Package opennlp.tools.util.featuregen

Klasse BrownCluster

java.lang.Object

opennlp.tools.util.featuregen.BrownCluster

Alle implementierten Schnittstellen:

SerializableArtifact

public class BrownCluster
extends Object
implements SerializableArtifact

Class to load a Brown cluster document: word\tword_class\tprob

Originally available at: http://metaoptimize.com/projects/wordreprs/.

Further details can be found in the related research paper.

The file containing the clustering lexicon has to be passed as the value of the dict attribute of each BrownCluster feature generator.

Verschachtelte Klassen - Übersicht

Verschachtelte Klassen

Modifizierer und Typ	Klasse	Beschreibung
static class	BrownCluster.BrownClusterSerializer

Konstruktorübersicht

Konstruktoren

Konstruktor	Beschreibung
BrownCluster(InputStream in)	Instatiates a BrownCluster and its related token to cluster map via an InputStream.

Methodenübersicht

Modifizierer und Typ	Methode	Beschreibung
Class<?>	getArtifactSerializerClass()	Retrieves the class which can serialize and recreate this artifact.
String	lookupToken(String string)	Check if a token is in the Brown:paths, token map.
void	serialize(OutputStream out)

Von Klasse geerbte Methoden java.lang.Object

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

Konstruktordetails

BrownCluster

public BrownCluster(InputStream in)
             throws IOException

Instatiates a BrownCluster and its related token to cluster map via an InputStream.

Note: Only tokens with frequency bigger than 5 will be added.

Parameter:

in - A valid, open InputStream to read from.

Löst aus:

IOException - Thrown if errors occurred reading from in.

Methodendetails

lookupToken

public String lookupToken(String string)

Check if a token is in the Brown:paths, token map.

Parameter:

string - the token to look-up

Gibt zurück:

the brown class if such token is in the brown cluster map

serialize

public void serialize(OutputStream out)
               throws IOException

Löst aus:

IOException

getArtifactSerializerClass

public Class<?> getArtifactSerializerClass()

Beschreibung aus Schnittstelle kopiert: SerializableArtifact

Retrieves the class which can serialize and recreate this artifact.

Note: The serializer class must have a public zero argument constructor or an exception is thrown during model serialization/loading.

Angegeben von:

getArtifactSerializerClass in Schnittstelle SerializableArtifact

Gibt zurück:

The corresponding ArtifactSerializer class.