indri::query::QueryExpander Class Reference

#include <QueryExpander.hpp>

Inheritance diagram for indri::query::QueryExpander:

List of all members.

Public Member Functions
	QueryExpander (indri::api::QueryEnvironment *env, indri::api::Parameters &param)
virtual	~QueryExpander ()
std::vector< indri::api::ScoredExtentResult >	runExpandedQuery (std::string originalQuery, int resultsRequested, bool verbose=false)
virtual std::string	expand (std::string originalQuery, std::vector< indri::api::ScoredExtentResult > &results)=0
Protected Member Functions
std::vector< indri::api::DocumentVector * >	getDocumentVectors (std::vector< indri::api::ScoredExtentResult > &results, int rmDocs)
std::vector< std::string > *	getVocabulary (std::vector< indri::api::ScoredExtentResult > &results, int rmDocs)
std::vector< std::string > *	getVocabulary (std::vector< indri::api::DocumentVector * > &docVectors)
std::string	buildQuery (const std::string &originalQuery, double originalWeight, const std::vector< std::pair< std::string, double > > &expansionTerms, int termCount)
UINT64	getCF (const std::string &term)
Protected Attributes
indri::api::QueryEnvironment *	_env
indri::api::Parameters	_param
std::map< std::string, bool >	_stopwords
Private Attributes
std::map< std::string, UINT64 >	_cf_cache

---

Constructor & Destructor Documentation

indri::query::QueryExpander::QueryExpander (  indri::api::QueryEnvironment *  env, indri::api::Parameters &  param )

virtual indri::query::QueryExpander::~QueryExpander (   )  [inline, virtual]

---

Member Function Documentation

std::string indri::query::QueryExpander::buildQuery (  const std::string &  originalQuery, double  originalWeight, const std::vector< std::pair< std::string, double > > &  expansionTerms, int  termCount )  [protected]

virtual std::string indri::query::QueryExpander::expand (  std::string  originalQuery, std::vector< indri::api::ScoredExtentResult > &  results )  [pure virtual]

Implemented in indri::query::PonteExpander, indri::query::RMExpander, and indri::query::TFIDFExpander.

UINT64 indri::query::QueryExpander::getCF (  const std::string &  term  )  [protected]

std::vector< indri::api::DocumentVector * > indri::query::QueryExpander::getDocumentVectors (  std::vector< indri::api::ScoredExtentResult > &  results, int  rmDocs )  [protected]

std::vector< std::string > * indri::query::QueryExpander::getVocabulary (  std::vector< indri::api::DocumentVector * > &  docVectors  )  [protected]

std::vector< std::string > * indri::query::QueryExpander::getVocabulary (  std::vector< indri::api::ScoredExtentResult > &  results, int  rmDocs )  [protected]

std::vector< indri::api::ScoredExtentResult > indri::query::QueryExpander::runExpandedQuery (  std::string  originalQuery, int  resultsRequested, bool  verbose = false )

---

Member Data Documentation

std::map<std::string, UINT64> indri::query::QueryExpander::_cf_cache [private]

indri::api::QueryEnvironment* indri::query::QueryExpander::_env [protected]

indri::api::Parameters indri::query::QueryExpander::_param [protected]

std::map< std::string, bool > indri::query::QueryExpander::_stopwords [protected]

---

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

• QueryExpander.hpp
• QueryExpander.cpp

---