jsat.classifiers

Class MajorityVote

java.lang.Object

jsat.classifiers.MajorityVote

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, Classifier

public class MajorityVote
extends java.lang.Object
implements Classifier

The Majority Vote classifier is a simple ensemble classifier. Given a list of base classifiers, it will sum the most likely votes from each base classifier and return a result based on the majority votes. It does not take into account the confidence of the votes.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
MajorityVote(Classifier... voters) Creates a new Majority Vote classifier using the given voters.
MajorityVote(java.util.List<Classifier> voters) Creates a new Majority Vote classifier using the given voters.

Method Summary

Modifier and Type	Method and Description
CategoricalResults	classify(DataPoint data) Performs classification on the given data point.
Classifier	clone()
boolean	supportsWeightedData() Indicates whether the model knows how to train using weighted data points.
void	train(ClassificationDataSet dataSet) Trains the classifier and constructs a model for classification using the given data set.
void	train(ClassificationDataSet dataSet, boolean parallel) Trains the classifier and constructs a model for classification using the given data set.

Methods inherited from class java.lang.Object

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

Constructor Detail

MajorityVote

public MajorityVote(Classifier... voters)

Creates a new Majority Vote classifier using the given voters. If already trained, the Majority Vote classifier can be used immediately. The MajorityVote does not make copies of the given classifiers.
null values in the array will have no vote.

Parameters:

voters - the array of voters to use

MajorityVote

public MajorityVote(java.util.List<Classifier> voters)

Creates a new Majority Vote classifier using the given voters. If already trained, the Majority Vote classifier can be used immediately. The MajorityVote does not make copies of the given classifiers.
null values in the array will have no vote.

Parameters:

voters - the list of voters to use

Method Detail

classify

public CategoricalResults classify(DataPoint data)

Description copied from interface: Classifier

Performs classification on the given data point.

Specified by:

classify in interface Classifier

Parameters:

data - the data point to classify

Returns:

the results of the classification.

train

public void train(ClassificationDataSet dataSet,
                  boolean parallel)

Description copied from interface: Classifier

Trains the classifier and constructs a model for classification using the given data set. If the training method knows how, it will used the threadPool to conduct training in parallel. This method will block until the training has completed.

Specified by:

train in interface Classifier

Parameters:

dataSet - the data set to train on

parallel - true if multiple threads should be used to train the model. false if it should be done in a single threaded manner.

train

public void train(ClassificationDataSet dataSet)

Description copied from interface: Classifier

Trains the classifier and constructs a model for classification using the given data set.

Specified by:

train in interface Classifier

Parameters:

dataSet - the data set to train on

supportsWeightedData

public boolean supportsWeightedData()

Description copied from interface: Classifier

Indicates whether the model knows how to train using weighted data points. If it does, the model will train assuming the weights. The values returned by this method may change depending on the parameters set for the model.

Specified by:

supportsWeightedData in interface Classifier

Returns:

true if the model supports weighted data, false otherwise

clone

public Classifier clone()

Specified by:

clone in interface Classifier

Overrides:

clone in class java.lang.Object