org.openimaj.ml.clustering.incremental

Class IncrementalLifetimeSparseClusterer

java.lang.Object

org.openimaj.ml.clustering.incremental.IncrementalSparseClusterer

org.openimaj.ml.clustering.incremental.IncrementalLifetimeSparseClusterer

All Implemented Interfaces:

Clusterer<SparseMatrix>, DataClusterer<SparseMatrix,IndexClusters>, SparseMatrixClusterer<IndexClusters>

public class IncrementalLifetimeSparseClusterer
extends IncrementalSparseClusterer

An IncrementalSparseClusterer which also has a notion of a lifetime. A lifetime is the number of windows which a given item is allowed to live before it must be clustered. By default this value is 3, meaning if 3 windows pass and a given row was not in a valid cluster, it is classified as noise and removed from clustering. More specifically it is added to a cluster of its own in isolation

Author:

Sina Samangooei (ss@ecs.soton.ac.uk)

Field Summary

Fields inherited from class org.openimaj.ml.clustering.incremental.IncrementalSparseClusterer

threshold

Constructor Summary

Constructors

Constructor and Description
IncrementalLifetimeSparseClusterer(SparseMatrixClusterer<? extends IndexClusters> clusterer, int window)
IncrementalLifetimeSparseClusterer(SparseMatrixClusterer<? extends IndexClusters> clusterer, int window, double threshold, int lifetime)
IncrementalLifetimeSparseClusterer(SparseMatrixClusterer<? extends IndexClusters> clusterer, int window, int lifetime)

Method Summary

Modifier and Type	Method and Description
protected void	detectInactive(IndexClusters oldClusters, IndexClusters newClusters, gnu.trove.set.TIntSet inactiveRows, List<int[]> completedClusters) Given the old and new clusters, make a decision as to which rows are now inactive, and therefore which clusters are now completed

Methods inherited from class org.openimaj.ml.clustering.incremental.IncrementalSparseClusterer

calculateStability, cluster, performClustering

Methods inherited from class java.lang.Object

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

Constructor Detail

IncrementalLifetimeSparseClusterer

public IncrementalLifetimeSparseClusterer(SparseMatrixClusterer<? extends IndexClusters> clusterer,
                                          int window)

Parameters:

clusterer - the underlying clusterer

window -

IncrementalLifetimeSparseClusterer

public IncrementalLifetimeSparseClusterer(SparseMatrixClusterer<? extends IndexClusters> clusterer,
                                          int window,
                                          int lifetime)

Parameters:

clusterer - the underlying clusterer

window -

lifetime -

IncrementalLifetimeSparseClusterer

public IncrementalLifetimeSparseClusterer(SparseMatrixClusterer<? extends IndexClusters> clusterer,
                                          int window,
                                          double threshold,
                                          int lifetime)

Parameters:

clusterer - the underlying clusterer

window -

threshold -

lifetime -

Method Detail

detectInactive

protected void detectInactive(IndexClusters oldClusters,
                              IndexClusters newClusters,
                              gnu.trove.set.TIntSet inactiveRows,
                              List<int[]> completedClusters)

Description copied from class: IncrementalSparseClusterer

Given the old and new clusters, make a decision as to which rows are now inactive, and therefore which clusters are now completed

Overrides:

detectInactive in class IncrementalSparseClusterer