dragon.ir.search.expand
Class AbstractQE

java.lang.Object
  |
  +--dragon.ir.search.expand.AbstractQE

Direct Known Subclasses:

InformationFlowQE

public class AbstractQE

extends java.lang.Object

Abstract Query Expansion

Copyright: Copyright (c) 2005

Company: IST, Drexel University

Version:

1.0

Author:

Davis Zhou

Field Summary

(package private) IndexReader

indexReader

Constructor Summary

AbstractQE(IndexReader indexReader)

Method Summary

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

Field Detail

indexReader

IndexReader indexReader

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)