org.knime.base.node.mine.bfn.fuzzy.norm
Class YagerNorm

java.lang.Object
  org.knime.base.node.mine.bfn.fuzzy.norm.YagerNorm

All Implemented Interfaces:

Norm

public final class YagerNorm
extends Object
implements Norm

SCHWEIZER and SKLAR norm.

Author:

Thomas Gabriel, University of Konstanz

Field Summary

Fields inherited from interface org.knime.base.node.mine.bfn.fuzzy.norm.Norm

NORM_KEY, NORMS

Method Summary

double	computeTCoNorm(double a, double b) Computes fuzzy conjunction.
double	computeTNorm(double a, double b) Computes the fuzzy disjunction.
static Norm	getInstance()
static Norm	getInstance(double p)
String	toString() Returns the string representation as Yager[p] Norm of this norm.

Methods inherited from class java.lang.Object

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

Method Detail

getInstance

public static final Norm getInstance(double p)

Parameters:

p - current value of this norm

Returns:

instance of this class

getInstance

public static final Norm getInstance()

Returns:

instance of this class; default p = 2f

computeTNorm

public double computeTNorm(double a,
                           double b)

Description copied from interface: Norm

Computes the fuzzy disjunction.

Specified by:

computeTNorm in interface Norm

Parameters:

a - membership degree of fuzzy membership function

b - membership degree of fuzzy membership function

Returns:

calculated fuzzy membership degree of a and b using Yager_p norm

computeTCoNorm

public double computeTCoNorm(double a,
                             double b)

Description copied from interface: Norm

Computes fuzzy conjunction.

Specified by:

computeTCoNorm in interface Norm

Parameters:

a - membership degree of fuzzy membership function

b - membership degree of fuzzy membership function

Returns:

calculated fuzzy membership degree of a and b using Yager_p Norm

toString

public final String toString()

Returns the string representation as Yager[p] Norm of this norm.

Overrides:

toString in class Object

Returns:

an identifier for this norm