edu.stanford.nlp.tagger.maxent

Class TaggerExperiments

java.lang.Object

edu.stanford.nlp.maxent.Experiments

edu.stanford.nlp.tagger.maxent.TaggerExperiments

public class TaggerExperiments
extends Experiments

This class represents the training samples. It can return statistics of them, for example the frequency of each x or y in the training data.

Author:

Kristina Toutanova

Field Summary

Fields inherited from class edu.stanford.nlp.maxent.Experiments

maxY, px, pxy, py, values, vArray, xSize, ySize

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	TaggerExperiments(TaggerConfig config, MaxentTagger maxentTagger) This method gets feature statistics from a training file found in the TaggerConfig.

Method Summary

Methods

Modifier and Type	Method and Description
protected boolean	add(FeatureKey s) Adds a FeatureKey to the set of known FeatureKeys.
TaggerFeatures	getTaggerFeatures()
protected static boolean	isPopulated(int fNo, int size, MaxentTagger maxentTagger)
protected boolean	populated(int fNo, int size)

Methods inherited from class edu.stanford.nlp.maxent.Experiments

add, createIndex, get, getNumber, numY, print, print, ptilde, ptilde, ptildeX, ptildeXY, ptildeY, setMaxY, size

Methods inherited from class java.lang.Object

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

Constructor Detail

TaggerExperiments

protected TaggerExperiments(TaggerConfig config,
                 MaxentTagger maxentTagger)
                     throws IOException

This method gets feature statistics from a training file found in the TaggerConfig. It is the start of the training process.

Throws:

IOException

Method Detail

getTaggerFeatures

public TaggerFeatures getTaggerFeatures()

add

protected boolean add(FeatureKey s)

Adds a FeatureKey to the set of known FeatureKeys.

Parameters:

s - The feature key to be added

Returns:

Whether the key was already known (false) or added (true)

populated

protected boolean populated(int fNo,
                int size)

isPopulated

protected static boolean isPopulated(int fNo,
                  int size,
                  MaxentTagger maxentTagger)