dragon.nlp.extract
Class AbstractConceptExtractor

java.lang.Object
  |
  +--dragon.nlp.extract.AbstractConceptExtractor

All Implemented Interfaces:

ConceptExtractor

Direct Known Subclasses:

AbstractPhraseExtractor, AbstractTermExtractor, AbstractTokenExtractor

public abstract class AbstractConceptExtractor

extends java.lang.Object

implements ConceptExtractor

Abstract class for concept extraction which is the super class of AbstractPhraseExtractor, AbstractTermExtractor, AbstractTokenExtrator, and AbstractTripleExtractor

Copyright: Copyright (c) 2005

Company: IST, Drexel University

Version:

1.0

Author:

Davis Zhou

Field Summary

protected ConceptFilter	cf
protected boolean	conceptFilter_enabled
protected java.util.ArrayList	conceptList
protected DocumentParser	parser
protected boolean	subconcept_enabled

Constructor Summary

AbstractConceptExtractor()

Method Summary

java.util.ArrayList	extractFromDoc(Document doc) Extracts concepts from a parsed document
java.util.ArrayList	extractFromDoc(java.lang.String doc) Extracts concepts from a raw document
ConceptFilter	getConceptFilter() Gets the concept filter used for this extractor.
java.util.ArrayList	getConceptList()
DocumentParser	getDocumentParser() Gets document parser.
boolean	getFilteringOption() Tests if the extractor applies concept filtering.
boolean	getSubConceptOption()
SortedArray	mergeConceptByEntryID(java.util.ArrayList termList) The concepts with identical entry id will be merged.
SortedArray	mergeConceptByName(java.util.ArrayList termList) The concepts with identical names will be merged.
void	print(java.io.PrintWriter out) Print out the extract concepts to the speficid print writer.
void	print(java.io.PrintWriter out, java.util.ArrayList conceptList) Print out the given list of concepts to the speficid print writer.
void	setConceptFilter(ConceptFilter cf) Sets the concept filter for the concept extatractor
void	setDocumentParser(DocumentParser parser) Sets the document parser for the concept extractor.
void	setFilteringOption(boolean option) Sets the option of concept filtering
void	setSubConceptOption(boolean option)

Methods inherited from class java.lang.Object

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

Methods inherited from interface dragon.nlp.extract.ConceptExtractor

extractFromSentence, getLemmatiser, initDocExtraction, setLemmatiser, supportConceptEntry, supportConceptName

Field Detail

conceptList

protected java.util.ArrayList conceptList

conceptFilter_enabled

protected boolean conceptFilter_enabled

subconcept_enabled

protected boolean subconcept_enabled

cf

protected ConceptFilter cf

parser

protected DocumentParser parser

Constructor Detail

AbstractConceptExtractor

public AbstractConceptExtractor()

Method Detail

setSubConceptOption

public void setSubConceptOption(boolean option)

Specified by:

setSubConceptOption in interface ConceptExtractor

getSubConceptOption

public boolean getSubConceptOption()

Specified by:

getSubConceptOption in interface ConceptExtractor

getFilteringOption

public boolean getFilteringOption()

Description copied from interface: ConceptExtractor

Tests if the extractor applies concept filtering.

Specified by:

getFilteringOption in interface ConceptExtractor

Returns:

true if the extractor applies concept filtering

setFilteringOption

public void setFilteringOption(boolean option)

Description copied from interface: ConceptExtractor

Sets the option of concept filtering

Specified by:

setFilteringOption in interface ConceptExtractor

Parameters:

option - the option of concept filtering

setConceptFilter

public void setConceptFilter(ConceptFilter cf)

Description copied from interface: ConceptExtractor

Sets the concept filter for the concept extatractor

Specified by:

setConceptFilter in interface ConceptExtractor

Parameters:

cf - the concept filter

getConceptFilter

public ConceptFilter getConceptFilter()

Description copied from interface: ConceptExtractor

Gets the concept filter used for this extractor.

Specified by:

getConceptFilter in interface ConceptExtractor

Returns:

the concept filter used.

getConceptList

public java.util.ArrayList getConceptList()

Specified by:

getConceptList in interface ConceptExtractor

Returns:

a list of extracted concepts

print

public void print(java.io.PrintWriter out)

Description copied from interface: ConceptExtractor

Print out the extract concepts to the speficid print writer.

Specified by:

print in interface ConceptExtractor

Parameters:

out - the print writer

print

public void print(java.io.PrintWriter out,
                  java.util.ArrayList conceptList)

Description copied from interface: ConceptExtractor

Print out the given list of concepts to the speficid print writer.

Specified by:

print in interface ConceptExtractor

Parameters:

out - the print writer

conceptList - a list concepts for output

mergeConceptByEntryID

public SortedArray mergeConceptByEntryID(java.util.ArrayList termList)

Description copied from interface: ConceptExtractor

The concepts with identical entry id will be merged.

Specified by:

mergeConceptByEntryID in interface ConceptExtractor

Parameters:

termList - a list of concepts

Returns:

a list of merged and sorted unique concepts

mergeConceptByName

public SortedArray mergeConceptByName(java.util.ArrayList termList)

Description copied from interface: ConceptExtractor

The concepts with identical names will be merged.

Specified by:

mergeConceptByName in interface ConceptExtractor

Parameters:

termList - a list of concepts

Returns:

a list of merged and sorted unique concepts

extractFromDoc

public java.util.ArrayList extractFromDoc(java.lang.String doc)

Description copied from interface: ConceptExtractor

Extracts concepts from a raw document

Specified by:

extractFromDoc in interface ConceptExtractor

Parameters:

doc - the content of the document

Returns:

a list of extacted concepts

extractFromDoc

public java.util.ArrayList extractFromDoc(Document doc)

Description copied from interface: ConceptExtractor

Extracts concepts from a parsed document

Specified by:

extractFromDoc in interface ConceptExtractor

Parameters:

doc - a parsed document

Returns:

a list of extacted concepts

getDocumentParser

public DocumentParser getDocumentParser()

Description copied from interface: ConceptExtractor

Gets document parser.

Specified by:

getDocumentParser in interface ConceptExtractor

Returns:

the document parser.

setDocumentParser

public void setDocumentParser(DocumentParser parser)

Description copied from interface: ConceptExtractor

Sets the document parser for the concept extractor.

Specified by:

setDocumentParser in interface ConceptExtractor

Parameters:

parser - document parser