net.sf.tweety.logics.pl.analysis

Class FbInconsistencyMeasure

java.lang.Object

net.sf.tweety.logics.commons.analysis.BeliefSetInconsistencyMeasure<PropositionalFormula>

net.sf.tweety.logics.pl.analysis.FbInconsistencyMeasure

All Implemented Interfaces:

InconsistencyMeasure<BeliefSet<PropositionalFormula>>

public class FbInconsistencyMeasure
extends BeliefSetInconsistencyMeasure<PropositionalFormula>

Implements the forgetting-based inconsistency measure from [Besnard. Forgetting-based Inconsistency Measure. SUM 2016] The implementation is a brute-force search approach without much optimization.

Author:

Matthias Thimm

Field Summary

Fields inherited from interface net.sf.tweety.logics.commons.analysis.InconsistencyMeasure

MEASURE_TOLERANCE

Constructor Summary

Constructors

Constructor and Description
FbInconsistencyMeasure()

Method Summary

Modifier and Type	Method and Description
private boolean	hasDuplicate(java.util.Set<Triple<Proposition,java.lang.Integer,SpecialFormula>> current) Checks whether the selection of substitutions is consistent (no proposition to be replaced by + and - at the same time).
java.lang.Double	inconsistencyMeasure(java.util.Collection<PropositionalFormula> formulas) This method measures the inconsistency of the given set of formulas.
private java.util.List<Triple<Proposition,java.lang.Integer,SpecialFormula>>	order(java.util.Set<Triple<Proposition,java.lang.Integer,SpecialFormula>> current) Orders the substitutions in decreasing order.

Methods inherited from class net.sf.tweety.logics.commons.analysis.BeliefSetInconsistencyMeasure

inconsistencyMeasure

Methods inherited from class java.lang.Object

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

Constructor Detail

FbInconsistencyMeasure

public FbInconsistencyMeasure()

Method Detail

inconsistencyMeasure

public java.lang.Double inconsistencyMeasure(java.util.Collection<PropositionalFormula> formulas)

Description copied from class: BeliefSetInconsistencyMeasure

This method measures the inconsistency of the given set of formulas.

Specified by:

inconsistencyMeasure in class BeliefSetInconsistencyMeasure<PropositionalFormula>

Parameters:

formulas - a collection of formulas.

Returns:

a Double indicating the degree of inconsistency.

hasDuplicate

private boolean hasDuplicate(java.util.Set<Triple<Proposition,java.lang.Integer,SpecialFormula>> current)

Checks whether the selection of substitutions is consistent (no proposition to be replaced by + and - at the same time).

Parameters:

current -

Returns:

order

private java.util.List<Triple<Proposition,java.lang.Integer,SpecialFormula>> order(java.util.Set<Triple<Proposition,java.lang.Integer,SpecialFormula>> current)

Orders the substitutions in decreasing order.

Parameters:

current -

Returns: