Examples of org.semanticweb.HermiT.tableau.ReasoningTaskDescription

org.semanticweb.HermiT.tableau.ReasoningTaskDescription

                AtomicRole atomicRoleToTest=nodeToTest.getRepresentative();
                Atom atomicRoleToTestAssertion=atomicRoleToTest.getRoleAssertion(freshIndividual,freshConstant);
                Set<Atom> perTestAtoms=new HashSet<Atom>(2);
                perTestAtoms.add(atomicRoleAssertion);
                perTestAtoms.add(atomicRoleToTestAssertion);
                if (!tableau.isSatisfiable(false,perTestAtoms,null,null,null,null,new ReasoningTaskDescription(true,"disjointness of {0} and {1}",atomicRole,atomicRoleToTest))) {
                    // disjoint
                    if (direct)
                        result.add(nodeToTest);
                    else
                        result.addAll(nodeToTest.getDescendantNodes());

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        Constant freshConstantB=Constant.createAnonymous("fresh-constant-B");
        Set<Atom> assertions=new HashSet<Atom>();
        assertions.add(atomicRole.getRoleAssertion(freshIndividual,freshConstantA));
        assertions.add(atomicRole.getRoleAssertion(freshIndividual,freshConstantB));
        assertions.add(Atom.create(Inequality.INSTANCE,freshConstantA,freshConstantB));
        return !getTableau().isSatisfiable(false,assertions,null,null,null,null,new ReasoningTaskDescription(true,"functionality of {0}",atomicRole));
    }

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        Individual individual=H(namedIndividual);
        Tableau tableau=getTableau();
        Set<Individual> result=new HashSet<Individual>();
        for (Individual potentiallyDifferentIndividual : m_dlOntology.getAllIndividuals())
            if (isResultRelevantIndividual(potentiallyDifferentIndividual) && !individual.equals(potentiallyDifferentIndividual))
                if (!tableau.isSatisfiable(true,true,Collections.singleton(Atom.create(Equality.INSTANCE,individual,potentiallyDifferentIndividual)),null,null,null,null,new ReasoningTaskDescription(true,"is {0} different from {1}",individual,potentiallyDifferentIndividual)))
                    result.add(potentiallyDifferentIndividual);
        return sortBySameAsIfNecessary(result);
    }

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            m_knownObjectPropertyRelations=new HashMap<AtomicRole, Map<Individual,Set<Individual>>>();
            m_possibleObjectPropertyRelations=new HashMap<AtomicRole, Map<Individual,Set<Individual>>>();
            PropertyRelationFinder propertyRealationshipFinder=new PropertyRelationFinder();
            OWLAxiom[] additionalAxioms=propertyRealationshipFinder.getAxiomsForReadingOffCompexProperties(m_dlOntology.getAllComplexObjectRoles(), m_dlOntology.getAllIndividuals(), getDataFactory());
            Tableau tableau=getTableau(additionalAxioms);
            m_isConsistent=tableau.isSatisfiable(true,true,null,null,null,null,propertyRealationshipFinder.getNodesForIndividuals(),new ReasoningTaskDescription(false,"Precomputing known and possible property relations."));
            propertyRealationshipFinder.readOfPossibleAndKnowRelations(tableau,m_dlOntology.getAllComplexObjectRoles(),m_dlOntology.getAllAtomicObjectRoles(),m_dlOntology.getAllIndividuals(),m_knownObjectPropertyRelations, m_possibleObjectPropertyRelations);
        }
    }

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                    OWLClass pseudoNominal=factory.getOWLClass(IRI.create("internal:pseudo-nominal"));
                    OWLClassExpression allNotPseudoNominal=factory.getOWLObjectAllValuesFrom(property,pseudoNominal.getObjectComplementOf());
                    OWLAxiom allNotPseudoNominalAssertion=factory.getOWLClassAssertionAxiom(allNotPseudoNominal,factory.getOWLNamedIndividual(IRI.create(individual.getIRI())));
                    OWLAxiom pseudoNominalAssertion=factory.getOWLClassAssertionAxiom(pseudoNominal,factory.getOWLNamedIndividual(IRI.create(successorIndividual.getIRI())));
                    Tableau tableau=getTableau(allNotPseudoNominalAssertion,pseudoNominalAssertion);
                    if (!tableau.isSatisfiable(true,true,null,null,null,null,null,new ReasoningTaskDescription(true,"is {0} connected to {1} via {2}",individual,successorIndividual,property))) {
                        Map<Individual,Set<Individual>> newKnownRelations=m_knownObjectPropertyRelations.get(role);
                        if (newKnownRelations==null) {
                            newKnownRelations=new HashMap<Individual, Set<Individual>>();
                            m_knownObjectPropertyRelations.put(role,newKnownRelations);
                        }

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                    OWLClass pseudoNominal=factory.getOWLClass(IRI.create("internal:pseudo-nominal"));
                    OWLClassExpression allNotPseudoNominal=factory.getOWLObjectAllValuesFrom(property,pseudoNominal.getObjectComplementOf());
                    OWLAxiom allNotPseudoNominalAssertion=factory.getOWLClassAssertionAxiom(allNotPseudoNominal,subject);
                    OWLAxiom pseudoNominalAssertion=factory.getOWLClassAssertionAxiom(pseudoNominal,object);
                    Tableau tableau=getTableau(allNotPseudoNominalAssertion,pseudoNominalAssertion);
                    if (!tableau.isSatisfiable(true,true,null,null,null,null,null,new ReasoningTaskDescription(true,"is {0} connected to {1} via {2}",subj,obj,property))) {
                        if (testEvenIfNotPossible) {
                            return true;
                        } else {
                            Map<Individual,Set<Individual>> newKnownRelations=m_knownObjectPropertyRelations.get(role);
                            if (newKnownRelations==null) {

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        checkPreConditions(subject,property);
        if (!m_isConsistent) return true;
        OWLDataFactory factory=getDataFactory();
        OWLAxiom notAssertion=factory.getOWLNegativeDataPropertyAssertionAxiom(property,subject,object);
        Tableau tableau=getTableau(notAssertion);
        return !tableau.isSatisfiable(true,true,null,null,null,null,null,new ReasoningTaskDescription(true,"is {0} connected to {1} via {2}",H(subject),object,H(property)));
    }

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        Tableau tableau=getTableau();
        Set<Individual> result=new HashSet<Individual>();
        result.add(individual);
        for (Individual potentiallySameIndividual : m_dlOntology.getAllIndividuals())
            if (isResultRelevantIndividual(potentiallySameIndividual) && !individual.equals(potentiallySameIndividual))
                if (!tableau.isSatisfiable(true,true,Collections.singleton(Atom.create(Inequality.INSTANCE,individual,potentiallySameIndividual)),null,null,null,null,new ReasoningTaskDescription(true,"is {0} same as {1}",individual,potentiallySameIndividual)))
                    result.add(potentiallySameIndividual);
        return result;
    }

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        for (OWLAxiom ax : anonIndChecker.getAnonIndAxioms())
            if (!ax.accept(this))
                return false;
        for (OWLAxiom ax : anonIndChecker.getAnonNoNamedIndAxioms()) {
            Tableau t=reasoner.getTableau(ax);
            if (t.isSatisfiable(true,true,null,null,null,null,null,new ReasoningTaskDescription(false,"Anonymous individual check: "+ax.toString())))
                return false;
        }
        return true;
    }

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Related Classes of org.semanticweb.HermiT.tableau.ReasoningTaskDescription

org.semanticweb.HermiT.EntailmentChecker

org.semanticweb.HermiT.Reasoner

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