de.htwdd.rosenkoenig.neuro.net
Class Cosine

java.lang.Object
  de.htwdd.rosenkoenig.neuro.net.NeighbourhoodFunction
      de.htwdd.rosenkoenig.neuro.net.Cosine

public class Cosine
extends NeighbourhoodFunction

Cosine shaped neighborhood function.

Field Summary

private static double

piHalf

Fields inherited from class de.htwdd.rosenkoenig.neuro.net.NeighbourhoodFunction

radius

Constructor Summary

Cosine()
Ctor, does nothing, so far.

Method Summary

double

computeActivation(double distance) The activation function.

Methods inherited from class de.htwdd.rosenkoenig.neuro.net.NeighbourhoodFunction

getRadius, setRadius

Methods inherited from class java.lang.Object

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

Field Detail

piHalf

private static final double piHalf

See Also:

Constant Field Values

Constructor Detail

Cosine

public Cosine()

Ctor, does nothing, so far.

Method Detail

computeActivation

public double computeActivation(double distance)

The activation function.

Specified by:

computeActivation in class NeighbourhoodFunction

Parameters:

distance - euclidic distance to the winning neuron

Returns:

activation for the given distance