net.sourceforge.jabm.learning
Class AbstractLearner

java.lang.Object
  net.sourceforge.jabm.learning.AbstractLearner

All Implemented Interfaces:

java.io.Serializable, Learner

Direct Known Subclasses:

DumbLearner, DumbRandomLearner, MetaLearner, QLearner, RothErevLearner, SlidingWindowLearner, StatelessQLearner, WidrowHoffLearner

public abstract class AbstractLearner
extends java.lang.Object
implements Learner, java.io.Serializable

See Also:

Serialized Form

Field Summary

protected LearnerMonitor

monitor

Constructor Summary

AbstractLearner()

Method Summary

abstract void	dumpState(DataWriter out) Write out our state data to the specified data writer.
abstract double	getLearningDelta() Return a value indicative of the amount of learning that occured during the last iteration.
void	monitor() A hook to provide monitoring functionality.

Methods inherited from class java.lang.Object

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

Field Detail

monitor

protected LearnerMonitor monitor

Constructor Detail

AbstractLearner

public AbstractLearner()

Method Detail

monitor

public void monitor()

Description copied from interface: Learner

A hook to provide monitoring functionality. Implementations of learning algorithms should either log, or provide a visualisation of, their state in response to this method.

Specified by:

monitor in interface Learner

getLearningDelta

public abstract double getLearningDelta()

Description copied from interface: Learner

Return a value indicative of the amount of learning that occured during the last iteration. Values close to 0.0 indicate that the learner has converged to an equilibrium state.

Specified by:

getLearningDelta in interface Learner

Returns:

A double representing the amount of learning that occured.

dumpState

public abstract void dumpState(DataWriter out)

Description copied from interface: Learner

Write out our state data to the specified data writer.

Specified by:

dumpState in interface Learner