public class NGramFeatureGenerator extends Object implements FeatureGenerator
FeatureGenerator
Constructor and Description |
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NGramFeatureGenerator()
Default constructor for Bi grams
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NGramFeatureGenerator(int minGram,
int maxGram)
Constructor for ngrams.
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Modifier and Type | Method and Description |
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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 featuresInvalidFormatException
public NGramFeatureGenerator() throws InvalidFormatException
InvalidFormatException
public Collection<String> extractFeatures(String[] text, Map<String,Object> extraInfo)
extractFeatures
in interface FeatureGenerator
text
- the text fragments to extract features fromextraInfo
- optional extra informationCopyright © 2020 The Apache Software Foundation. All rights reserved.