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InQueryRetMethod Class Reference

#include <InQueryRetMethod.hpp>

Inheritance diagram for InQueryRetMethod:

StructQueryRetMethod RetrievalMethod List of all members.

Public Methods

 InQueryRetMethod (const Index &dbIndex, double belief, int fbTerms, double fbCoef, bool cacheIDF)
virtual ~InQueryRetMethod ()
virtual StructQueryRep * computeStructQueryRep (const TermQuery &qry)
 compute the query representation for a text query

virtual DocumentRep * computeDocRep (DOCID_T docID)
virtual ScoreFunction * scoreFunc ()
 return the scoring function pointer

virtual void updateStructQuery (StructQueryRep &qryRep, const DocIDSet &relDocs)

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

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

Member Function Documentation

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

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

Implements StructQueryRetMethod.

virtual StructQueryRep* InQueryRetMethod::computeStructQueryRep (  const TermQuery &    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,
const DocIDSet &    relDocs
)  [virtual]
 

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

Implements StructQueryRetMethod.

The documentation for this class was generated from the following files:
Generated on Wed Nov 3 12:59:40 2004 for Lemur Toolkit by doxygen1.2.18