public static void main(String[] args) {
    try {
      SimpleRenderer renderer = new SimpleRenderer();
      renderer.setShortFormProvider(
          new DefaultPrefixManager("http://www.mindswap.org/ontologies/tambis-full.owl#"));
      ToStringRenderer.getInstance().setRenderer(renderer);
      OWLOntologyManager man = OWLManager.createOWLOntologyManager();
      OWLOntology ont =
          man.loadOntology(
              IRI.create(
                  "http://owl.cs.manchester.ac.uk/repository/download?ontology=http://www.cs.manchester.ac.uk/owl/ontologies/tambis-patched.owl"));

      System.out.println("Loaded!");
      OWLReasonerFactory reasonerFactory = PelletReasonerFactory.getInstance();
      OWLReasoner reasoner = reasonerFactory.createNonBufferingReasoner(ont);
      reasoner.getUnsatisfiableClasses();
      ExplanationBasedRootClassFinder rdr =
          new ExplanationBasedRootClassFinder(man, reasoner, reasonerFactory);
      for (OWLClass cls : rdr.getRootUnsatisfiableClasses()) System.out.println("ROOT! " + cls);
    } catch (TimeOutException e) {
      e.printStackTrace();
    } catch (ReasonerInterruptedException e) {
      e.printStackTrace();
    } catch (OWLOntologyCreationException e) {
      e.printStackTrace();
    }
  }
Beispiel #2
0
  public boolean isDomainOrRangeOfObjectProperty(OWLClass clase, OWLObjectProperty prop) {

