cc.mallet.grmm.inference
Class ExactSampler

java.lang.Object
  cc.mallet.grmm.inference.ExactSampler

All Implemented Interfaces:

Sampler

public class ExactSampler
extends java.lang.Object
implements Sampler

Computes an exact sample from the distribution of a given factor graph by forming a junction tree. Created: Nov 9, 2005

Version:

$Id: ExactSampler.java,v 1.1 2007/10/22 21:37:49 mccallum Exp $

Author:

Constructor Summary

ExactSampler()

ExactSampler(Randoms r)

Method Summary

Assignment	sample(FactorGraph mdl, int N) Samples from the distribution of a given undirected model.
void	setRandom(Randoms r) Sets the random seed used by this sampler.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ExactSampler

public ExactSampler()

ExactSampler

public ExactSampler(Randoms r)

Method Detail

sample

public Assignment sample(FactorGraph mdl,
                         int N)

Description copied from interface: Sampler

Samples from the distribution of a given undirected model.

Specified by:

sample in interface Sampler

Parameters:

mdl - Model to sample from

N - Number of samples to generate

Returns:

A list of assignments to the model.

setRandom

public void setRandom(Randoms r)

Description copied from interface: Sampler

Sets the random seed used by this sampler.

Specified by:

setRandom in interface Sampler

Parameters:

r - Random object to be used by this sampler.