edu.cmu.minorthird.classify.algorithms.linear
Class ROMMALearner

java.lang.Object
  edu.cmu.minorthird.classify.OnlineClassifierLearner
      edu.cmu.minorthird.classify.OnlineBinaryClassifierLearner
          edu.cmu.minorthird.classify.algorithms.linear.ROMMALearner

All Implemented Interfaces:

BinaryClassifierLearner, ClassifierLearner, java.io.Serializable, java.lang.Cloneable

public class ROMMALearner
extends OnlineBinaryClassifierLearner
implements java.io.Serializable

Created on Sep 27, 2005

Author:

Vitor R. Carvalho ROMMA (Relaxed Online Maximum Margin Algorithm) algorithm as described in "The Relaxed Online Maximum Margin Algorithm", by Yi Li and Philip M. Long, Machine Learning, 46(1-3):361-387,2002. Additionally, it implements the Aggressive version(Aggressive ROMMA). (parameter aggressive) Additionally, it implements optionally a voting scheme. (voted parameter)

See Also:

Serialized Form

Constructor Summary

ROMMALearner()

ROMMALearner(boolean agg, boolean voted)

Method Summary

void	addExample(Example example) Subclasses should use this method to perform whatever incremental update is needed after in response to a new example.
Classifier	getClassifier() Subclasses should use this method to return the current classifier.
double	getHyperplaneNormSquared(Hyperplane hyp)
double	getNormSquared(Instance ins)
static void	main(java.lang.String[] args)
void	reset() 'forget' everything about the last learning task, and start a new task.
java.lang.String	toString()

Methods inherited from class edu.cmu.minorthird.classify.OnlineBinaryClassifierLearner

getBinaryClassifier, getSchema, setSchema

Methods inherited from class edu.cmu.minorthird.classify.OnlineClassifierLearner

completeTraining, copy, hasNextQuery, nextQuery, setInstancePool

Methods inherited from class java.lang.Object

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

Methods inherited from interface edu.cmu.minorthird.classify.ClassifierLearner

completeTraining, copy, hasNextQuery, nextQuery, setInstancePool

Constructor Detail

ROMMALearner

public ROMMALearner()

ROMMALearner

public ROMMALearner(boolean agg,
                    boolean voted)

Method Detail

reset

public void reset()

Description copied from class: OnlineClassifierLearner

'forget' everything about the last learning task, and start a new task. Subclasses need to implement this method

Specified by:

reset in interface ClassifierLearner

Specified by:

reset in class OnlineClassifierLearner

addExample

public void addExample(Example example)

Description copied from class: OnlineClassifierLearner

Subclasses should use this method to perform whatever incremental update is needed after in response to a new example.

Specified by:

addExample in interface ClassifierLearner

Specified by:

addExample in class OnlineClassifierLearner

getNormSquared

public double getNormSquared(Instance ins)

getHyperplaneNormSquared

public double getHyperplaneNormSquared(Hyperplane hyp)

getClassifier

public Classifier getClassifier()

Description copied from class: OnlineClassifierLearner

Subclasses should use this method to return the current classifier.

Specified by:

getClassifier in interface ClassifierLearner

Specified by:

getClassifier in class OnlineClassifierLearner

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

main

public static void main(java.lang.String[] args)