Summary

Modifier and Type	Method and Description
void	addIterationCompletionCallback(IterationCompletionListener lst) Add a callback listener that triggers after a iteration.
protected void	onIterationFinished(int iteration, double cost, de.jungblut.math.DoubleVector currentWeights) Callback method that should be called from an explicit subclass once an iteration was finished.

Methods inherited from class java.lang.Object

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

Methods inherited from interface de.jungblut.math.minimize.Minimizer

minimize

Constructor Detail

AbstractMinimizer

public AbstractMinimizer()

Method Detail

addIterationCompletionCallback

public void addIterationCompletionCallback(IterationCompletionListener lst)

Add a callback listener that triggers after a iteration.

Parameters:

lst - the iteration completion listener.

onIterationFinished

protected final void onIterationFinished(int iteration,
                                         double cost,
                                         de.jungblut.math.DoubleVector currentWeights)

Callback method that should be called from an explicit subclass once an iteration was finished.

Parameters:

iteration - the number of the current iteration.

cost - the cost at the current iteration.

currentWeights - the current optimal weights.