lemur::retrieval::TFIDFRetMethod Class Reference

The TFIDF retrieval method with a few TF formula options. More...

#include <TFIDFRetMethod.hpp>

Inheritance diagram for lemur::retrieval::TFIDFRetMethod:

List of all members.

Public Member Functions
	TFIDFRetMethod (const lemur::api::Index &dbIndex, lemur::api::ScoreAccumulator &accumulator)
virtual	~TFIDFRetMethod ()
virtual lemur::api::TextQueryRep *	computeTextQueryRep (const lemur::api::TermQuery &qry)
virtual lemur::api::DocumentRep *	computeDocRep (lemur::api::DOCID_T docID)
	compute the doc representation (caller responsible for deleting the memory of the generated new instance)
virtual lemur::api::ScoreFunction *	scoreFunc ()
	return the scoring function pointer
virtual void	updateTextQuery (lemur::api::TextQueryRep &qryRep, const lemur::api::DocIDSet &relDocs)
void	setDocTFParam (TFIDFParameter::WeightParam &docTFWeightParam)
void	setQueryTFParam (TFIDFParameter::WeightParam &queryTFWeightParam)
void	setFeedbackParam (TFIDFParameter::FeedbackParam &feedbackParam)
Static Public Member Functions
double	BM25TF (const double rawTF, const double k1, const double b, const double docLen, const double avgDocLen)
Protected Attributes
double *	idfV
lemur::api::ScoreFunction *	scFunc
Parameters
TFIDFParameter::WeightParam	qryTFParam
TFIDFParameter::WeightParam	docTFParam
TFIDFParameter::FeedbackParam	fbParam

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Detailed Description

The TFIDF retrieval method with a few TF formula options.

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Constructor & Destructor Documentation

lemur::retrieval::TFIDFRetMethod::TFIDFRetMethod (  const lemur::api::Index &  dbIndex, lemur::api::ScoreAccumulator &  accumulator )

virtual lemur::retrieval::TFIDFRetMethod::~TFIDFRetMethod (   )  [inline, virtual]

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Member Function Documentation

double lemur::retrieval::TFIDFRetMethod::BM25TF (  const double  rawTF, const double  k1, const double  b, const double  docLen, const double  avgDocLen )  [inline, static]

virtual lemur::api::DocumentRep* lemur::retrieval::TFIDFRetMethod::computeDocRep (  lemur::api::DOCID_T  docID  )  [inline, virtual]

compute the doc representation (caller responsible for deleting the memory of the generated new instance) Implements lemur::api::TextQueryRetMethod.

virtual lemur::api::TextQueryRep* lemur::retrieval::TFIDFRetMethod::computeTextQueryRep (  const lemur::api::TermQuery &  qry  )  [inline, virtual]

virtual lemur::api::ScoreFunction* lemur::retrieval::TFIDFRetMethod::scoreFunc (   )  [inline, virtual]

return the scoring function pointer Implements lemur::api::TextQueryRetMethod.

void lemur::retrieval::TFIDFRetMethod::setDocTFParam (  TFIDFParameter::WeightParam &  docTFWeightParam  )  [inline]

void lemur::retrieval::TFIDFRetMethod::setFeedbackParam (  TFIDFParameter::FeedbackParam &  feedbackParam  )  [inline]

void lemur::retrieval::TFIDFRetMethod::setQueryTFParam (  TFIDFParameter::WeightParam &  queryTFWeightParam  )  [inline]

virtual void lemur::retrieval::TFIDFRetMethod::updateTextQuery (  lemur::api::TextQueryRep &  qryRep, const lemur::api::DocIDSet &  relDocs )  [virtual]

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Member Data Documentation

TFIDFParameter::WeightParam lemur::retrieval::TFIDFRetMethod::docTFParam [protected]

TFIDFParameter::FeedbackParam lemur::retrieval::TFIDFRetMethod::fbParam [protected]

double* lemur::retrieval::TFIDFRetMethod::idfV [protected]

TFIDFParameter::WeightParam lemur::retrieval::TFIDFRetMethod::qryTFParam [protected]

lemur::api::ScoreFunction* lemur::retrieval::TFIDFRetMethod::scFunc [protected]

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

• TFIDFRetMethod.hpp

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