Package opennlp.tools.doccat

Class BagOfWordsFeatureGenerator

java.lang.Object

opennlp.tools.doccat.BagOfWordsFeatureGenerator

All Implemented Interfaces:

FeatureGenerator

public class BagOfWordsFeatureGenerator
extends Object
implements FeatureGenerator

Generates a feature for each word in a document.

Constructor Summary

Constructors

Constructor	Description
BagOfWordsFeatureGenerator()	Instantiates a default BagOfWordsFeatureGenerator instance.

Method Summary

Modifier and Type	Method	Description
Collection<String>	extractFeatures(String[] text, Map<String,Object> extraInformation)	Extracts features from given text fragments.

Methods inherited from class java.lang.Object

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

Constructor Details

BagOfWordsFeatureGenerator

public BagOfWordsFeatureGenerator()

Instantiates a default BagOfWordsFeatureGenerator instance.

Method Details

extractFeatures

public Collection<String> extractFeatures(String[] text,
 Map<String,Object> extraInformation)

Description copied from interface: FeatureGenerator

Extracts features from given text fragments.

Specified by:

extractFeatures in interface FeatureGenerator

Parameters:

text - The text fragments to extract features from

extraInformation - Optional extra information to be used by the FeatureGenerator.

Returns:

A collection of features.