Package org.tweetyproject.arg.setaf.reasoners

Class SimplePreferredSetAfReasoner

java.lang.Object

org.tweetyproject.arg.setaf.reasoners.AbstractSetAfReasoner

org.tweetyproject.arg.setaf.reasoners.AbstractExtensionSetAfReasoner

org.tweetyproject.arg.setaf.reasoners.SimplePreferredSetAfReasoner

All Implemented Interfaces:

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

public class SimplePreferredSetAfReasoner
extends AbstractExtensionSetAfReasoner

This reasoner for setaf theories performs inference on the preferred extensions. Computes the set of all preferred extensions, i.e., all maximal admissible sets. It does so by first computing all complete extensions and then check for set maximality.

Author:

Matthias Thimm, Sebastian Franke

Constructor Summary

Constructors

Constructor	Description
SimplePreferredSetAfReasoner()	Default

Method Summary

Modifier and Type	Method	Description
Extension<SetAf>	getModel(SetAf bbase)	Returns a single (dedicated) model of the given belief base.
Collection<Extension<SetAf>>	getModels(SetAf bbase)	Returns a characterizing model of the given belief base
boolean	isInstalled()	Checks whether the underlying solver or reasoning mechanism used by this reasoner is installed and available for use.

Methods inherited from class org.tweetyproject.arg.setaf.reasoners.AbstractExtensionSetAfReasoner

getSimpleReasonerForSemantics, query, query

Methods inherited from class java.lang.Object

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

Constructor Details

SimplePreferredSetAfReasoner

public SimplePreferredSetAfReasoner()

Default

Method Details

getModels

public Collection<Extension<SetAf>> getModels(SetAf 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<SetAf> getModel(SetAf 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.

isInstalled

public boolean isInstalled()

Description copied from interface: QualitativeReasoner

Checks whether the underlying solver or reasoning mechanism used by this reasoner is installed and available for use. This can be helpful when the reasoner depends on external tools or libraries for performing the reasoning tasks.

Returns:

`true` if the solver is installed and available, `false` otherwise.