Package org.tweetyproject.arg.dung.reasoner

Class VacuousReductReasoner

java.lang.Object

org.tweetyproject.arg.dung.reasoner.AbstractDungReasoner

org.tweetyproject.arg.dung.reasoner.AbstractExtensionReasoner

org.tweetyproject.arg.dung.reasoner.VacuousReductReasoner

All Implemented Interfaces:

ModelProvider<Argument,DungTheory,Extension<DungTheory>>, PostulateEvaluatable<Argument>, QualitativeReasoner<DungTheory,Argument>, Reasoner<Boolean,DungTheory,Argument>

Direct Known Subclasses:

StronglyUndisputedReasoner, UndisputedReasoner

public class VacuousReductReasoner
extends AbstractExtensionReasoner

Implements a general vacuous reduct reasoner, as proposed in [Thimm. On Undisputed Sets in Abstract Argumentation. AAAI2023] Given a base reasoner A and a reduct reasoner B, a set E is an extension wrt. to vacuous reduct semantics, if E is a A-extension and the corresponding E-reduct does not contain a non-empty B-extension.

Author:

Matthias Thimm

Constructor Summary

Constructors

Constructor	Description
VacuousReductReasoner(AbstractExtensionReasoner baseReasoner, AbstractExtensionReasoner reductReasoner)	Creates a new VacuousReductReasoner with the given base and reduct reasoners.

Method Summary

Modifier and Type	Method	Description
Extension<DungTheory>	getModel(DungTheory bbase)	Returns a single (dedicated) model of the given belief base.
Collection<Extension<DungTheory>>	getModels(DungTheory bbase)	Returns a characterizing model of the given belief base

Methods inherited from class org.tweetyproject.arg.dung.reasoner.AbstractExtensionReasoner

getSimpleReasonerForSemantics, isInstalled, query, query

Methods inherited from class java.lang.Object

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

Constructor Details

VacuousReductReasoner

public VacuousReductReasoner(AbstractExtensionReasoner baseReasoner,
 AbstractExtensionReasoner reductReasoner)

Creates a new VacuousReductReasoner with the given base and reduct reasoners.

Parameters:

baseReasoner - some extension reasoner

reductReasoner - some extension reasoner

Method Details

getModels

public Collection<Extension<DungTheory>> getModels(DungTheory bbase)

Description copied from interface: ModelProvider

Returns a characterizing model of the given belief base

Parameters:

bbase - some belief base

Returns:

the (selected) models of the belief base

getModel

public Extension<DungTheory> getModel(DungTheory bbase)

Description copied from interface: ModelProvider

Returns a single (dedicated) model of the given belief base. If the implemented method allows for more than one dedicated model, the selection may be non-deterministic.

Parameters:

bbase - some belief base

Returns:

a selected model of the belief base.