dragon.ir.kngbase

Class HALSpace

java.lang.Object

dragon.ir.kngbase.HALSpace

All Implemented Interfaces:

KnowledgeBase

public class HALSpace
extends Object
implements KnowledgeBase

Hyper Analogue to Language Space

Copyright: Copyright (c) 2005

Company: IST, Drexel University

Version:

1.0

Author:

Davis Zhou

Constructor Summary

Constructors

Constructor and Description
HALSpace(SimpleElementList termList, TokenExtractor te, int windowSize)
HALSpace(SimpleElementList termList, TokenExtractor te, int windowSize, String indexFilename, String matrixFilename)
HALSpace(TokenExtractor te, int windowSize)

Method Summary

Modifier and Type	Method and Description
void	add(ArrayList articleList)
void	add(CollectionReader collectionReader)
void	close()
void	finalizeData()
SimpleElementList	getColumnKeyList()
DoubleSparseMatrix	getHALMatrix()
DoubleSparseMatrix	getKnowledgeMatrix() A knowledge matrix saves the semantic relationships between various concepts.
SimpleElementList	getRowKeyList()
void	setShowProgress(boolean option)

Methods inherited from class java.lang.Object

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

Constructor Detail

HALSpace

public HALSpace(TokenExtractor te,
                int windowSize)

HALSpace

public HALSpace(SimpleElementList termList,
                TokenExtractor te,
                int windowSize)

HALSpace

public HALSpace(SimpleElementList termList,
                TokenExtractor te,
                int windowSize,
                String indexFilename,
                String matrixFilename)

Method Detail

getKnowledgeMatrix

public DoubleSparseMatrix getKnowledgeMatrix()

Description copied from interface: KnowledgeBase

A knowledge matrix saves the semantic relationships between various concepts. For example, a row may stand for a multiword phrase, e.g. space program and a column denote a signle word. Thus a cell in the matrix may be interpreted as the probability of the phrase beging translated to the single word semantically.

Specified by:

getKnowledgeMatrix in interface KnowledgeBase

Returns:

the knowledge matrix

getRowKeyList

public SimpleElementList getRowKeyList()

Specified by:

getRowKeyList in interface KnowledgeBase

Returns:

a list of concept names corresponding to each row

getColumnKeyList

public SimpleElementList getColumnKeyList()

Specified by:

getColumnKeyList in interface KnowledgeBase

Returns:

a list of concept names corresponding to each column

setShowProgress

public void setShowProgress(boolean option)

add

public void add(ArrayList articleList)

add

public void add(CollectionReader collectionReader)

finalizeData

public void finalizeData()

getHALMatrix

public DoubleSparseMatrix getHALMatrix()

close

public void close()