    for (OWLClass owlClass1 : _reasoner.getObjectPropertyDomains(prop, false).getFlattened()) {
      if (owlClass1.getIRI().equals(clase.getIRI())) {
        Log.d(
            TAG,
            "<isDomainOrRangeOfObjectProperty> "
                + clase.getIRI().getRemainder().get()
                + " dominio o rango de "
                + prop.getIRI().getRemainder().get()
                + "? SI!");
        return true;
      }
    }
    for (OWLClass owlClass1 : _reasoner.getObjectPropertyRanges(prop, false).getFlattened()) {
      if (owlClass1.getIRI().equals(clase.getIRI())) {
        Log.d(
            TAG,
            "<isDomainOrRangeOfObjectProperty> "
                + clase.getIRI().getRemainder().get()
                + " dominio o rango de "
                + prop.getIRI().getRemainder().get()
                + "? SI!");
        return true;
      }
    }
    Log.d(
        TAG,
        "<isDomainOrRangeOfObjectProperty> "
            + clase.getIRI().getRemainder().get()
            + " dominio o rango de "
            + prop.getIRI().getRemainder().get()
            + "? NO");
    return false;
  }
 public void classifyOntology(OWLOntology ontology, OWLReasonerFactory factory) {
   ToStringRenderer.getInstance().setRenderer(new ManchesterOWLSyntaxOWLObjectRendererImpl());
   OWLReasoner reasoner = factory.createNonBufferingReasoner(ontology);
   // reasoner.precomputeInferences(InferenceType.values());
   long time = System.currentTimeMillis();
   boolean isConsistent = reasoner.isConsistent();
   int numOfUnsatClasses = reasoner.getUnsatisfiableClasses().getEntitiesMinusBottom().size();
   time = System.currentTimeMillis() - time;
   DLExpressivityChecker checker = new DLExpressivityChecker(Collections.singleton(ontology));
   String e = checker.getDescriptionLogicName();
   String name = ontology.getOntologyID().getOntologyIRI().getFragment();
   logger.info(
       "ontology: "
           + name
           + ", reasoner: "
           + factory.getReasonerName()
           + ", expressivity: "
           + e
           + ", consistent: "
           + isConsistent
           + ", unsat classes: "
           + numOfUnsatClasses
           + ", time: "
           + time);
 }
Beispiel #4
0
 private void classifyWithSnorocket(OWLOntology ontology) {
   System.out.println("\nUsing Snorocket...");
   long startTime = System.nanoTime();
   SnorocketReasonerFactory srf = new SnorocketReasonerFactory();
   OWLReasoner snorocketReasoner = srf.createReasoner(ontology);
   snorocketReasoner.precomputeInferences(InferenceType.CLASS_HIERARCHY);
   snorocketReasoner.dispose();
   System.out.println("Time taken (secs): " + Util.getElapsedTimeSecs(startTime));
 }
Beispiel #5
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 private void classifyWithJFact(OWLOntology ontology) {
   System.out.println("\nUsing JFact ...");
   long startTime = System.nanoTime();
   OWLReasonerFactory reasonerFactory = new JFactFactory();
   OWLReasoner jfactReasoner = reasonerFactory.createReasoner(ontology);
   jfactReasoner.precomputeInferences(InferenceType.CLASS_HIERARCHY);
   jfactReasoner.dispose();
   System.out.println("Time taken (secs): " + Util.getElapsedTimeSecs(startTime));
 }
Beispiel #6
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 private Set<String> getSuperClasses(OWLReasoner reasoner, OWLClass cl, OWLClass owlThing) {
   Set<String> pset = new HashSet<String>();
   Set<OWLClass> reasonerSuperClasses = reasoner.getSuperClasses(cl, false).getFlattened();
   // add cl itself to S(X) computed by reasoner. That is missing
   // in its result.
   reasonerSuperClasses.add(cl);
   reasonerSuperClasses.add(owlThing);
   // adding equivalent classes -- they are not considered if asked for superclasses
   Iterator<OWLClass> iterator = reasoner.getEquivalentClasses(cl).iterator();
   while (iterator.hasNext()) reasonerSuperClasses.add(iterator.next());
   for (OWLClass scl : reasonerSuperClasses) pset.add(scl.toString());
   return pset;
 }
Beispiel #7
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 public Set<OWLClass> getObjectPropertyRange(OWLObjectProperty prop) {
   Set<OWLClass> classSet = new HashSet<OWLClass>();
   for (OWLClass clase : _reasoner.getObjectPropertyRanges(prop, true).getFlattened()) {
     classSet.add(clase);
   }
   return classSet;
 }
 private void rebuild() {
   typeNodes.clear();
   if (reasoner != null) {
     Set<OWLOntology> importsClosure = reasoner.getRootOntology().getImportsClosure();
     for (OWLOntology ont : importsClosure) {
       for (OWLClass cls : ont.getClassesInSignature()) {
         final Set<OWLNamedIndividual> inds =
             reasoner.getInstances(cls, showDirect).getFlattened();
         if (!inds.isEmpty()) {
           typeNodes.put(cls, new HashSet<OWLObject>(inds));
         }
       }
     }
   }
   fireHierarchyChanged();
 }
 @Override
 public void dispose() {
   if (reasoner != null) {
     reasoner.dispose();
     reasoner = null;
   }
 }
Beispiel #10
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 public Set<OWLObjectProperty> getObjectPropertiesByDomainAndRange(
     OWLClass domain, OWLClass range) {
   Set<OWLObjectProperty> propSet = new HashSet<OWLObjectProperty>();
   for (OWLObjectProperty prop : _ontology.getObjectPropertiesInSignature()) {
     for (OWLClass owlClass : _reasoner.getObjectPropertyDomains(prop, true).getFlattened()) {
       if (owlClass.equals(domain)) {
         for (OWLClass owlClass2 : _reasoner.getObjectPropertyRanges(prop, true).getFlattened()) {
           if (owlClass2.equals(range)) {
             propSet.add(prop);
           }
         }
       }
     }
   }
   return propSet;
 }
 public Set<OWLNamedIndividual> getInstances(String classExpressionString, boolean direct) {
