net.sf.tweety.agents.dialogues.structured

Class CountingUtilityFunction

java.lang.Object

net.sf.tweety.agents.dialogues.structured.CountingUtilityFunction

All Implemented Interfaces:

UtilityFunction

public class CountingUtilityFunction
extends java.lang.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

Field Summary

Fields

Modifier and Type	Field and Description
private java.util.Set<Proposition>	focalSet The focal set of this function.

Constructor Summary

Constructors

Constructor and Description
CountingUtilityFunction(java.util.Collection<? extends Proposition> focalSet) Creates a new counting utility function for the given focal set.

Method Summary

Modifier and Type	Method and Description
int	rank(java.util.Collection<? extends 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

Field Detail

focalSet

private java.util.Set<Proposition> focalSet

The focal set of this function.

Constructor Detail

CountingUtilityFunction

public CountingUtilityFunction(java.util.Collection<? extends 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(java.util.Collection<? extends 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.