Package org.tweetyproject.arg.weighted.reasoner

Class SimpleWeightedStableReasoner<T>

java.lang.Object

org.tweetyproject.arg.weighted.reasoner.SimpleWeightedStableReasoner<T>

Type Parameters:

T - The type

public class SimpleWeightedStableReasoner<T>
extends Object

This reasoner for weighted Dung theories performs inference on the alpha-gamma-stable extensions. Computes the set of all alpha-gamma-stable extensions. It does so by first computing all alpha-gamma-preferred extensions and then checking if they are alpha-gamma-stable extensions.

Author:

Sandra Hoffmann

Constructor Summary

Constructors

Constructor	Description
SimpleWeightedStableReasoner()	Default Constructor

Method Summary

Modifier and Type	Method	Description
Extension<DungTheory>	getModel(WeightedArgumentationFramework<T> bbase, T alpha, T gamma)	Computes and returns a single alpha-gamma-stable extension for the given weighted argumentation framework.
Collection<Extension<DungTheory>>	getModels(WeightedArgumentationFramework<T> bbase, T alpha, T gamma)	Computes all alpha-gamma-stable extensions for the given weighted argumentation framework.

Methods inherited from class java.lang.Object

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

Constructor Details

SimpleWeightedStableReasoner

public SimpleWeightedStableReasoner()

Default Constructor

Method Details

getModels

public Collection<Extension<DungTheory>> getModels(WeightedArgumentationFramework<T> bbase,
 T alpha,
 T gamma)

Computes all alpha-gamma-stable extensions for the given weighted argumentation framework. This method uses a preferred reasoner to find preferred extensions and then filters out the extensions that are also stable.

Parameters:

bbase - The weighted argumentation framework.

alpha - The threshold representing the maximum allowable combined weight of internal attacks.

gamma - The threshold for defense, representing the maximum allowable difference between the aggregated weights of attack and defense.

Returns:

A collection of alpha-gamma-stable extensions.

getModel

public Extension<DungTheory> getModel(WeightedArgumentationFramework<T> bbase,
 T alpha,
 T gamma)

Computes and returns a single alpha-gamma-stable extension for the given weighted argumentation framework.

Parameters:

bbase - The weighted argumentation framework.

alpha - The threshold representing the maximum allowable combined weight of internal attacks.

gamma - The threshold for defense, representing the maximum allowable difference between the aggregated weights of attack and defense.

Returns:

The first alpha-gamma-stable extension found.