ProbabilisticSum

java.lang.Object

org.tweetyproject.math.func.fuzzy.TCoNorm

org.tweetyproject.math.func.fuzzy.ProbabilisticSum

All Implemented Interfaces:: BinaryFunction<Double,Double,Double>

public class ProbabilisticSum extends TCoNorm

Represents the probabilistic sum in fuzzy logic, i.e., S(x,y)=x+y-xy

Author:: Matthias Thimm

Constructor Summary

Constructors

Constructor

Description

ProbabilisticSum()

Constructor
Method Summary

Modifier and Type

Method

Description

Double

eval(Double val1, Double val2)

Evaluates the function for the given elements.

Term

evalTerm(Term val1, Term val2)

Gives a representation of this conorm as a mathematical term

TNorm

getDualNorm()

Returns the dual T-norm of this T-conorm.

boolean

isNilpotent()

A T-conorm is nilpotent if there are x,y<1 with s(x,y)=1

Methods inherited from class org.tweetyproject.math.func.fuzzy.TCoNorm
eval, evalTerm

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details
- ProbabilisticSum
  
  public ProbabilisticSum()
  
  Constructor
Method Details
- eval
  
  public Double eval(Double val1, Double val2)
  
  Description copied from interface: BinaryFunction
  
  Evaluates the function for the given elements.
  
  Specified by:
  
  eval in interface BinaryFunction<Double,Double,Double>
  
  Specified by:
  
  eval in class TCoNorm
  
  Parameters:
  
  val1 - some element
  
  val2 - some element
  
  Returns:
  
  the value of the element.
- getDualNorm
  
  public TNorm getDualNorm()
  
  Description copied from class: TCoNorm
  
  Returns the dual T-norm of this T-conorm.
  
  Specified by:
  
  getDualNorm in class TCoNorm
  
  Returns:
  
  the dual T-norm of this T-conorm.
- evalTerm
  
  public Term evalTerm(Term val1, Term val2)
  
  Description copied from class: TCoNorm
  
  Gives a representation of this conorm as a mathematical term
  
  Specified by:
  
  evalTerm in class TCoNorm
  
  Parameters:
  
  val1 - the term denoting the first parameter
  
  val2 - the term denoting the second parameter
  
  Returns:
  
  the term denoting this conorm evaluation on the two terms
- isNilpotent
  
  public boolean isNilpotent()
  
  Description copied from class: TCoNorm
  
  A T-conorm is nilpotent if there are x,y<1 with s(x,y)=1
  
  Specified by:
  
  isNilpotent in class TCoNorm
  
  Returns:
  
  true if the conorm is nilpotent