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OneStepMarkovChain Class Reference

One step markov chain translation model, not fully tested yet. More...

#include <OneStepMarkovChain.hpp>

List of all members.

Public Methods
	OneStepMarkovChain (WeightedIDSet &docSet, Index &homeIndex, double *wdNorm, double stopProbAlpha)
	construct a MC restricted to a subset of docs
	~OneStepMarkovChain ()
Iteration support
void	startFromWordIteration (int toWord)
	Start iteration over w's for t(toWord |w).
bool	hasMoreFromWord ()
void	nextFromWordProb (int &fromWord, double &prob)
	Fetch the next word and the prob of "translating" it to the toWord.
Private Methods
void	computeFromWordProb (int toWord)
Private Attributes
Index &	ind
double	alpha
int *	dSet
double *	norm
double *	fromWordPr
int	itPos
int	curToWord

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Detailed Description

One step markov chain translation model, not fully tested yet.

This code is included mainly to illustrate how the toolkit can be used for estimating such models.

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Constructor & Destructor Documentation

OneStepMarkovChain::OneStepMarkovChain (  WeightedIDSet &    docSet, Index &    homeIndex, double *    wdNorm, double    stopProbAlpha )

construct a MC restricted to a subset of docs

OneStepMarkovChain::~OneStepMarkovChain (    )

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Member Function Documentation

void OneStepMarkovChain::computeFromWordProb (  int    toWord )  [private]

bool OneStepMarkovChain::hasMoreFromWord (    )  [inline]

void OneStepMarkovChain::nextFromWordProb (  int &    fromWord, double &    prob )

Fetch the next word and the prob of "translating" it to the toWord.

void OneStepMarkovChain::startFromWordIteration (  int    toWord )

Start iteration over w's for t(toWord |w). Given a word, this provides a way to access the translation probability from any word to this word. E.g., given w, each iteration would give us t(w|w1), t(w|w2), ..., t(w|w_n).

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Member Data Documentation

double OneStepMarkovChain::alpha [private]

int OneStepMarkovChain::curToWord [private]

int* OneStepMarkovChain::dSet [private]

double* OneStepMarkovChain::fromWordPr [private]

Index& OneStepMarkovChain::ind [private]

int OneStepMarkovChain::itPos [private]

double* OneStepMarkovChain::norm [private]

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

• OneStepMarkovChain.hpp
• OneStepMarkovChain.cpp

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