   if (classExpressionString.trim().length() == 0) {
     return Collections.emptySet();
   }
   OWLClassExpression classExpression = parser.parseClassExpression(classExpressionString);
   NodeSet<OWLNamedIndividual> individuals = reasoner.getInstances(classExpression, direct);
   return individuals.getFlattened();
 }
 public Set<OWLClass> getSubClasses(String classExpressionString, boolean direct) {
   if (classExpressionString.trim().length() == 0) {
     return Collections.emptySet();
   }
   OWLClassExpression classExpression = parser.parseClassExpression(classExpressionString);
   NodeSet<OWLClass> subClasses = reasoner.getSubClasses(classExpression, direct);
   return subClasses.getFlattened();
 }
Beispiel #13
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 /** Release the reasoner */
 public void disposeReasoner() {
   synchronized (reasonerMutex) {
     if (reasoner != null) {
       reasoner.dispose();
       reasoner = null;
     }
   }
 }
Beispiel #14
0
 public Set<OWLClass> getObjectPropertyDomain(Set<OWLObjectProperty> propSet) {
   Set<OWLClass> classSet = new HashSet<OWLClass>();
   for (OWLObjectProperty prop : propSet) {
     for (OWLClass clase : _reasoner.getObjectPropertyDomains(prop, true).getFlattened()) {
       classSet.add(clase);
     }
   }
   return classSet;
 }
Beispiel #15
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 /** Only call within a {@link #moduleReasonerMutex} synchronized block!! */
 private void _internalDisposeModuleReasonerAndListener() {
   if (moduleReasoner != null) {
     moduleReasoner.dispose();
     moduleReasoner = null;
   }
   if (moduleListener != null) {
     aboxOntology.getOWLOntologyManager().removeOntologyChangeListener(moduleListener);
     moduleListener = null;
   }
 }
Beispiel #16
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 private void compareClassificationResults(
     OWLOntology ontology, OWLReasoner reasoner, Jedis resultStore, Jedis idReader)
     throws Exception {
   Set<OWLClass> classes = ontology.getClassesInSignature();
   Pipeline resultPipeline = resultStore.pipelined();
   double classCount = 0;
   int multiplier = 1;
   double totalCount = 0;
   for (OWLClass cl : classes) {
     classCount++;
     double classProgress = (classCount / classes.size()) * 100;
     Set<OWLClass> reasonerSuperclasses = reasoner.getSuperClasses(cl, false).getFlattened();
     // add cl itself to S(X) computed by reasoner. That is missing
     // in its result.
     reasonerSuperclasses.add(cl);
     // adding equivalent classes -- they are not considered if asked for superclasses
     Iterator<OWLClass> iterator = reasoner.getEquivalentClasses(cl).iterator();
     while (iterator.hasNext()) reasonerSuperclasses.add(iterator.next());
     String classToCheckID = conceptToID(cl.toString(), idReader);
     List<Response<Double>> responseList = new ArrayList<Response<Double>>();
     for (OWLClass scl : reasonerSuperclasses) {
       String key = conceptToID(scl.toString(), idReader);
       responseList.add(resultPipeline.zscore(key, classToCheckID));
     }
     resultPipeline.sync();
     double hitCount = 0;
     for (Response<Double> response : responseList) {
       if (response.get() != null) hitCount++;
     }
     totalCount += (hitCount / reasonerSuperclasses.size());
     if (classProgress >= (5 * multiplier)) {
       System.out.println(
           "% of no. of classes looked at: "
               + classProgress
               + "\tProgress %: "
               + (totalCount / classCount) * 100);
       multiplier++;
     }
   }
   double progress = totalCount / classes.size();
   System.out.println("\nProgress %: " + (progress * 100));
 }
Beispiel #17
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 public Set<OWLDataProperty> getDataPropertiesByDomain(OWLClass domain) {
   Set<OWLDataProperty> propSet = new HashSet<OWLDataProperty>();
   Set<OWLDataProperty> objProps = _ontology.getDataPropertiesInSignature();
   for (OWLDataProperty prop : objProps) {
     for (OWLClass owlClass : _reasoner.getDataPropertyDomains(prop, true).getFlattened()) {
       if (owlClass.equals(domain)) {
         propSet.add(prop);
       }
     }
   }
   return propSet;
 }
 public Set<OWLObject> getParents(OWLObject object) {
   if (reasoner != null && typeNodes.containsKey(object)) {
     return Collections.emptySet();
   } else {
     OWLNamedIndividual ind = (OWLNamedIndividual) object;
     Set<OWLObject> clses = new HashSet<OWLObject>();
     for (OWLClass cls : reasoner.getTypes(ind, showDirect).getFlattened()) {
       clses.add(cls);
     }
     return clses;
   }
 }
 public Set<OWLClass> getEquivalentClasses(String classExpressionString) {
   if (classExpressionString.trim().length() == 0) {
     return Collections.emptySet();
   }
   OWLClassExpression classExpression = parser.parseClassExpression(classExpressionString);
   Node<OWLClass> equivalentClasses = reasoner.getEquivalentClasses(classExpression);
   Set<OWLClass> result = null;
   if (classExpression.isAnonymous()) {
     result = equivalentClasses.getEntities();
   } else {
     result = equivalentClasses.getEntitiesMinus(classExpression.asOWLClass());
   }
   return result;
 }
Beispiel #20
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  public void getELKIncrementalRuntime(String baseOnt, String ontDir) throws Exception {
    GregorianCalendar start = new GregorianCalendar();
    OWLOntologyManager manager = OWLManager.createOWLOntologyManager();
    IRI documentIRI = IRI.create(new File(baseOnt));
    OWLOntology baseOntology = manager.loadOntology(documentIRI);
    System.out.println("Logical axioms: " + baseOntology.getLogicalAxiomCount());
    //		findDataHasValueAxiom(baseOntology.getAxioms(AxiomType.SUBCLASS_OF));

