mulan.classifier.neural.model
Class ActivationLinear

java.lang.Object
  mulan.classifier.neural.model.ActivationFunction
      mulan.classifier.neural.model.ActivationLinear

All Implemented Interfaces:

Serializable

public class ActivationLinear
extends ActivationFunction

Implements the linear activation function. The input is simply passed to the output. This activation function is commonly used for input units of networks, which serves as a place holders for input pattern and forwards them for processing.

Version:

2012.02.27

Author:

Jozef Vilcek

See Also:

Serialized Form

Constructor Summary

ActivationLinear()

Method Summary

double	activate(double input) Computes an output value of the function for given input.
double	derivative(double input) Computes an output value of function derivation for given input.
double	getMax() Gets the maximum value the function can output.
double	getMin() Gets the minimum value the function can output.

Methods inherited from class java.lang.Object

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

Constructor Detail

ActivationLinear

public ActivationLinear()

Method Detail

activate

public double activate(double input)

Description copied from class: ActivationFunction

Computes an output value of the function for given input.

Specified by:

activate in class ActivationFunction

Parameters:

input - the input value to the function

Returns:

the output value

derivative

public double derivative(double input)

Description copied from class: ActivationFunction

Computes an output value of function derivation for given input.

Specified by:

derivative in class ActivationFunction

Parameters:

input - the input value to the function

Returns:

the output value

getMax

public double getMax()

Description copied from class: ActivationFunction

Gets the maximum value the function can output.

Specified by:

getMax in class ActivationFunction

Returns:

maximum value of the function

getMin

public double getMin()

Description copied from class: ActivationFunction

Gets the minimum value the function can output.

Specified by:

getMin in class ActivationFunction

Returns:

minimum value of the function