Package org.apache.lucene.analysis.opennlp.tools

Class NLPLemmatizerOp

java.lang.Object

org.apache.lucene.analysis.opennlp.tools.NLPLemmatizerOp

public class NLPLemmatizerOp
extends Object

Supply OpenNLP Lemmatizer tools.

Both a dictionary-based lemmatizer and a MaxEnt lemmatizer are supported. If both are configured, the dictionary-based lemmatizer is tried first, and then the MaxEnt lemmatizer is consulted for out-of-vocabulary tokens.

The MaxEnt implementation requires binary models from OpenNLP project on SourceForge.

Constructor Summary

Constructors

Constructor	Description
NLPLemmatizerOp(InputStream dictionary, opennlp.tools.lemmatizer.LemmatizerModel lemmatizerModel)

Method Summary

Modifier and Type	Method	Description
String[]	lemmatize(String[] words, String[] postags)

Methods inherited from class java.lang.Object

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

Constructor Detail

NLPLemmatizerOp

public NLPLemmatizerOp(InputStream dictionary,
                       opennlp.tools.lemmatizer.LemmatizerModel lemmatizerModel)
                throws IOException

Throws:

IOException

Method Detail

lemmatize

public String[] lemmatize(String[] words,
                          String[] postags)