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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.

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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]

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

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Member Function Documentation

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

p(w|d), w seen. Reimplemented from SimpleKLDocModel.

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

a(d). Reimplemented from SimpleKLDocModel.

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

• SimpleKLDocModel.hpp

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