fuzzydl

Class TriangularModifier

java.lang.Object

fuzzydl.Modifier

fuzzydl.TriangularModifier

public class TriangularModifier
extends Modifier

Triangular modifier.

Author:

Fernando Bobillo

Constructor Summary

Constructors

Constructor and Description
TriangularModifier(java.lang.String name, double a, double b, double c)

Method Summary

Modifier and Type	Method and Description
double	getA() Gets parameter a.
double	getB() Gets parameter b.
double	getC() Gets parameter c.
double	getMembershipDegree(double x) Gets the image in [0,1] of a real number to the modifier.
java.lang.String	getName() Gets the definition of the modifier.
Concept	modify(Concept c) Modifies a fuzzy concept
void	solveAssertion(Individual ind, Concept con, Degree lowerLimit, KnowledgeBase kb) Solves an assertion of the form (individual, concept, lower degree) with respect to a fuzzy KB.

Methods inherited from class fuzzydl.Modifier

setName, solveComplementAssertion, toString

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

TriangularModifier

public TriangularModifier(java.lang.String name,
                          double a,
                          double b,
                          double c)
                   throws FuzzyOntologyException

Throws:

FuzzyOntologyException

Method Detail

getA

public double getA()

Gets parameter a.

Returns:

Parameter a.

getB

public double getB()

Gets parameter b.

Returns:

Parameter b.

getC

public double getC()

Gets parameter c.

Returns:

Parameter c.

modify

public Concept modify(Concept c)

Description copied from class: Modifier

Modifies a fuzzy concept

Specified by:

modify in class Modifier

Parameters:

c - A fuzzy concept

Returns:

Fuzzy concept resulting from the application of the modifier to c.

getName

public java.lang.String getName()

Description copied from class: Modifier

Gets the definition of the modifier.

Specified by:

getName in class Modifier

Returns:

Definition of the modifier.

getMembershipDegree

public double getMembershipDegree(double x)

Description copied from class: Modifier

Gets the image in [0,1] of a real number to the modifier.

Specified by:

getMembershipDegree in class Modifier

Parameters:

x - A real number in the range of values of the modifierfunction.

Returns:

Image in [0,1] of x to the explicit modifier function.

solveAssertion

public void solveAssertion(Individual ind,
                           Concept con,
                           Degree lowerLimit,
                           KnowledgeBase kb)

Description copied from class: Modifier

Solves an assertion of the form (individual, concept, lower degree) with respect to a fuzzy KB.

Specified by:

solveAssertion in class Modifier

Parameters:

ind - An individual.

con - A concept.

lowerLimit - Lower bound for the degree.

kb - A fuzzy KB.