Package opennlp.tools.util.featuregen
Class BrownCluster
- java.lang.Object
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- opennlp.tools.util.featuregen.BrownCluster
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- All Implemented Interfaces:
SerializableArtifact
public class BrownCluster extends java.lang.Object implements SerializableArtifact
Class to load a Brown cluster document: word\tword_class\tprob http://metaoptimize.com/projects/wordreprs/ The file containing the clustering lexicon has to be passed as the value of the dict attribute of each BrownCluster feature generator.
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Nested Class Summary
Nested Classes Modifier and Type Class Description static class
BrownCluster.BrownClusterSerializer
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Constructor Summary
Constructors Constructor Description BrownCluster(java.io.InputStream in)
Generates the token to cluster map from Brown cluster input file.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description java.lang.Class<?>
getArtifactSerializerClass()
Retrieves the class which can serialize and recreate this artifact.java.lang.String
lookupToken(java.lang.String string)
Check if a token is in the Brown:paths, token map.void
serialize(java.io.OutputStream out)
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Constructor Detail
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BrownCluster
public BrownCluster(java.io.InputStream in) throws java.io.IOException
Generates the token to cluster map from Brown cluster input file. NOTE: we only add those tokens with frequency bigger than 5.- Parameters:
in
- the inputstream- Throws:
java.io.IOException
- the io exception
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Method Detail
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lookupToken
public java.lang.String lookupToken(java.lang.String string)
Check if a token is in the Brown:paths, token map.- Parameters:
string
- the token to look-up- Returns:
- the brown class if such token is in the brown cluster map
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serialize
public void serialize(java.io.OutputStream out) throws java.io.IOException
- Throws:
java.io.IOException
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getArtifactSerializerClass
public java.lang.Class<?> getArtifactSerializerClass()
Description copied from interface: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.- Specified by:
getArtifactSerializerClass
in interfaceSerializableArtifact
- Returns:
- the corresponding ArtifactSerializer class.
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