org.encog.mathutil.matrices.hessian

Class HessianCR

java.lang.Object

org.encog.mathutil.matrices.hessian.BasicHessian

org.encog.mathutil.matrices.hessian.HessianCR

All Implemented Interfaces:

ComputeHessian, MultiThreadable

public class HessianCR
extends BasicHessian
implements MultiThreadable

Calculate the Hessian matrix using the chain rule method.

Field Summary

Fields inherited from class org.encog.mathutil.matrices.hessian.BasicHessian

flat, gradients, hessian, hessianMatrix, network, sse, training

Constructor Summary

Constructors

Constructor and Description
HessianCR()

Method Summary

Modifier and Type	Method and Description
void	compute() Compute the Hessian.
int	getThreadCount()
void	init(BasicNetwork theNetwork, MLDataSet theTraining) Init the class.
void	setThreadCount(int numThreads) Set the number of threads.

Methods inherited from class org.encog.mathutil.matrices.hessian.BasicHessian

clear, getGradients, getHessian, getHessianMatrix, getSSE, updateHessian

Methods inherited from class java.lang.Object

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

Constructor Detail

HessianCR

public HessianCR()

Method Detail

init

public void init(BasicNetwork theNetwork,
                 MLDataSet theTraining)

Init the class.

Specified by:

init in interface ComputeHessian

Overrides:

init in class BasicHessian

Parameters:

theNetwork - The neural network to train.

theTraining - The training set to train with.

compute

public void compute()

Compute the Hessian.

Specified by:

compute in interface ComputeHessian

setThreadCount

public final void setThreadCount(int numThreads)

Set the number of threads. Specify zero to tell Encog to automatically determine the best number of threads for the processor. If OpenCL is used as the target device, then this value is not used.

Specified by:

setThreadCount in interface MultiThreadable

Parameters:

numThreads - The number of threads.

getThreadCount

public int getThreadCount()

Specified by:

getThreadCount in interface MultiThreadable

Returns:

The thread count.