Package opennlp.tools.util.featuregen

Klasse CharacterNgramFeatureGenerator

java.lang.Object

opennlp.tools.util.featuregen.CharacterNgramFeatureGenerator

Alle implementierten Schnittstellen:

AdaptiveFeatureGenerator

public class CharacterNgramFeatureGenerator
extends Object
implements AdaptiveFeatureGenerator

The CharacterNgramFeatureGenerator uses character ngrams to generate features about each token.

Konstruktorübersicht

Konstruktoren

Konstruktor	Beschreibung
CharacterNgramFeatureGenerator()	Initializes a CharacterNgramFeatureGenerator with min length of 2 and max length of 5 for ngrams.
CharacterNgramFeatureGenerator(int minLength, int maxLength)	Initializes a CharacterNgramFeatureGenerator.

Methodenübersicht

Modifizierer und Typ	Methode	Beschreibung
void	createFeatures(List<String> features, String[] tokens, int index, String[] preds)	Adds the appropriate features for the token at the specified index with the specified array of previousOutcomes to the specified list of features.

Von Klasse geerbte Methoden java.lang.Object

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

Von Schnittstelle geerbte Methoden opennlp.tools.util.featuregen.AdaptiveFeatureGenerator

clearAdaptiveData, updateAdaptiveData

Konstruktordetails

CharacterNgramFeatureGenerator

public CharacterNgramFeatureGenerator(int minLength,
 int maxLength)

Initializes a CharacterNgramFeatureGenerator.

Parameter:

minLength - The minimum length to use. Must not be negative.

maxLength - The maximum length to use. Must not be negative.

CharacterNgramFeatureGenerator

public CharacterNgramFeatureGenerator()

Initializes a CharacterNgramFeatureGenerator with min length of 2 and max length of 5 for ngrams.

Methodendetails

createFeatures

public void createFeatures(List<String> features,
 String[] tokens,
 int index,
 String[] preds)

Beschreibung aus Schnittstelle kopiert: AdaptiveFeatureGenerator

Adds the appropriate features for the token at the specified index with the specified array of previousOutcomes to the specified list of features.

Angegeben von:

createFeatures in Schnittstelle AdaptiveFeatureGenerator

Parameter:

features - The list of features to be added to.

tokens - The tokens of the sentence or other text unit being processed.

index - The index of the token which is currently being processed.

preds - The outcomes for the tokens prior to the specified index.