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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). More...

bool hasMoreFromWord ()
void nextFromWordProb (int &fromWord,double &prob)
 Fetch the next word and the prob of "translating" it to the toWord.


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.


Constructor & Destructor Documentation

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

construct a MC restricted to a subset of docs.

OneStepMarkovChain::~OneStepMarkovChain ( )
 


Member Function Documentation

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).


The documentation for this class was generated from the following files:
Generated at Fri Jul 26 18:22:54 2002 for LEMUR by doxygen1.2.4 written by Dimitri van Heesch, © 1997-2000