cc.mallet.grmm.inference
Class SamplingInferencer

java.lang.Object
  cc.mallet.grmm.inference.AbstractInferencer
      cc.mallet.grmm.inference.SamplingInferencer

All Implemented Interfaces:

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

public class SamplingInferencer
extends AbstractInferencer

Approximate inferencer for graphical models using sampling. A general inference engine that takes any Sampler engine, and performs approximate inference using its samples. Created: Mar 28, 2005

Version:

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

Author:

Serialized Form

Constructor Summary

SamplingInferencer(Sampler sampler, int n)

Method Summary

void	computeMarginals(FactorGraph mdl) Computes marginal distributions for a factor graph.
Factor	lookupMarginal(Variable var) Returns the computed marginal of a given variable.
Factor	lookupMarginal(VarSet varSet) Returns the computed marginal of a given clique in a graph.
java.lang.String	toString()

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

dump, duplicate, lookupJoint, lookupLogJoint, query, reportTime

Methods inherited from class java.lang.Object

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

Constructor Detail

SamplingInferencer

public SamplingInferencer(Sampler sampler,
                          int n)

Method Detail

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

lookupMarginal

public Factor lookupMarginal(Variable var)

Description copied from interface: Inferencer

Returns the computed marginal of a given variable. Before using this method, computeMarginals must have been previously called on the graphical model that contains v.

Specified by:

lookupMarginal in interface Inferencer

Specified by:

lookupMarginal in class AbstractInferencer

See Also:

Inferencer.computeMarginals(FactorGraph)

lookupMarginal

public Factor lookupMarginal(VarSet varSet)

Description copied from interface: Inferencer

Returns the computed marginal of a given clique in a graph. Before using this method, computeMarginals must have been previously called on the graphical model that contains the clique.

Specified by:

lookupMarginal in interface Inferencer

Overrides:

lookupMarginal in class AbstractInferencer

See Also:

Inferencer.computeMarginals(cc.mallet.grmm.types.FactorGraph), #computeMarginals(JunctionTree)

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object