---

InQueryRetMethod Class Reference

#include <InQueryRetMethod.hpp>

Inheritance diagram for InQueryRetMethod:

List of all members.

Public Methods
	InQueryRetMethod (Index &dbIndex, double belief, int fbTerms, double fbCoef, bool cacheIDF)
virtual	~InQueryRetMethod ()
virtual StructQueryRep *	computeStructQueryRep (StructQuery &qry)
	compute the query representation for a text query
virtual DocumentRep *	computeDocRep (int docID)
virtual ScoreFunction *	scoreFunc ()
	return the scoring function pointer
virtual void	updateStructQuery (StructQueryRep &qryRep, DocIDSet &relDocs)
Private Attributes
double *	idfV
ScoreFunction *	scFunc
double	fbCoeff
int	fbTermCount
double	defaultBelief
int	docCount
double	docLengthAverage

---

Detailed Description

The InQuery retrieval method for structured queries. Implements the InQuery formulation of idf weighting and default belief value. Behavior can be modified by adjusting that value using the defaultBelief parameter. Provides feedback support in the same fashion as the LEMUR TFIDF method.

---

Constructor & Destructor Documentation

InQueryRetMethod::InQueryRetMethod (  Index &    dbIndex, double    belief, int    fbTerms, double    fbCoef, bool    cacheIDF )

virtual InQueryRetMethod::~InQueryRetMethod (    )  [inline, virtual]

---

Member Function Documentation

virtual DocumentRep* InQueryRetMethod::computeDocRep (  int    docID )  [inline, virtual]

compute the doc representation (caller responsible for deleting the memory of the generated new instance) Implements StructQueryRetMethod.

virtual StructQueryRep* InQueryRetMethod::computeStructQueryRep (  StructQuery &    qry )  [inline, virtual]

compute the query representation for a text query Implements StructQueryRetMethod.

virtual ScoreFunction* InQueryRetMethod::scoreFunc (    )  [inline, virtual]

return the scoring function pointer Implements StructQueryRetMethod.

void InQueryRetMethod::updateStructQuery (  StructQueryRep &    qryRep, DocIDSet &    relDocs )  [virtual]

Create new structured query that is a weighted sum of the original query and the terms selected. Implements StructQueryRetMethod.

---

Member Data Documentation

double InQueryRetMethod::defaultBelief [private]

int InQueryRetMethod::docCount [private]

double InQueryRetMethod::docLengthAverage [private]

double InQueryRetMethod::fbCoeff [private]

int InQueryRetMethod::fbTermCount [private]

double* InQueryRetMethod::idfV [private]

ScoreFunction* InQueryRetMethod::scFunc [private]

---

The documentation for this class was generated from the following files:

• InQueryRetMethod.hpp
• InQueryRetMethod.cpp

---