public class NGramFeatureGenerator extends Object implements FeatureGenerator
FeatureGenerator| Constructor and Description |
|---|
NGramFeatureGenerator()
Default constructor for Bi grams
|
NGramFeatureGenerator(int minGram,
int maxGram)
Constructor for ngrams.
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| Modifier and Type | Method and Description |
|---|---|
Collection<String> |
extractFeatures(String[] text,
Map<String,Object> extraInfo)
Extract ngram features from given text fragments
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public NGramFeatureGenerator(int minGram,
int maxGram)
throws InvalidFormatException
minGram - minGram value - which means minimum words in ngram featuresmaxGram - maxGram value - which means maximum words in ngram featuresInvalidFormatExceptionpublic NGramFeatureGenerator()
public Collection<String> extractFeatures(String[] text, Map<String,Object> extraInfo)
extractFeatures in interface FeatureGeneratortext - the text fragments to extract features fromextraInfo - optional extra informationCopyright © 2017 The Apache Software Foundation. All rights reserved.