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(opennlp.tools.lemmatizer.DictionaryLemmatizer dictionaryLemmatizer, 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 Details

### NLPLemmatizerOp

public NLPLemmatizerOp(opennlp.tools.lemmatizer.DictionaryLemmatizer dictionaryLemmatizer, opennlp.tools.lemmatizer.LemmatizerModel lemmatizerModel) throws IOException

Throws:
  `IOException`

## Method Details

### lemmatize

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