org.maochen.nlp.app.chunker

Class ChunkerFeatureExtractor

java.lang.Object

org.maochen.nlp.app.chunker.ChunkerFeatureExtractor

All Implemented Interfaces:

IFeatureExtractor

public class ChunkerFeatureExtractor
extends Object
implements IFeatureExtractor

Chunking with Maximum Entropy Models. http://www.cnts.ua.ac.be/conll2000/pdf/13941koe.pdf

Created by Maochen on 11/10/15.

Field Summary

Fields

Modifier and Type	Field and Description
static int	POS_INDEX
static int	WORD_INDEX

Constructor Summary

Constructors

Constructor and Description
ChunkerFeatureExtractor()

Method Summary

Modifier and Type	Method and Description
List<org.maochen.nlp.ml.Tuple>	extractFeat(org.maochen.nlp.ml.SequenceTuple entry) Single SequenceTuple featExtractor
List<String>	extractFeatSingle(int i, String[] tokens, String[] pos)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.maochen.nlp.app.featextractor.IFeatureExtractor

addFeat

Field Detail

WORD_INDEX

public static final int WORD_INDEX

See Also:

Constant Field Values

POS_INDEX

public static final int POS_INDEX

See Also:

Constant Field Values

Constructor Detail

ChunkerFeatureExtractor

public ChunkerFeatureExtractor()

Method Detail

extractFeatSingle

public List<String> extractFeatSingle(int i,
                                      String[] tokens,
                                      String[] pos)

extractFeat

public List<org.maochen.nlp.ml.Tuple> extractFeat(org.maochen.nlp.ml.SequenceTuple entry)

Single SequenceTuple featExtractor

Specified by:

extractFeat in interface IFeatureExtractor