Package opennlp.tools.namefind

Klasse DefaultNameContextGenerator

java.lang.Object

opennlp.tools.namefind.DefaultNameContextGenerator

Alle implementierten Schnittstellen:

NameContextGenerator, BeamSearchContextGenerator<String>

public class DefaultNameContextGenerator
extends Object
implements NameContextGenerator

A NameContextGenerator implementation for determining contextual features for a tag-chunk style named-entity recognizer.

Konstruktorübersicht

Konstruktoren

Konstruktor	Beschreibung
DefaultNameContextGenerator(AdaptiveFeatureGenerator... featureGenerators)	Creates a name context generator with the specified feature generators.

Methodenübersicht

Modifizierer und Typ	Methode	Beschreibung
void	addFeatureGenerator(AdaptiveFeatureGenerator generator)	Adds a feature generator.
void	clearAdaptiveData()	Informs all the feature generators that the context of the adaptive data (typically a document) is no longer valid and should be cleared.
String[]	getContext(int index, String[] tokens, String[] preds, Object[] additionalContext)	Finds the context for finding names at the specified index.
void	updateAdaptiveData(String[] tokens, String[] outcomes)	Informs all the feature generators that the specified tokens have been classified with the corresponds set of specified outcomes.

Von Klasse geerbte Methoden java.lang.Object

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

Konstruktordetails

DefaultNameContextGenerator

public DefaultNameContextGenerator(AdaptiveFeatureGenerator... featureGenerators)

Creates a name context generator with the specified feature generators.

Parameter:

featureGenerators - One or more feature generators.

Methodendetails

addFeatureGenerator

public void addFeatureGenerator(AdaptiveFeatureGenerator generator)

Beschreibung aus Schnittstelle kopiert: NameContextGenerator

Adds a feature generator.

Angegeben von:

addFeatureGenerator in Schnittstelle NameContextGenerator

Parameter:

generator - The feature generator to add.

updateAdaptiveData

public void updateAdaptiveData(String[] tokens,
 String[] outcomes)

Beschreibung aus Schnittstelle kopiert: NameContextGenerator

Informs all the feature generators that the specified tokens have been classified with the corresponds set of specified outcomes.

Angegeben von:

updateAdaptiveData in Schnittstelle NameContextGenerator

Parameter:

tokens - The tokens of a sentence or another text unit which has been processed.

outcomes - The outcomes associated with the specified tokens.

clearAdaptiveData

public void clearAdaptiveData()

Beschreibung aus Schnittstelle kopiert: NameContextGenerator

Informs all the feature generators that the context of the adaptive data (typically a document) is no longer valid and should be cleared.

Angegeben von:

clearAdaptiveData in Schnittstelle NameContextGenerator

getContext

public String[] getContext(int index,
 String[] tokens,
 String[] preds,
 Object[] additionalContext)

Finds the context for finding names at the specified index.

Angegeben von:

getContext in Schnittstelle BeamSearchContextGenerator<String>

Parameter:

index - The index of the token in the specified tokens for which the context should be constructed.

tokens - The tokens of the sentence. The toString() methods of these objects should return the token text.

preds - The previous decisions made in the tagging of this sequence. Only indices less than index will be examined.

additionalContext - Addition features which may be based on a context outside the sentence.

Gibt zurück:

The context for finding names at the specified index.