org.encog.neural.activation
Class ActivationSoftMax

java.lang.Object
  org.encog.neural.activation.BasicActivationFunction
      org.encog.neural.activation.ActivationSoftMax

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, ActivationFunction, EncogPersistedObject

public class ActivationSoftMax
extends BasicActivationFunction
implements ActivationFunction

The softmax activation function.

Author:

jheaton

See Also:

Serialized Form

Constructor Summary

ActivationSoftMax()

Method Summary

void	activationFunction(double[] d) Implements the activation function.
java.lang.Object	clone()
Persistor	createPersistor() Create a Persistor for this activation function.
void	derivativeFunction(double[] d) Implements the activation function derivative.
boolean	hasDerivative()

Methods inherited from class org.encog.neural.activation.BasicActivationFunction

getDescription, getName, setDescription, setName

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.encog.persist.EncogPersistedObject

getDescription, getName, setDescription, setName

Constructor Detail

ActivationSoftMax

public ActivationSoftMax()

Method Detail

activationFunction

public void activationFunction(double[] d)

Implements the activation function. The array is modified according to the activation function being used. See the class description for more specific information on this type of activation function.

Specified by:

activationFunction in interface ActivationFunction

Parameters:

d - The input array to the activation function.

clone

public java.lang.Object clone()

Specified by:

clone in interface EncogPersistedObject

Overrides:

clone in class BasicActivationFunction

Returns:

The object cloned;

createPersistor

public Persistor createPersistor()

Create a Persistor for this activation function.

Specified by:

createPersistor in interface EncogPersistedObject

Overrides:

createPersistor in class BasicActivationFunction

Returns:

The persistor.

derivativeFunction

public void derivativeFunction(double[] d)

Implements the activation function derivative. The array is modified according derivative of the activation function being used. See the class description for more specific information on this type of activation function. Propagation training requires the derivative. Some activation functions do not support a derivative and will throw an error.

Specified by:

derivativeFunction in interface ActivationFunction

Parameters:

d - The input array to the activation function.

hasDerivative

public boolean hasDerivative()

Specified by:

hasDerivative in interface ActivationFunction

Returns:

Return false, softmax has no derivative.