    OWLReasonerFactory reasonerFactory = new ElkReasonerFactory();
    OWLReasoner reasoner = reasonerFactory.createReasoner(baseOntology);
    reasoner.precomputeInferences(InferenceType.CLASS_HIERARCHY);
    File[] files = new File(ontDir).listFiles();
    int count = 0;
    OWLOntologyManager manager2 = OWLManager.createOWLOntologyManager();
    addTripsBaseOntologies(manager2);
    for (File file : files) {
      System.out.println("File name: " + file.getName());
      documentIRI = IRI.create(file);
      OWLOntology ontology = manager2.loadOntology(documentIRI);
      Set<OWLLogicalAxiom> axioms = ontology.getLogicalAxioms();
      //	    	findDataHasValueAxiom(ontology.getAxioms(AxiomType.SUBCLASS_OF));
      manager.addAxioms(baseOntology, axioms);
      reasoner.flush();
      System.out.println("Logical axioms: " + baseOntology.getLogicalAxiomCount());

      // From the ELK wiki, it seems ABox reasoning will trigger TBox reasoning
      reasoner.precomputeInferences(InferenceType.CLASS_ASSERTIONS);

      manager2.removeOntology(ontology);
      count++;
      System.out.println("Done with " + count);
      //	    	if(count == 5)
      //	    		break;
    }
    reasoner.dispose();
    System.out.println("Time taken (millis): " + Util.getElapsedTime(start));
  }
Beispiel #21
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 private static void print(Node<OWLClass> parent, OWLReasoner reasoner, int depth) {
   // We don't want to print out the bottom node (containing owl:Nothing and unsatisfiable classes)
   // because this would appear as a leaf node everywhere
   if (parent.isBottomNode()) {
     return;
   }
   // Print an indent to denote parent-child relationships
   printIndent(depth);
   // Now print the node (containing the child classes)
   printNode(parent);
   for (Node<OWLClass> child : reasoner.getSubClasses(parent.getRepresentativeElement(), true)) {
     // Recurse to do the children.  Note that we don't have to worry about cycles as there
     // are non in the inferred class hierarchy graph - a cycle gets collapsed into a single
     // node since each class in the cycle is equivalent.
     print(child, reasoner, depth + 1);
   }
 }
Beispiel #22
0
  /**
   * <b>Motivation</b>: OWL reasoners do not return superclass expressions If we want to find all
   * class expressions that may hold for a class then we must pre-coordinate all possible
   * expressions within the subset of OWL we care about. <br>
   * This class generates all satisfiable class expressions of the form r some c (for the
   * cross-product of R x C), as well as all class expressions that have been used (which may
   * include nested expressions)
   *
   * <p>The results are stored in queryClassMap
   *
   * @param precomputePropertyClassCombinations
   */
  @Deprecated
  private void generateQueryOntology(boolean precomputePropertyClassCombinations) {
    queryClassMap = new HashMap<OWLClass, OWLClassExpression>();

