Package com.gengoai.hermes.extraction.keyword

Class NPClusteringKeywordExtractor

java.lang.Object

com.gengoai.hermes.extraction.keyword.NPClusteringKeywordExtractor

All Implemented Interfaces:

Extractor, KeywordExtractor, Serializable

public class NPClusteringKeywordExtractor
extends Object
implements KeywordExtractor

Implementation of the NP Clustering Keyword Extractor presented in:

   Bracewell, David B., Yan, Jiajun, and Ren, Fuji, (2008), Single Document Keyword Extraction For Internet News
 Articles, International Journal of Innovative Computing, Information and Control, 4, 905—913
 

Author:

David B. Bracewell

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor	Description
NPClusteringKeywordExtractor()

Method Summary

Modifier and Type	Method	Description
Extraction	extract(@NonNull HString source)	Generate an Extraction from the given HString.
void	fit(DocumentCollection corpus)	In certain cases a keyword extractor needs to collect corpus level statistics or construct a model of what a good keyword looks like.

Methods inherited from class java.lang.Object

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

Constructor Detail

NPClusteringKeywordExtractor

public NPClusteringKeywordExtractor()

Method Detail

extract

public Extraction extract(@NonNull
                          @NonNull HString source)

Description copied from interface: Extractor

Generate an Extraction from the given HString.

Specified by:

extract in interface Extractor

Parameters:

source - the source text from which we will generate an Extraction

Returns:

the Extraction

fit

public void fit(DocumentCollection corpus)

Description copied from interface: KeywordExtractor

In certain cases a keyword extractor needs to collect corpus level statistics or construct a model of what a good keyword looks like. The fit method allows implementations to perform this logic at a corpus level.

Specified by:

fit in interface KeywordExtractor

Parameters:

corpus - the corpus to fit the extractor to