dragon.nlp.extract
Class AbstractTermExtractor

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

All Implemented Interfaces:

ConceptExtractor, TermExtractor

Direct Known Subclasses:

BasicTermExtractor

public abstract class AbstractTermExtractor

extends AbstractConceptExtractor

implements TermExtractor

Abstract class for UMLS term (CUI) extraction

Copyright: Copyright (c) 2005

Company: IST, Drexel University

Version:

1.0

Author:

Davis Zhou

Field Summary

protected Abbreviation	abbrChecker
protected boolean	abbreviation_enabled
protected AttributeChecker	attrChecker
protected boolean	attributeCheck_enabled
protected boolean	compoundTermPredict_enabled
protected CompoundTermFinder	compTermFinder
protected boolean	coordinatingCheck_enabled
protected boolean	coordinatingTermPredict_enabled
protected Lemmatiser	lemmatiser
protected Ontology	ontology
protected CoordinatingChecker	paraChecker
protected boolean	semanticCheck_enabled
protected Tagger	tagger

Fields inherited from class dragon.nlp.extract.AbstractConceptExtractor

cf, conceptFilter_enabled, conceptList, parser, subconcept_enabled

Constructor Summary

AbstractTermExtractor(Ontology ontology, Tagger tagger, Lemmatiser lemmatiser)

Method Summary

boolean	enableAttributeCheckOption(AttributeChecker checker)
boolean	enableCompoundTermPredictOption(java.lang.String suffixList) Enable the option compound term prediction.
void	extractTermFromFile(java.lang.String filename)
protected java.util.ArrayList	filter(java.util.ArrayList termList)
boolean	getAbbreviationOption() Gets the option of checking terms in abbreviation.
boolean	getAttributeCheckOption()
boolean	getCompoundTermPredictOption() Gets the option of predicting compound terms.
boolean	getCoordinatingCheckOption() Gets the option of checking the coordinating terms
boolean	getCoordinatingTermPredictOption() Gets the option of predicting terms according to coordinating relationship.
Lemmatiser	getLemmatiser() Gets the lemmtiser used for this extractor.
Ontology	getOntology() Gets the ontology used for the term extractor.
Tagger	getPOSTagger() Gets the part of speech tagger used for the term extractor
boolean	getSemanticCheckOption() Gets the option of checking the semantic type of the extracted term
void	initDocExtraction() It is required to call this method before one calls extractFromDoc method.
boolean	isExtractionMerged()
void	print(java.io.PrintWriter out, java.util.ArrayList list) Print out the given list of concepts to the speficid print writer.
void	setAbbreviationOption(boolean option) Sets the option of checking terms in abbreviation.
void	setAttributeCheckOption(boolean option)
void	setCompoundTermPredictOption(boolean option) Sets the option of predicting compound terms.
void	setCoordinatingCheckOption(boolean option) Set the option of checking the coordinating terms
void	setCoordinatingTermPredictOption(boolean option) Sets the option of predicting terms according to coordinating relationship.
void	setLemmatiser(Lemmatiser lemmatiser) Sets lemmatiser for this extractor.
void	setSemanticCheckOption(boolean option) Sets the option of checking the semantic type of the extracted term
void	setSubConceptOption(boolean option)
boolean	supportConceptEntry() Tests if the extracted concept has an entry ID.
boolean	supportConceptName() Tests if the extracted concept has a name.

Methods inherited from class dragon.nlp.extract.AbstractConceptExtractor

extractFromDoc, extractFromDoc, getConceptFilter, getConceptList, getDocumentParser, getFilteringOption, getSubConceptOption, mergeConceptByEntryID, mergeConceptByName, print, setConceptFilter, setDocumentParser, setFilteringOption

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

extractFromDoc, extractFromDoc, extractFromSentence, getConceptFilter, getConceptList, getDocumentParser, getFilteringOption, getSubConceptOption, mergeConceptByEntryID, mergeConceptByName, print, setConceptFilter, setDocumentParser, setFilteringOption

Field Detail

ontology

protected Ontology ontology

tagger

protected Tagger tagger

lemmatiser

protected Lemmatiser lemmatiser

semanticCheck_enabled

protected boolean semanticCheck_enabled

coordinatingTermPredict_enabled

protected boolean coordinatingTermPredict_enabled

compoundTermPredict_enabled

protected boolean compoundTermPredict_enabled

attributeCheck_enabled

protected boolean attributeCheck_enabled

coordinatingCheck_enabled

protected boolean coordinatingCheck_enabled

abbreviation_enabled

protected boolean abbreviation_enabled

attrChecker

protected AttributeChecker attrChecker

paraChecker

protected CoordinatingChecker paraChecker

abbrChecker

protected Abbreviation abbrChecker

compTermFinder

protected CompoundTermFinder compTermFinder

Constructor Detail

AbstractTermExtractor

public AbstractTermExtractor(Ontology ontology,
                             Tagger tagger,
                             Lemmatiser lemmatiser)

Method Detail

isExtractionMerged

public boolean isExtractionMerged()

supportConceptName

public boolean supportConceptName()

Description copied from interface: ConceptExtractor

Tests if the extracted concept has a name.

Specified by:

supportConceptName in interface ConceptExtractor

Returns:

true or false

supportConceptEntry

public boolean supportConceptEntry()

Description copied from interface: ConceptExtractor

Tests if the extracted concept has an entry ID.

Specified by:

supportConceptEntry in interface ConceptExtractor

Returns:

true or false

getOntology

public Ontology getOntology()

Description copied from interface: TermExtractor

Gets the ontology used for the term extractor.

