Package opennlp.tools.langdetect

Class DefaultLanguageDetectorContextGenerator

java.lang.Object

opennlp.tools.langdetect.DefaultLanguageDetectorContextGenerator

All Implemented Interfaces:

Serializable, LanguageDetectorContextGenerator

public class DefaultLanguageDetectorContextGenerator
extends Object
implements LanguageDetectorContextGenerator

A context generator for language detector.

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
DefaultLanguageDetectorContextGenerator(int minLength, int maxLength, CharSequenceNormalizer... normalizers)	Creates a customizable DefaultLanguageDetectorContextGenerator that computes ngrams from text.

Method Summary

Modifier and Type	Method	Description
<T extends CharSequence> T[]	getContext(CharSequence document)	Retrieves the contexts for a document using character ngrams.

Methods inherited from class java.lang.Object

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

Constructor Details

DefaultLanguageDetectorContextGenerator

public DefaultLanguageDetectorContextGenerator(int minLength,
 int maxLength,
 CharSequenceNormalizer... normalizers)

Creates a customizable DefaultLanguageDetectorContextGenerator that computes ngrams from text.

Parameters:

minLength - The min number of ngrams characters. Must be greater than 0.

maxLength - The max number of ngrams characters. Must be greater than 0 and must be greater than minLength.

normalizers - Zero or more normalizers to be applied in to the text before extracting ngrams.

Method Details

getContext

public <T extends CharSequence> T[] getContext(CharSequence document)

Description copied from interface: LanguageDetectorContextGenerator

Retrieves the contexts for a document using character ngrams.

Specified by:

getContext in interface LanguageDetectorContextGenerator

Parameters:

document - The textual input used to extract context from.

Returns:

An array of contexts on which a model basis its decisions.