---

MultiRegrMergeMethod Class Reference

#include <MultiRegrMergeMethod.hpp>

Inheritance diagram for MultiRegrMergeMethod:

List of all members.

Public Methods
	MultiRegrMergeMethod (double constA=0.714, double constB=0.2857)
	the default values of constA and constB are the values of CORI merging algorithm
	~MultiRegrMergeMethod ()
void	mergeScoreSet (const IndexedRealVector &indexset, const DocScoreVector *const *scoreset, DocScoreVector &results)
void	calcRegrParams (const IndexedRealVector &indexset, const DocScoreVector *centralscores, const DocScoreVector *const *scoresset)
Protected Methods
virtual double	score (double dbscore, double docscore, int dbIndex) const
	create a score for the merge based on the index ranking score and the document score
virtual double	score (double dbscore, double docscore) const
	create a score for the merge based on the index ranking score and the document score
Protected Attributes
double *	parama
	The model parameters.
double *	paramb
double	defParamA
double	defParamB

---

Constructor & Destructor Documentation

MultiRegrMergeMethod::MultiRegrMergeMethod (  double    constA = 0.714, double    constB = 0.2857 )

the default values of constA and constB are the values of CORI merging algorithm

MultiRegrMergeMethod::~MultiRegrMergeMethod (    )

---

Member Function Documentation

void MultiRegrMergeMethod::calcRegrParams (  const IndexedRealVector &    indexset, const DocScoreVector *    centralscores, const DocScoreVector *const *    scoresset )

calculate the a regression model for each of the databases indexset are the database scores for selected databases centralsocres are the central documents scores retrieved by centralized sampling database scoresset are the distributed documents scores retrieved by individual databases

void MultiRegrMergeMethod::mergeScoreSet (  const IndexedRealVector &    indexset, const DocScoreVector *const *    scoreset, DocScoreVector &    results )  [virtual]

calculate the single regression model for all the databases indexset are the database scores for selected databases centralsocres are the central documents scores retrieved by centralized sampling database scoresset are the distributed documents scores retrieved by individual databases Reimplemented from DistMergeMethod.

double MultiRegrMergeMethod::score (  double    dbscore, double    docscore )  const [protected, virtual]

create a score for the merge based on the index ranking score and the document score Implements DistMergeMethod.

double MultiRegrMergeMethod::score (  double    dbscore, double    docscore, int    dbIndex )  const [protected, virtual]

create a score for the merge based on the index ranking score and the document score

---

Member Data Documentation

double MultiRegrMergeMethod::defParamA [protected]

double MultiRegrMergeMethod::defParamB [protected]

double* MultiRegrMergeMethod::parama [protected]

The model parameters.

double* MultiRegrMergeMethod::paramb [protected]

---

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

• MultiRegrMergeMethod.hpp
• MultiRegrMergeMethod.cpp

---