Package org.tweetyproject.logics.ml.reasoner

Class SimpleMlReasoner

java.lang.Object

org.tweetyproject.logics.ml.reasoner.AbstractMlReasoner

org.tweetyproject.logics.ml.reasoner.SimpleMlReasoner

All Implemented Interfaces:

QualitativeReasoner<MlBeliefSet,FolFormula>, Reasoner<Boolean,MlBeliefSet,FolFormula>

public class SimpleMlReasoner
extends AbstractMlReasoner

This class implements inference for modal logic using a brute-force approach. A query, i.e. a formula in modal logic, can be inferred by a knowledge base, iff every Kripke model of the knowledge base is also a Kripke model of the query.

Author:

Anna Gessler, Matthias Thimm

Field Summary

Fields inherited from class org.tweetyproject.logics.ml.reasoner.AbstractMlReasoner

defaultReasoner

Constructor Summary

Constructors

Constructor	Description
SimpleMlReasoner()	Default Constructor

Method Summary

Modifier and Type	Method	Description
boolean	isInstalled()	Checks whether the underlying solver or reasoning mechanism used by this reasoner is installed and available for use.
Boolean	query(MlBeliefSet mbs, FolFormula formula)	Queries the given belief base with the provided formula and returns a boolean result.

Methods inherited from class org.tweetyproject.logics.ml.reasoner.AbstractMlReasoner

getDefaultReasoner, setDefaultReasoner

Methods inherited from class java.lang.Object

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

Constructor Details

SimpleMlReasoner

public SimpleMlReasoner()

Default Constructor

Method Details

query

public Boolean query(MlBeliefSet mbs,
 FolFormula 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<MlBeliefSet,FolFormula>

Specified by:

query in interface Reasoner<Boolean,MlBeliefSet,FolFormula>

Specified by:

query in class AbstractMlReasoner

Parameters:

mbs - 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.

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.