tuffy.infer
Class InferComponent

java.lang.Object
  tuffy.infer.InferComponent

public class InferComponent
extends java.lang.Object

Performing inference on one MRF component.

Field Summary

private Component	comp
private double	lowCost

Constructor Summary

InferComponent(Component comp)

Method Summary

Component	getComponent()
double	getCost()
private double	inferGaussSeidelMap(int rounds, int ntries, int nflips) Gauss-Seidel MAP inference scheme.
private void	inferGaussSeidelMarginal(int rounds, int nsamples, int nflips) Gauss-Seidel MAP inference scheme.
void	inferMAP(int totalTries, int totalFlipsPerTry) Run partition-aware MAP inference with the Gauss-Seidel scheme.
void	inferMarginal(int totalSamples, int totalFlipsPerSample) Run partition-aware marginal inference with the Gauss-Seidel scheme.
private void	initTruthRandom()
private double	recalcCost() Recalculate the cost on this component, which is the sum of the cost on the MRF of each partition.
private void	restoreLowLowTruth()
private void	saveLowLowTruth()
private void	setMrfInitStrategy(MRF.INIT_STRATEGY strategy)

Methods inherited from class java.lang.Object

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

Field Detail

comp

private Component comp

lowCost

private double lowCost

Constructor Detail

InferComponent

public InferComponent(Component comp)

Method Detail

getCost

public double getCost()

getComponent

public Component getComponent()

inferMAP

public void inferMAP(int totalTries,
                     int totalFlipsPerTry)

Run partition-aware MAP inference with the Gauss-Seidel scheme.

inferMarginal

public void inferMarginal(int totalSamples,
                          int totalFlipsPerSample)

Run partition-aware marginal inference with the Gauss-Seidel scheme.

initTruthRandom

private void initTruthRandom()

setMrfInitStrategy

private void setMrfInitStrategy(MRF.INIT_STRATEGY strategy)

inferGaussSeidelMap

private double inferGaussSeidelMap(int rounds,
                                   int ntries,
                                   int nflips)

Gauss-Seidel MAP inference scheme. Calls WalkSAT on each partition in a round-robin manner.

Parameters:

rounds -

ntries -

nflips - total number of flips per try in one round

inferGaussSeidelMarginal

private void inferGaussSeidelMarginal(int rounds,
                                      int nsamples,
                                      int nflips)

Gauss-Seidel MAP inference scheme. Calls WalkSAT on each partition in a round-robin manner.

Parameters:

rounds -

ntries -

nflips - total number of flips per try in one round

saveLowLowTruth

private void saveLowLowTruth()

restoreLowLowTruth

private void restoreLowLowTruth()

recalcCost

private double recalcCost()

Recalculate the cost on this component, which is the sum of the cost on the MRF of each partition.

See Also:

MRF.recalcCost()