cc.mallet.cluster.iterator
Class PairSampleIterator

java.lang.Object
  cc.mallet.cluster.iterator.NeighborIterator
      cc.mallet.cluster.iterator.PairSampleIterator

All Implemented Interfaces:

java.util.Iterator<Instance>

Direct Known Subclasses:

ClusterSampleIterator

public class PairSampleIterator
extends NeighborIterator

Sample pairs of Instances.

Since:

1.0

Version:

1.0

Author:

"Aron Culotta"

See Also:

NeighborIterator

Field Summary

protected InstanceList	instances
protected int[]	nonsingletonClusters
protected int	numberSamples
protected int	positiveCount
protected double	positiveProportion
protected int	positiveTarget
protected Randoms	random
protected int	totalCount

Fields inherited from class cc.mallet.cluster.iterator.NeighborIterator

clustering

Constructor Summary

PairSampleIterator(Clustering clustering, Randoms random, double positiveProportion, int numberSamples)

Method Summary

boolean	hasNext()
Instance	next()

Methods inherited from class cc.mallet.cluster.iterator.NeighborIterator

getClustering, remove

Methods inherited from class java.lang.Object

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

Field Detail

instances

protected InstanceList instances

random

protected Randoms random

positiveProportion

protected double positiveProportion

numberSamples

protected int numberSamples

positiveTarget

protected int positiveTarget

positiveCount

protected int positiveCount

totalCount

protected int totalCount

nonsingletonClusters

protected int[] nonsingletonClusters

Constructor Detail

PairSampleIterator

public PairSampleIterator(Clustering clustering,
                          Randoms random,
                          double positiveProportion,
                          int numberSamples)

Parameters:

clustering - True clustering.

random - Source of randomness.

positiveProportion - Proportion of Instances that should be positive examples.

numberSamples - Total number of samples to generate.

Method Detail

hasNext

public boolean hasNext()

next

public Instance next()