cc.mallet.classify

Class ClassifierEnsemble

java.lang.Object

cc.mallet.classify.Classifier

cc.mallet.classify.ClassifierEnsemble

All Implemented Interfaces:

AlphabetCarrying, java.io.Serializable

public class ClassifierEnsemble
extends Classifier

Classifer for an ensemble of classifers, combined with learned weights. The procedure is to obtain the score from each classifier (typically p(y|x)), perform the weighted sum of these scores, then exponentiate the summed score for each class, and re-normalize the resulting per-class scores. In other words, the scores of the ensemble classifiers are treated as input features in a Maximum Entropy classifier.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
ClassifierEnsemble(Classifier[] classifiers, double[] weights)

Method Summary

Modifier and Type	Method and Description
Classification	classify(Instance instance)

Methods inherited from class cc.mallet.classify.Classifier

alphabetsMatch, classify, classify, classify, getAccuracy, getAlphabet, getAlphabets, getAverageRank, getF1, getF1, getF1, getFeatureSelection, getInstancePipe, getLabelAlphabet, getPerClassFeatureSelection, getPrecision, getPrecision, getPrecision, getRecall, getRecall, getRecall, print, print

Methods inherited from class java.lang.Object

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

Constructor Detail

ClassifierEnsemble

public ClassifierEnsemble(Classifier[] classifiers,
                          double[] weights)

Method Detail

classify

public Classification classify(Instance instance)

Specified by:

classify in class Classifier