cc.mallet.grmm.inference
Class LoopyBP

java.lang.Object
  cc.mallet.grmm.inference.AbstractInferencer
      cc.mallet.grmm.inference.AbstractBeliefPropagation
          cc.mallet.grmm.inference.LoopyBP

All Implemented Interfaces:

Inferencer, java.io.Serializable, java.lang.Cloneable

public class LoopyBP
extends AbstractBeliefPropagation

The loopy belief propagation algorithm for approximate inference in general graphical models. Created: Wed Nov 5 19:30:15 2003

Version:

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

Author:

Charles Sutton

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class cc.mallet.grmm.inference.AbstractBeliefPropagation

AbstractBeliefPropagation.AbstractMessageStrategy, AbstractBeliefPropagation.MaxProductMessageStrategy, AbstractBeliefPropagation.MessageStrategy, AbstractBeliefPropagation.SumProductMessageStrategy

Field Summary

static int

DEFAULT_MAX_ITER

Fields inherited from class cc.mallet.grmm.inference.AbstractBeliefPropagation

assignedVertexPtls, iterUsed, logger, mdlCurrent, normalizeBeliefs, useCaching

Constructor Summary

LoopyBP()

LoopyBP(AbstractBeliefPropagation.MessageStrategy messager, int maxIter)

LoopyBP(int maxIter)

Method Summary

void	computeMarginals(FactorGraph mdl) Computes marginal distributions for a factor graph.
static Inferencer	createForMaxProduct()
LoopyBP	setRand(java.util.Random rand)
void	setUseCaching(boolean useCaching)

Methods inherited from class cc.mallet.grmm.inference.AbstractBeliefPropagation

copyOldMessages, doneWithGraph, dump, dump, getMessager, getMessagesSent, getMessagesUsedLastTime, getTotalMessagesSent, hasConverged, hasConverged, initForGraph, iterationsUsed, lookupLogJoint, lookupMarginal, lookupMarginal, reportTime, resetMessagesSentAtStart, sendMessage, sendMessage, setMessager

Methods inherited from class cc.mallet.grmm.inference.AbstractInferencer

duplicate, lookupJoint, query

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_MAX_ITER

public static final int DEFAULT_MAX_ITER

See Also:

Constant Field Values

Constructor Detail

LoopyBP

public LoopyBP()

LoopyBP

public LoopyBP(int maxIter)

LoopyBP

public LoopyBP(AbstractBeliefPropagation.MessageStrategy messager,
               int maxIter)

Method Detail

setUseCaching

public void setUseCaching(boolean useCaching)

createForMaxProduct

public static Inferencer createForMaxProduct()

setRand

public LoopyBP setRand(java.util.Random rand)

computeMarginals

public void computeMarginals(FactorGraph mdl)

Description copied from interface: Inferencer

Computes marginal distributions for a factor graph.

Specified by:

computeMarginals in interface Inferencer

Specified by:

computeMarginals in class AbstractInferencer