Class AbstractCAFReasoner

java.lang.Object

org.tweetyproject.arg.caf.reasoner.AbstractCAFReasoner

All Implemented Interfaces:

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

Direct Known Subclasses:

SimpleCAFAdmissibleReasoner, SimpleCAFGroundedReasoner, SimpleCAFPreferredReasoner, SimpleCAFStableReasoner, SimpleCAFWeakGroundedReasoner

public abstract class AbstractCAFReasoner
extends Object
implements QualitativeReasoner<ConstrainedArgumentationFramework,Argument>, ModelProvider<Argument,ConstrainedArgumentationFramework,Extension<ConstrainedArgumentationFramework>>, PostulateEvaluatable<Argument>

Ancestor class for all CAF reasoners.

Author:

Sandra Hoffmann

Constructor Summary

Constructors

Constructor	Description
AbstractCAFReasoner()

Method Summary

Modifier and Type	Method	Description
static AbstractCAFReasoner	getSimpleReasonerForSemantics(CAFSemantics semantics)	Creates a reasoner for the given semantics.
boolean	isInstalled()	Checks whether the underlying solver or reasoning mechanism used by this reasoner is installed and available for use.
Boolean	query(ConstrainedArgumentationFramework beliefbase, Argument formula)	Queries the given belief base with the provided formula and returns a boolean result.
Boolean	query(ConstrainedArgumentationFramework beliefbase, Argument formula, InferenceMode inferenceMode)	Queries the given AAF for the given argument using the given inference type.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.tweetyproject.commons.ModelProvider

getModel, getModels

Constructor Details

AbstractCAFReasoner

public AbstractCAFReasoner()

Method Details

query

public Boolean query(ConstrainedArgumentationFramework beliefbase,
 Argument formula)

Description copied from interface: QualitativeReasoner

Queries the given belief base with the provided formula and returns a boolean result. The result indicates whether the formula is entailed or satisfied by the belief base according to the qualitative reasoning method implemented by the reasoner.

Specified by:

query in interface QualitativeReasoner<ConstrainedArgumentationFramework,Argument>

Specified by:

query in interface Reasoner<Boolean,ConstrainedArgumentationFramework,Argument>

Parameters:

beliefbase - The belief base to be queried.

formula - The formula for which the query is made.

Returns:

`TRUE` if the formula is entailed or satisfied by the belief base, `FALSE` otherwise.

query

public Boolean query(ConstrainedArgumentationFramework beliefbase,
 Argument formula,
 InferenceMode inferenceMode)

Queries the given AAF for the given argument using the given inference type.

Parameters:

beliefbase - an AAF

formula - a single argument

inferenceMode - either InferenceMode.SKEPTICAL or InferenceMode.CREDULOUS

Returns:

"true" if the argument is accepted

getSimpleReasonerForSemantics

public static AbstractCAFReasoner getSimpleReasonerForSemantics(CAFSemantics semantics)

Creates a reasoner for the given semantics.

Parameters:

semantics - a semantics

Returns:

a reasoner for the given CAF theory, inference type, and semantics

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.

Specified by:

isInstalled in interface QualitativeReasoner<ConstrainedArgumentationFramework,Argument>

Returns:

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