dragon.ir.search.expand

Class AbstractQE

java.lang.Object

dragon.ir.search.expand.AbstractQE

Direct Known Subclasses:

InformationFlowQE

public class AbstractQE
extends Object

Abstract Query Expansion

Copyright: Copyright (c) 2005

Company: IST, Drexel University

Version:

1.0

Author:

Davis Zhou

Constructor Summary

Constructors

Constructor and Description
AbstractQE(IndexReader indexReader)

Method Summary

Modifier and Type	Method and Description
protected IRQuery	buildQuery(SimpleTermPredicate[] oldQuery, SimpleTermPredicate[] newQuery, double expandCoeffi)
protected SimpleTermPredicate	buildSimpleTermPredicate(int termIndex, double queryWeight)
protected SimpleTermPredicate[]	checkSimpleTermQuery(RelSimpleQuery query)

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractQE

public AbstractQE(IndexReader indexReader)

Method Detail

checkSimpleTermQuery

protected SimpleTermPredicate[] checkSimpleTermQuery(RelSimpleQuery query)

buildSimpleTermPredicate

protected SimpleTermPredicate buildSimpleTermPredicate(int termIndex,
                                                       double queryWeight)

buildQuery

protected IRQuery buildQuery(SimpleTermPredicate[] oldQuery,
                             SimpleTermPredicate[] newQuery,
                             double expandCoeffi)