ClassifierEnsemble (Mallet 2 API)

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.

Author:

Andrew McCallum

See Also:

Serialized Form

- Field Summary
  - Fields inherited from class cc.mallet.classify.Classifier
    instancePipe
- Constructor Summary
  
  Constructors
  Constructor Description
  
  ClassifierEnsemble(Classifier[] classifiers, double[] weights)
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method 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
    clone, equals, finalize, 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