    getReasoner().flush();

    if (precomputePropertyClassCombinations) {
      LOG.debug("Precomputing all OP x Class combos");
      // cross-product of P x C
      // TODO - reflexivity and local reflexivity?
      for (OWLObjectProperty p : tboxOntology.getObjectPropertiesInSignature(true)) {
        LOG.debug(" materializing P some C for P=:" + p);
        for (OWLClass c : tboxOntology.getClassesInSignature(true)) {
          OWLObjectSomeValuesFrom r = getOWLDataFactory().getOWLObjectSomeValuesFrom(p, c);
          // LOG.debug(" QMAP:"+r);
          addClassExpressionToQueryMap(r);
        }
      }
    }

    // all expressions used in ontology
    for (OWLOntology ont : tboxOntology.getImportsClosure()) {
      LOG.debug("Finding all nested anonymous expressions");
      for (OWLAxiom ax : ont.getAxioms()) {
        // TODO - check if this is the nest closure. ie (r some (r2 some (r3 some ...)))
        for (OWLClassExpression x : ax.getNestedClassExpressions()) {
          if (x.isAnonymous()) {
            // LOG.debug(" QMAP+:"+x);
            addClassExpressionToQueryMap(x);
          }
        }
      }
    }
    if (LOG.isDebugEnabled()) {
      for (OWLOntology ont : collectedAxioms.keySet()) {
        LOG.debug("TOTAL axioms in QMAP: " + collectedAxioms.get(ont).size());
      }
    }
    LOG.debug("Adding collected axioms");
    addCollectedAxioms();
    LOG.debug("Flushing reasoner...");
    reasoner.flush();
    LOG.debug("Flushed reasoner");
  }
Beispiel #23
0
  public static void main(String[] args) {

    try {
      // Create our ontology manager in the usual way.
      OWLOntologyManager manager = OWLManager.createOWLOntologyManager();

      // Load a copy of the people+pets ontology.  We'll load the ontology from the web (it's
      // acutally located
      // in the TONES ontology repository).
      IRI docIRI = IRI.create(DOCUMENT_IRI);
      // We load the ontology from a document - our IRI points to it directly
      OWLOntology ont = manager.loadOntologyFromOntologyDocument(docIRI);
      System.out.println("Loaded " + ont.getOntologyID());

      // We need to create an instance of OWLReasoner.  An OWLReasoner provides the basic
      // query functionality that we need, for example the ability obtain the subclasses
      // of a class etc.  To do this we use a reasoner factory.

      // Create a reasoner factory.  In this case, we will use HermiT, but we could also
      // use FaCT++ (http://code.google.com/p/factplusplus/) or
      // Pellet(http://clarkparsia.com/pellet)
      // Note that (as of 03 Feb 2010) FaCT++ and Pellet OWL API 3.0.0 compatible libraries are
      // expected to be available in the near future).

      // For now, we'll use HermiT
      // HermiT can be downloaded from http://hermit-reasoner.com
      // Make sure you get the HermiT library and add it to your class path.  You can then
      // instantiate the HermiT reasoner factory:
      // Comment out the first line below and uncomment the second line below to instantiate
      // the HermiT reasoner factory.  You'll also need to import the
      // org.semanticweb.HermiT.Reasoner
      // package.
      OWLReasonerFactory reasonerFactory = null;
      //            OWLReasonerFactory reasonerFactory = new Reasoner.ReasonerFactory();

      // We'll now create an instance of an OWLReasoner (the implementation being provided by HermiT
      // as
      // we're using the HermiT reasoner factory).  The are two categories of reasoner, Buffering
      // and
      // NonBuffering.  In our case, we'll create the buffering reasoner, which is the default kind
      // of reasoner.
      // We'll also attach a progress monitor to the reasoner.  To do this we set up a configuration
      // that
      // knows about a progress monitor.

