moa.clusterers.clustream

Class ClustreamKernel

java.lang.Object

moa.AbstractMOAObject

moa.cluster.Cluster

moa.cluster.SphereCluster

moa.cluster.CFCluster

moa.clusterers.clustream.ClustreamKernel

All Implemented Interfaces:

Serializable, MOAObject

public class ClustreamKernel
extends CFCluster

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected double	LST
static double	MIN_VARIANCE
protected double	SST

Fields inherited from class moa.cluster.CFCluster

LS, N, radiusFactor, SS

Constructor Summary

Constructors

Constructor and Description
ClustreamKernel(ClustreamKernel cluster, double t, int m)
ClustreamKernel(weka.core.Instance instance, int dimensions, long timestamp, double t, int m)

Method Summary

Methods

Modifier and Type	Method and Description
void	add(CFCluster other2)
double[]	getCenter()
CFCluster	getCF()
protected void	getClusterSpecificInfo(ArrayList<String> infoTitle, ArrayList<String> infoValue)
double	getInclusionProbability(weka.core.Instance instance) See interface Cluster
double	getRadius() See interface Cluster
double	getRelevanceStamp()
void	insert(weka.core.Instance instance, long timestamp)
static double	inverseError(double x) Approximates the inverse error function.
boolean	isEmpty() Check if this cluster is empty or not.

Methods inherited from class moa.cluster.CFCluster

addVectors, getN, getWeight, setN

Methods inherited from class moa.cluster.SphereCluster

combine, getCenterDistance, getCenterDistance, getDistanceVector, getDistanceVector, getHullDistance, merge, overlapRadiusDegree, overlapSave, sample, setCenter, setRadius, setWeight

Methods inherited from class moa.cluster.Cluster

getDescription, getGroundTruth, getId, getInfo, getMeasureValue, isGroundTruth, setGroundTruth, setId, setMeasureValue, setMeasureValue

Methods inherited from class moa.AbstractMOAObject

copy, copy, measureByteSize, measureByteSize, toString

Methods inherited from class java.lang.Object

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

Field Detail

MIN_VARIANCE

public static final double MIN_VARIANCE

See Also:

Constant Field Values

LST

protected double LST

SST

protected double SST

Constructor Detail

ClustreamKernel

public ClustreamKernel(weka.core.Instance instance,
               int dimensions,
               long timestamp,
               double t,
               int m)

ClustreamKernel

public ClustreamKernel(ClustreamKernel cluster,
               double t,
               int m)

Method Detail

insert

public void insert(weka.core.Instance instance,
          long timestamp)

add

public void add(CFCluster other2)

Overrides:

add in class CFCluster

getRelevanceStamp

public double getRelevanceStamp()

getRadius

public double getRadius()

Description copied from class: CFCluster

See interface Cluster

Specified by:

getRadius in class CFCluster

Returns:

The radius of the cluster.

getCF

public CFCluster getCF()

Specified by:

getCF in class CFCluster

getCenter

public double[] getCenter()

Overrides:

getCenter in class CFCluster

Returns:

this kernels' center

getInclusionProbability

public double getInclusionProbability(weka.core.Instance instance)

See interface Cluster

Specified by:

getInclusionProbability in class CFCluster

Parameters:

point -

Returns:

isEmpty

public boolean isEmpty()

Check if this cluster is empty or not.

Returns:

true if the cluster has no data points, false otherwise.

inverseError

public static double inverseError(double x)

Approximates the inverse error function. Clustream needs this.

Parameters:

z -

getClusterSpecificInfo

protected void getClusterSpecificInfo(ArrayList<String> infoTitle,
                          ArrayList<String> infoValue)

Overrides:

getClusterSpecificInfo in class SphereCluster