org.maltparser.parser.guide.instance

Class FeatureDivideModel

java.lang.Object

org.maltparser.parser.guide.instance.FeatureDivideModel

All Implemented Interfaces:

InstanceModel, Model

public class FeatureDivideModel
extends java.lang.Object
implements InstanceModel

The feature divide model is used for divide the training instances into several models according to a divide feature. Usually this strategy decrease the training and classification time, but can also decrease the accuracy of the parser.

Author:

Johan Hall

Constructor Summary

Constructors

Constructor and Description
FeatureDivideModel(Model parent) Constructs a feature divide model.

Method Summary

Modifier and Type	Method and Description
void	addInstance(FeatureVector featureVector, SingleDecision decision)
void	decreaseFrequency()
FeatureVector	extract(FeatureVector featureVector)
void	finalizeSentence(DependencyStructure dependencyGraph)
int	getFrequency() Returns the frequency (number of instances)
ClassifierGuide	getGuide()
java.lang.String	getModelName()
Model	getParent() Returns the parent model
void	increaseFrequency() Increase the frequency by 1
protected void	load()
void	noMoreInstances(FeatureModel featureModel)
boolean	predict(FeatureVector featureVector, SingleDecision decision)
FeatureVector	predictExtract(FeatureVector featureVector, SingleDecision decision)
protected void	save() Saves the feature divide model settings .dsm file.
protected void	setFrequency(int frequency) Sets the frequency (number of instances)
void	terminate()
java.lang.String	toString()
void	train()

Methods inherited from class java.lang.Object

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

Constructor Detail

FeatureDivideModel

public FeatureDivideModel(Model parent)
                   throws MaltChainedException

Constructs a feature divide model.

Parameters:

parent - the parent guide model.

Throws:

MaltChainedException

Method Detail

addInstance

public void addInstance(FeatureVector featureVector,
                        SingleDecision decision)
                 throws MaltChainedException

Specified by:

addInstance in interface InstanceModel

Throws:

MaltChainedException

noMoreInstances

public void noMoreInstances(FeatureModel featureModel)
                     throws MaltChainedException

Specified by:

noMoreInstances in interface Model

Throws:

MaltChainedException

finalizeSentence

public void finalizeSentence(DependencyStructure dependencyGraph)
                      throws MaltChainedException

Specified by:

finalizeSentence in interface Model

Throws:

MaltChainedException

predict

public boolean predict(FeatureVector featureVector,
                       SingleDecision decision)
                throws MaltChainedException

Specified by:

predict in interface InstanceModel

Throws:

MaltChainedException

predictExtract

public FeatureVector predictExtract(FeatureVector featureVector,
                                    SingleDecision decision)
                             throws MaltChainedException

Specified by:

predictExtract in interface InstanceModel

Throws:

MaltChainedException

extract

public FeatureVector extract(FeatureVector featureVector)
                      throws MaltChainedException

Specified by:

extract in interface InstanceModel

Throws:

MaltChainedException

terminate

public void terminate()
               throws MaltChainedException

Specified by:

terminate in interface Model

Throws:

MaltChainedException

train

public void train()
           throws MaltChainedException

Specified by:

train in interface InstanceModel

Throws:

MaltChainedException

save

protected void save()
             throws MaltChainedException

Saves the feature divide model settings .dsm file.

Throws:

MaltChainedException

load

protected void load()
             throws MaltChainedException

Throws:

MaltChainedException

getParent

public Model getParent()

Returns the parent model

Returns:

the parent model

getGuide

public ClassifierGuide getGuide()

Specified by:

getGuide in interface Model

getModelName

public java.lang.String getModelName()
                              throws MaltChainedException

Specified by:

getModelName in interface Model

Throws:

MaltChainedException

getFrequency

public int getFrequency()

Returns the frequency (number of instances)

Returns:

the frequency (number of instances)

increaseFrequency

public void increaseFrequency()

Increase the frequency by 1

Specified by:

increaseFrequency in interface InstanceModel

decreaseFrequency

public void decreaseFrequency()

Specified by:

decreaseFrequency in interface InstanceModel

setFrequency

protected void setFrequency(int frequency)

Sets the frequency (number of instances)

Parameters:

frequency - (number of instances)

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object