CountingUtilityFunction (Tweety (Dialogue Systems Library) 1.15 API)

java.lang.Object
- net.sf.tweety.agents.dialogues.structured.CountingUtilityFunction

All Implemented Interfaces:

UtilityFunction
```
public class CountingUtilityFunction
extends Object
implements UtilityFunction
```
This class represents a counting utility function, i.e. a function that ranks a set of propositions to the number of common propositions with this function's focal set.

Author:

Matthias Thimm

Constructor Summary

Constructors
Constructor	Description
`CountingUtilityFunction(Collection<? extends net.sf.tweety.logics.pl.syntax.Proposition> focalSet)`	Creates a new counting utility function for the given focal set.

Method Summary

Modifier and Type Method Description

int rank(Collection<? extends net.sf.tweety.logics.pl.syntax.Proposition> propositions)
Rank the given collection of propositions.
- Methods inherited from class java.lang.Object
  clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - CountingUtilityFunction
```
public CountingUtilityFunction(Collection<? extends net.sf.tweety.logics.pl.syntax.Proposition> focalSet)
```
    Creates a new counting utility function for the given focal set.
    
    Parameters:
    
    focalSet - a collection of propositions.
- Method Detail
  - rank
```
public int rank(Collection<? extends net.sf.tweety.logics.pl.syntax.Proposition> propositions)
```
    Description copied from interface: UtilityFunction
    
    Rank the given collection of propositions. A set S is preferred to a set T if rank(S)>rank(T).
    
    Specified by:
    
    rank in interface UtilityFunction
    
    Parameters:
    
    propositions - a collection of propositions.
    
    Returns:
    
    the rank of the given collection.