gov.sandia.cognition.learning.function.cost

Class ParallelClusterDistortionMeasure<DataType,ClusterType extends Cluster<DataType>>

java.lang.Object

gov.sandia.cognition.util.AbstractCloneableSerializable

gov.sandia.cognition.learning.function.cost.ClusterDistortionMeasure<DataType,ClusterType>

gov.sandia.cognition.learning.function.cost.ParallelClusterDistortionMeasure<DataType,ClusterType>

Type Parameters:

DataType - Type of data to compute the distortion over

ClusterType - Type of clusters to use

All Implemented Interfaces:

ParallelAlgorithm, Evaluator<java.util.Collection<? extends ClusterType>,java.lang.Double>, CostFunction<java.util.Collection<? extends ClusterType>,ClusterDivergenceFunction<? super ClusterType,? super DataType>>, CloneableSerializable, java.io.Serializable, java.lang.Cloneable

public class ParallelClusterDistortionMeasure<DataType,ClusterType extends Cluster<DataType>>
extends ClusterDistortionMeasure<DataType,ClusterType>
implements ParallelAlgorithm

A parallel implementation of ClusterDistortionMeasure.

Since:

3.0

Author:

Kevin R. Dixon

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
ParallelClusterDistortionMeasure() Creates a new instance of ParallelClusterDistortionMeasure
ParallelClusterDistortionMeasure(ClusterDivergenceFunction<ClusterType,DataType> costParameters) Creates a new instance of ClusterDistortionMeasure

Method Summary

Modifier and Type	Method and Description
java.lang.Double	evaluate(java.util.Collection<? extends ClusterType> target) Computes the cost of the given target.
int	getNumThreads() Gets the number of threads in the thread pool.
java.util.concurrent.ThreadPoolExecutor	getThreadPool() Gets the thread pool for the algorithm to use.
void	setThreadPool(java.util.concurrent.ThreadPoolExecutor threadPool) Sets the thread pool for the algorithm to use.

Methods inherited from class gov.sandia.cognition.learning.function.cost.ClusterDistortionMeasure

clone, evaluate, getCostParameters, setCostParameters

Methods inherited from class java.lang.Object

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

Methods inherited from interface gov.sandia.cognition.util.CloneableSerializable

clone

Constructor Detail

ParallelClusterDistortionMeasure

public ParallelClusterDistortionMeasure()

Creates a new instance of ParallelClusterDistortionMeasure

ParallelClusterDistortionMeasure

public ParallelClusterDistortionMeasure(ClusterDivergenceFunction<ClusterType,DataType> costParameters)

Creates a new instance of ClusterDistortionMeasure

Parameters:

costParameters - Divergence function that defines the cost function

Method Detail

evaluate

public java.lang.Double evaluate(java.util.Collection<? extends ClusterType> target)

Description copied from interface: CostFunction

Computes the cost of the given target.

Specified by:

evaluate in interface Evaluator<java.util.Collection<? extends ClusterType extends Cluster<DataType>>,java.lang.Double>

Specified by:

evaluate in interface CostFunction<java.util.Collection<? extends ClusterType extends Cluster<DataType>>,ClusterDivergenceFunction<? super ClusterType extends Cluster<DataType>,? super DataType>>

Overrides:

evaluate in class ClusterDistortionMeasure<DataType,ClusterType extends Cluster<DataType>>

Parameters:

target - The object to evaluate.

Returns:

The cost of the given object.

getThreadPool

public java.util.concurrent.ThreadPoolExecutor getThreadPool()

Description copied from interface: ParallelAlgorithm

Gets the thread pool for the algorithm to use.

Specified by:

getThreadPool in interface ParallelAlgorithm

Returns:

Thread pool used for parallelization.

setThreadPool

public void setThreadPool(java.util.concurrent.ThreadPoolExecutor threadPool)

Description copied from interface: ParallelAlgorithm

Sets the thread pool for the algorithm to use.

Specified by:

setThreadPool in interface ParallelAlgorithm

Parameters:

threadPool - Thread pool used for parallelization.

getNumThreads

public int getNumThreads()

Description copied from interface: ParallelAlgorithm

Gets the number of threads in the thread pool.

Specified by:

getNumThreads in interface ParallelAlgorithm

Returns:

Number of threads in the thread pool