Package org.semanticweb.HermiT.tableau

Examples of org.semanticweb.HermiT.tableau.ReasoningTaskDescription

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            OWLIndividual freshIndividual0=factory.getOWLAnonymousIndividual("fresh-individual-0");
            OWLIndividual freshIndividualN=factory.getOWLAnonymousIndividual("fresh-individual-"+subPropertyChain.size());
            additionalAxioms[axiomIndex++]=factory.getOWLClassAssertionAxiom(pseudoNominal,freshIndividualN);
            additionalAxioms[axiomIndex++]=factory.getOWLClassAssertionAxiom(allSuperNotPseudoNominal,freshIndividual0);
            Tableau tableau=getTableau(additionalAxioms);
            return !tableau.isSatisfiable(true,null,null,null,null,null,new ReasoningTaskDescription(true,"subproperty chain subsumption"));
        }
    }
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            Role roleToTest=nodeToTest.getRepresentative();
            Atom roleToTestAssertion=roleToTest.getRoleAssertion(freshIndividualA,freshIndividualB);
            Set<Atom> perTestAtoms=new HashSet<Atom>(2);
            perTestAtoms.add(roleAssertion);
            perTestAtoms.add(roleToTestAssertion);
            if (!tableau.isSatisfiable(false,perTestAtoms,null,null,null,null,new ReasoningTaskDescription(true,"disjointness of {0} and {1}",role,roleToTest))) {
                // disjoint
                if (direct)
                    result.add(nodeToTest);
                else
                    result.addAll(nodeToTest.getDescendantNodes());
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        Atom roleAssertion2=role2.getRoleAssertion(freshIndividualA,freshIndividualB);
        Set<Atom> perTestAtoms=new HashSet<Atom>(2);
        perTestAtoms.add(roleAssertion1);
        perTestAtoms.add(roleAssertion2);
        Tableau tableau=getTableau();
        boolean disjoint=!tableau.isSatisfiable(false,perTestAtoms,null,null,null,null,new ReasoningTaskDescription(true,"disjointness of {0} and {1}",role1,role2));
        return disjoint;
    }
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        Individual freshIndividualB=Individual.createAnonymous("fresh-individual-B");
        Set<Atom> assertions=new HashSet<Atom>();
        assertions.add(role.getRoleAssertion(freshIndividual,freshIndividualA));
        assertions.add(role.getRoleAssertion(freshIndividual,freshIndividualB));
        assertions.add(Atom.create(Inequality.INSTANCE,freshIndividualA,freshIndividualB));
        return !getTableau().isSatisfiable(false,assertions,null,null,null,null,new ReasoningTaskDescription(true,"functionality of {0}",role));
    }
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        Individual freshIndividualB=Individual.createAnonymous("fresh-individual-B");
        Set<Atom> assertions=new HashSet<Atom>();
        assertions.add(role.getRoleAssertion(freshIndividualA,freshIndividual));
        assertions.add(role.getRoleAssertion(freshIndividualB,freshIndividual));
        assertions.add(Atom.create(Inequality.INSTANCE,freshIndividualA,freshIndividualB));
        return !getTableau().isSatisfiable(false,assertions,null,null,null,null,new ReasoningTaskDescription(true,"inverse-functionality of {0}",role));
    }
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    public boolean isIrreflexive(OWLObjectPropertyExpression propertyExpression) {
        checkPreConditions(propertyExpression);
        if (!m_isConsistent) return true;
        Role role=H(propertyExpression);
        Individual freshIndividual=Individual.createAnonymous("fresh-individual");
        return !getTableau().isSatisfiable(false,Collections.singleton(role.getRoleAssertion(freshIndividual,freshIndividual)),null,null,null,null,new ReasoningTaskDescription(true,"irreflexivity of {0}",role));
    }
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        OWLClassExpression allNotPseudoNominal=factory.getOWLObjectAllValuesFrom(propertyExpression,pseudoNominal.getObjectComplementOf());
        OWLIndividual freshIndividual=factory.getOWLAnonymousIndividual("fresh-individual");
        OWLAxiom pseudoNominalAssertion=factory.getOWLClassAssertionAxiom(pseudoNominal,freshIndividual);
        OWLAxiom allNotPseudoNominalAssertion=factory.getOWLClassAssertionAxiom(allNotPseudoNominal,freshIndividual);
        Tableau tableau=getTableau(pseudoNominalAssertion,allNotPseudoNominalAssertion);
        return !tableau.isSatisfiable(true,null,null,null,null,null,new ReasoningTaskDescription(true,"symmetry of {0}",H(propertyExpression)));
    }
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        OWLIndividual freshIndividualA=factory.getOWLAnonymousIndividual("fresh-individual-A");
        OWLIndividual freshIndividualB=factory.getOWLAnonymousIndividual("fresh-individual-B");
        OWLAxiom assertion1=factory.getOWLObjectPropertyAssertionAxiom(propertyExpression,freshIndividualA,freshIndividualB);
        OWLAxiom assertion2=factory.getOWLObjectPropertyAssertionAxiom(propertyExpression.getInverseProperty(),freshIndividualA,freshIndividualB);
        Tableau tableau=getTableau(assertion1,assertion2);
        return !tableau.isSatisfiable(true,null,null,null,null,null,new ReasoningTaskDescription(true,"asymmetry of {0}",H(propertyExpression)));
    }
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        OWLIndividual freshIndividualB=factory.getOWLAnonymousIndividual("fresh-individual-B");
        OWLAxiom assertion1=factory.getOWLObjectPropertyAssertionAxiom(propertyExpression,freshIndividualA,freshIndividualB);
        OWLAxiom assertion2=factory.getOWLClassAssertionAxiom(allNotPseudoNominal,freshIndividualB);
        OWLAxiom assertion3=factory.getOWLClassAssertionAxiom(pseudoNominal,freshIndividualA);
        Tableau tableau=getTableau(assertion1,assertion2,assertion3);
        return !tableau.isSatisfiable(true,null,null,null,null,null,new ReasoningTaskDescription(true,"symmetry of {0}",propertyExpression));
    }
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        OWLAxiom assertion1=factory.getOWLObjectPropertyAssertionAxiom(propertyExpression,freshIndividualA,freshIndividualB);
        OWLAxiom assertion2=factory.getOWLObjectPropertyAssertionAxiom(propertyExpression,freshIndividualB,freshIndividualC);
        OWLAxiom assertion3=factory.getOWLClassAssertionAxiom(allNotPseudoNominal,freshIndividualA);
        OWLAxiom assertion4=factory.getOWLClassAssertionAxiom(pseudoNominal,freshIndividualC);
        Tableau tableau=getTableau(assertion1,assertion2,assertion3,assertion4);
        return !tableau.isSatisfiable(true,null,null,null,null,null,new ReasoningTaskDescription(true,"transitivity of {0}",H(propertyExpression)));
    }
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Related Classes of org.semanticweb.HermiT.tableau.ReasoningTaskDescription

  • org.semanticweb.HermiT.EntailmentChecker
  • org.semanticweb.HermiT.Reasoner
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