dragon.nlp.extract

Interface ConceptExtractor

All Known Subinterfaces:

PhraseExtractor, TermExtractor, TokenExtractor

All Known Implementing Classes:

AbstractConceptExtractor, AbstractPhraseExtractor, AbstractTermExtractor, AbstractTokenExtractor, BasicPhraseExtractor, BasicTermExtractor, BasicTokenExtractor

public interface ConceptExtractor

Interface of Concept Extractors

Copyright: Copyright (c) 2005

Company: IST, Drexel University

Version:

1.0

Author:

Davis Zhou

Method Summary

Modifier and Type	Method and Description
ArrayList	extractFromDoc(Document doc) Extracts concepts from a parsed document
ArrayList	extractFromDoc(String doc) Extracts concepts from a raw document
ArrayList	extractFromSentence(Sentence sent) Extracts concepts from a sentence
ConceptFilter	getConceptFilter() Gets the concept filter used for this extractor.
ArrayList	getConceptList()
DocumentParser	getDocumentParser() Gets document parser.
boolean	getFilteringOption() Tests if the extractor applies concept filtering.
Lemmatiser	getLemmatiser() Gets the lemmtiser used for this extractor.
boolean	getSubConceptOption()
void	initDocExtraction() It is required to call this method before one calls extractFromDoc method.
SortedArray	mergeConceptByEntryID(ArrayList conceptList) The concepts with identical entry id will be merged.
SortedArray	mergeConceptByName(ArrayList conceptList) The concepts with identical names will be merged.
void	print(PrintWriter out) Print out the extract concepts to the speficid print writer.
void	print(PrintWriter out, ArrayList list) 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	setLemmatiser(Lemmatiser lemmatiser) Sets lemmatiser for this extractor.
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.

Method Detail

initDocExtraction

void initDocExtraction()

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

mergeConceptByName

SortedArray mergeConceptByName(ArrayList conceptList)

The concepts with identical names will be merged.

Parameters:

conceptList - a list of concepts

Returns:

a list of merged and sorted unique concepts

mergeConceptByEntryID

SortedArray mergeConceptByEntryID(ArrayList conceptList)

The concepts with identical entry id will be merged.

Parameters:

conceptList - a list of concepts

Returns:

a list of merged and sorted unique concepts

extractFromDoc

ArrayList extractFromDoc(String doc)

Extracts concepts from a raw document

Parameters:

doc - the content of the document

Returns:

a list of extacted concepts

extractFromDoc

ArrayList extractFromDoc(Document doc)

Extracts concepts from a parsed document

Parameters:

doc - a parsed document

Returns:

a list of extacted concepts

extractFromSentence

ArrayList extractFromSentence(Sentence sent)

Extracts concepts from a sentence

Parameters:

sent - the sentence for extraction

Returns:

a list of extracted concepts

getConceptList

ArrayList getConceptList()

Returns:

a list of extracted concepts

supportConceptName

boolean supportConceptName()

Tests if the extracted concept has a name.

Returns:

true or false

supportConceptEntry

boolean supportConceptEntry()

Tests if the extracted concept has an entry ID.

Returns:

true or false

setSubConceptOption

void setSubConceptOption(boolean option)

getSubConceptOption

boolean getSubConceptOption()

getFilteringOption

boolean getFilteringOption()

Tests if the extractor applies concept filtering.

Returns:

true if the extractor applies concept filtering

setFilteringOption

void setFilteringOption(boolean option)

Sets the option of concept filtering

Parameters:

option - the option of concept filtering

setConceptFilter

void setConceptFilter(ConceptFilter cf)

Sets the concept filter for the concept extatractor

Parameters:

cf - the concept filter

getConceptFilter

ConceptFilter getConceptFilter()

Gets the concept filter used for this extractor.

Returns:

the concept filter used.

getLemmatiser

Lemmatiser getLemmatiser()

Gets the lemmtiser used for this extractor.

Returns:

the lemmatiser used

setLemmatiser

void setLemmatiser(Lemmatiser lemmatiser)

Sets lemmatiser for this extractor.

Parameters:

lemmatiser - the lemmatiser

setDocumentParser

void setDocumentParser(DocumentParser parser)

Sets the document parser for the concept extractor.

Parameters:

parser - document parser

getDocumentParser

DocumentParser getDocumentParser()

Gets document parser.

Returns:

the document parser.

print

void print(PrintWriter out)

Print out the extract concepts to the speficid print writer.

Parameters:

out - the print writer

print

void print(PrintWriter out,
           ArrayList list)

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

Parameters:

out - the print writer

list - a list concepts for output