dragon.ir.index

Class OnlineIndexer

java.lang.Object

dragon.ir.index.AbstractIndexer

dragon.ir.index.OnlineIndexer

All Implemented Interfaces:

Indexer

public class OnlineIndexer
extends AbstractIndexer

The class is designed for indexing in computer memory especially for small document set when writing to disk is not necessary.

Copyright: Copyright (c) 2005

Company: IST, Drexel University

Version:

1.0

Author:

Davis Zhou

Field Summary

Fields inherited from class dragon.ir.index.AbstractIndexer

arrSections, enable_AllSection, initialized, relationSupported

Constructor Summary

Constructors

Constructor and Description
OnlineIndexer(ConceptExtractor ce, boolean useConcept)
OnlineIndexer(TripleExtractor te, boolean useConcept)

Method Summary

Modifier and Type	Method and Description
void	close() This method releases occupied resources.
protected boolean	extract(String content, ArrayList conceptList)
protected boolean	extract(String content, ArrayList conceptList, ArrayList relationList)
IRDocIndexList	getDocIndexList()
SimpleElementList	getDocKeyList()
IntSparseMatrix	getDocRelationMatrix()
IntSparseMatrix	getDocTermMatrix()
IRCollection	getIRCollection()
IRRelationIndexList	getRelationIndexList()
SimplePairList	getRelationKeyList()
protected String	getRemainingSections(Article paper)
IRTermIndexList	getTermIndexList()
SimpleElementList	getTermKeyList()
boolean	indexed(String docKey)
protected void	initDocIndexing()
protected void	initIndex()
protected void	initSectionWrite(IRSection section)
boolean	isRelationSupported()
boolean	screenArticleContent(boolean useTitle, boolean useAbstract, boolean useBody, boolean useMeta)
protected boolean	setDoc(String docKey)
void	setMinArticleSize(int minSize)
protected void	write(int sectionID, ArrayList conceptList)
protected void	write(int sectionID, ArrayList conceptList, ArrayList relationList)

Methods inherited from class dragon.ir.index.AbstractIndexer

addSection, getSection, index, initialize, setLog, writeLog

Methods inherited from class java.lang.Object

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

Constructor Detail

OnlineIndexer

public OnlineIndexer(TripleExtractor te,
                     boolean useConcept)

OnlineIndexer

public OnlineIndexer(ConceptExtractor ce,
                     boolean useConcept)

Method Detail

close

public void close()

Description copied from interface: Indexer

This method releases occupied resources.

isRelationSupported

public boolean isRelationSupported()

indexed

public boolean indexed(String docKey)

Parameters:

docKey - the unique document entry number

Returns:

true if this document has been indexed

setMinArticleSize

public void setMinArticleSize(int minSize)

screenArticleContent

public boolean screenArticleContent(boolean useTitle,
                                    boolean useAbstract,
                                    boolean useBody,
                                    boolean useMeta)

getTermIndexList

public IRTermIndexList getTermIndexList()

getRelationIndexList

public IRRelationIndexList getRelationIndexList()

getDocIndexList

public IRDocIndexList getDocIndexList()

getDocKeyList

public SimpleElementList getDocKeyList()

getTermKeyList

public SimpleElementList getTermKeyList()

getRelationKeyList

public SimplePairList getRelationKeyList()

getDocTermMatrix

public IntSparseMatrix getDocTermMatrix()

getDocRelationMatrix

public IntSparseMatrix getDocRelationMatrix()

getIRCollection

public IRCollection getIRCollection()

initDocIndexing

protected void initDocIndexing()

Specified by:

initDocIndexing in class AbstractIndexer

extract

protected boolean extract(String content,
                          ArrayList conceptList,
                          ArrayList relationList)

Specified by:

extract in class AbstractIndexer

extract

protected boolean extract(String content,
                          ArrayList conceptList)

Specified by:

extract in class AbstractIndexer

getRemainingSections

protected String getRemainingSections(Article paper)

Specified by:

getRemainingSections in class AbstractIndexer

write

protected void write(int sectionID,
                     ArrayList conceptList)

Specified by:

write in class AbstractIndexer

write

protected void write(int sectionID,
                     ArrayList conceptList,
                     ArrayList relationList)

Specified by:

write in class AbstractIndexer

initSectionWrite

protected void initSectionWrite(IRSection section)

Specified by:

initSectionWrite in class AbstractIndexer

initIndex

protected void initIndex()

Specified by:

initIndex in class AbstractIndexer

setDoc

protected boolean setDoc(String docKey)

Specified by:

setDoc in class AbstractIndexer