edu.nyu.jet.chunk

Class TokenClassifier

java.lang.Object

edu.nyu.jet.chunk.TokenClassifier

Direct Known Subclasses:

HMM, MaxEntNE

public abstract class TokenClassifier
extends Object

a trainable classifier for assigning tags to a sequence of tokens

Constructor Summary

Constructors

Constructor and Description
TokenClassifier()

Method Summary

Methods

Modifier and Type	Method and Description
abstract void	createModel()
double	getLocalMargin(Document doc, Annotation[] tokens, String excludedTag, int excludedTagStart, int excludedTagEnd)
double	getMargin()
double	getPathProbability()
abstract void	load(String fileName)
void	newDocument()
String[]	nextBest()
void	recordMargin()
abstract void	store(String fileName)
abstract void	train(Document doc, Annotation[] tokens, String[] tags)
abstract String[]	viterbi(Document doc, Annotation[] tokens)

Methods inherited from class java.lang.Object

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

Constructor Detail

TokenClassifier

public TokenClassifier()

Method Detail

train

public abstract void train(Document doc,
         Annotation[] tokens,
         String[] tags)

createModel

public abstract void createModel()

store

public abstract void store(String fileName)

load

public abstract void load(String fileName)

viterbi

public abstract String[] viterbi(Document doc,
               Annotation[] tokens)

nextBest

public String[] nextBest()

getLocalMargin

public double getLocalMargin(Document doc,
                    Annotation[] tokens,
                    String excludedTag,
                    int excludedTagStart,
                    int excludedTagEnd)

recordMargin

public void recordMargin()

getPathProbability

public double getPathProbability()

getMargin

public double getMargin()

newDocument

public void newDocument()