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AbsoluteDiscountDocModel Class Reference

Absolute discout smoothing. More...

#include <SimpleKLDocModel.hpp>

Inheritance diagram for AbsoluteDiscountDocModel:

List of all members.

Public Methods
	AbsoluteDiscountDocModel (int docID, Index *referenceIndex, UnigramLM &collectLM, double *docProbMass, int *uniqueTermCount, double discount, SimpleKLParameter::SmoothStrategy smthStrategy=SimpleKLParameter::INTERPOLATE)
virtual	~AbsoluteDiscountDocModel ()
virtual double	unseenCoeff ()
	a(d)
virtual double	seenProb (double termFreq, int termID)
	p(w|d), w seen
Private Attributes
Index *	refIndex
double *	collectPr
double *	docPrMass
int *	uniqDocLen
double	delta
SimpleKLParameter::SmoothStrategy	strategy

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Detailed Description

Absolute discout smoothing.

P(w|d) = (termFreq - delta)/|d|+ lambda*Pc(w) if seen or = lambda*Pc(w) if unseen where, lambda = unique-term-count-in-d*delta/|d|

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Constructor & Destructor Documentation

AbsoluteDiscountDocModel::AbsoluteDiscountDocModel (  int    docID, Index *    referenceIndex, UnigramLM &    collectLM, double *    docProbMass, int *    uniqueTermCount, double    discount, SimpleKLParameter::SmoothStrategy    smthStrategy = SimpleKLParameter::INTERPOLATE )  [inline]

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

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Member Function Documentation

virtual double AbsoluteDiscountDocModel::seenProb (  double    termFreq, int    termID )  [inline, virtual]

p(w|d), w seen Implements SimpleKLDocModel.

virtual double AbsoluteDiscountDocModel::unseenCoeff (    )  [inline, virtual]

a(d) Implements SimpleKLDocModel.

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Member Data Documentation

double* AbsoluteDiscountDocModel::collectPr [private]

double AbsoluteDiscountDocModel::delta [private]

double* AbsoluteDiscountDocModel::docPrMass [private]

Index* AbsoluteDiscountDocModel::refIndex [private]

SimpleKLParameter::SmoothStrategy AbsoluteDiscountDocModel::strategy [private]

int* AbsoluteDiscountDocModel::uniqDocLen [private]

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

• SimpleKLDocModel.hpp

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