Specified by:

getOntology in interface TermExtractor

Returns:

the ontology used

getPOSTagger

public Tagger getPOSTagger()

Description copied from interface: TermExtractor

Gets the part of speech tagger used for the term extractor

Specified by:

getPOSTagger in interface TermExtractor

Returns:

the part of speech tagger used

getLemmatiser

public Lemmatiser getLemmatiser()

Description copied from interface: ConceptExtractor

Gets the lemmtiser used for this extractor.

Specified by:

getLemmatiser in interface ConceptExtractor

Returns:

the lemmatiser used

setLemmatiser

public void setLemmatiser(Lemmatiser lemmatiser)

Description copied from interface: ConceptExtractor

Sets lemmatiser for this extractor.

Specified by:

setLemmatiser in interface ConceptExtractor

Parameters:

lemmatiser - the lemmatiser

setSubConceptOption

public void setSubConceptOption(boolean option)

Specified by:

setSubConceptOption in interface ConceptExtractor

Overrides:

setSubConceptOption in class AbstractConceptExtractor

setCoordinatingCheckOption

public void setCoordinatingCheckOption(boolean option)

Description copied from interface: TermExtractor

Set the option of checking the coordinating terms

Specified by:

setCoordinatingCheckOption in interface TermExtractor

Parameters:

option - the option of checking the coordinating terms

getCoordinatingCheckOption

public boolean getCoordinatingCheckOption()

Description copied from interface: TermExtractor

Gets the option of checking the coordinating terms

Specified by:

getCoordinatingCheckOption in interface TermExtractor

Returns:

true if the extractor checks the coordinating terms

setAbbreviationOption

public void setAbbreviationOption(boolean option)

Description copied from interface: TermExtractor

Sets the option of checking terms in abbreviation.

Specified by:

setAbbreviationOption in interface TermExtractor

Parameters:

option - the option of checking terms in abbreviation.

getAbbreviationOption

public boolean getAbbreviationOption()

Description copied from interface: TermExtractor

Gets the option of checking terms in abbreviation.

Specified by:

getAbbreviationOption in interface TermExtractor

Returns:

true if the extractor checks terms in abbreviation.

setAttributeCheckOption

public void setAttributeCheckOption(boolean option)

Specified by:

setAttributeCheckOption in interface TermExtractor

getAttributeCheckOption

public boolean getAttributeCheckOption()

Specified by:

getAttributeCheckOption in interface TermExtractor

enableAttributeCheckOption

public boolean enableAttributeCheckOption(AttributeChecker checker)

Specified by:

enableAttributeCheckOption in interface TermExtractor

getSemanticCheckOption

public boolean getSemanticCheckOption()

Description copied from interface: TermExtractor

Gets the option of checking the semantic type of the extracted term

Specified by:

getSemanticCheckOption in interface TermExtractor

Returns:

true if the extractor checks the semantic type of the term

setSemanticCheckOption

public void setSemanticCheckOption(boolean option)

Description copied from interface: TermExtractor

Sets the option of checking the semantic type of the extracted term

Specified by:

setSemanticCheckOption in interface TermExtractor

Parameters:

option - the option of checking the semantic type of the extracted term

getCoordinatingTermPredictOption

public boolean getCoordinatingTermPredictOption()

Description copied from interface: TermExtractor

Gets the option of predicting terms according to coordinating relationship. Predicated terms have no entry id.

Specified by:

getCoordinatingTermPredictOption in interface TermExtractor

Returns:

true if the extractor predicts terms according to coordinating relationship.

setCoordinatingTermPredictOption

public void setCoordinatingTermPredictOption(boolean option)

Description copied from interface: TermExtractor

Sets the option of predicting terms according to coordinating relationship.

Specified by:

setCoordinatingTermPredictOption in interface TermExtractor

Parameters:

option - the option of predicting terms according to coordinating relationship.

getCompoundTermPredictOption

public boolean getCompoundTermPredictOption()

Description copied from interface: TermExtractor

Gets the option of predicting compound terms. Predicted terms have no entry id. Componenets of predicted compound terms will be removed from the extracted term list.

Specified by:

getCompoundTermPredictOption in interface TermExtractor

Returns:

true if the extractor predicts compound terms

setCompoundTermPredictOption

public void setCompoundTermPredictOption(boolean option)

Description copied from interface: TermExtractor

Sets the option of predicting compound terms.

Specified by:

setCompoundTermPredictOption in interface TermExtractor

Parameters:

option - the option of predicting compound terms.

enableCompoundTermPredictOption

public boolean enableCompoundTermPredictOption(java.lang.String suffixList)

Description copied from interface: TermExtractor

Enable the option compound term prediction.

Specified by:

enableCompoundTermPredictOption in interface TermExtractor

Parameters:

suffixList - the name of the file containing a list of suffix for compound terms

Returns:

true if no error occurs

initDocExtraction

public void initDocExtraction()

Description copied from interface: ConceptExtractor

It is required to call this method before one calls extractFromDoc method.

Specified by:

initDocExtraction in interface ConceptExtractor

print

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

Description copied from interface: ConceptExtractor

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

Specified by:

print in interface ConceptExtractor

Overrides:

print in class AbstractConceptExtractor

Parameters:

out - the print writer

list - a list concepts for output

extractTermFromFile

public void extractTermFromFile(java.lang.String filename)

filter

protected java.util.ArrayList filter(java.util.ArrayList termList)