      // Create a console progress monitor.  This will print the reasoner progress out to the
      // console.
      ConsoleProgressMonitor progressMonitor = new ConsoleProgressMonitor();
      // Specify the progress monitor via a configuration.  We could also specify other setup
      // parameters in
      // the configuration, and different reasoners may accept their own defined parameters this
      // way.
      OWLReasonerConfiguration config = new SimpleConfiguration(progressMonitor);
      // Create a reasoner that will reason over our ontology and its imports closure.  Pass in the
      // configuration.
      OWLReasoner reasoner = reasonerFactory.createReasoner(ont, config);

      // Ask the reasoner to do all the necessary work now
      reasoner.precomputeInferences();

      // We can determine if the ontology is actually consistent (in this case, it should be).
      boolean consistent = reasoner.isConsistent();
      System.out.println("Consistent: " + consistent);
      System.out.println("\n");

      // We can easily get a list of unsatisfiable classes.  (A class is unsatisfiable if it
      // can't possibly have any instances).  Note that the getUnsatisfiableClasses method
      // is really just a convenience method for obtaining the classes that are equivalent
      // to owl:Nothing.  In our case there should be just one unsatisfiable class - "mad_cow"
      // We ask the reasoner for the unsatisfiable classes, which returns the bottom node
      // in the class hierarchy (an unsatisfiable class is a subclass of every class).
      Node<OWLClass> bottomNode = reasoner.getUnsatisfiableClasses();
      // This node contains owl:Nothing and all the classes that are equivalent to owl:Nothing -
      // i.e. the unsatisfiable classes.
      // We just want to print out the unsatisfiable classes excluding owl:Nothing, and we can
      // used a convenience method on the node to get these
      Set<OWLClass> unsatisfiable = bottomNode.getEntitiesMinusBottom();
      if (!unsatisfiable.isEmpty()) {
        System.out.println("The following classes are unsatisfiable: ");
        for (OWLClass cls : unsatisfiable) {
          System.out.println("    " + cls);
        }
      } else {
        System.out.println("There are no unsatisfiable classes");
      }
      System.out.println("\n");

      // Now we want to query the reasoner for all descendants of vegetarian.  Vegetarians are
      // defined in the
      // ontology to be animals that don't eat animals or parts of animals.
      OWLDataFactory fac = manager.getOWLDataFactory();
      // Get a reference to the vegetarian class so that we can as the reasoner about it.
      // The full IRI of this class happens to be:
      // <http://owl.man.ac.uk/2005/07/sssw/people#vegetarian>
      OWLClass vegPizza =
          fac.getOWLClass(IRI.create("http://owl.man.ac.uk/2005/07/sssw/people#vegetarian"));

      // Now use the reasoner to obtain the subclasses of vegetarian.
      // We can ask for the direct subclasses of vegetarian or all of the (proper) subclasses of
      // vegetarian.
      // In this case we just want the direct ones (which we specify by the "true" flag).
      NodeSet<OWLClass> subClses = reasoner.getSubClasses(vegPizza, true);

      // The reasoner returns a NodeSet, which represents a set of Nodes.
      // Each node in the set represents a subclass of vegetarian pizza.  A node of classes contains
      // classes,
      // where each class in the node is equivalent. For example, if we asked for the
      // subclasses of some class A and got back a NodeSet containing two nodes {B, C} and {D}, then
      // A would have
      // two proper subclasses.  One of these subclasses would be equivalent to the class D, and the
      // other would
      // be the class that is equivalent to class B and class C.

      // In this case, we don't particularly care about the equivalences, so we will flatten this
      // set of sets and print the result
      Set<OWLClass> clses = subClses.getFlattened();
      System.out.println("Subclasses of vegetarian: ");
      for (OWLClass cls : clses) {
        System.out.println("    " + cls);
      }
      System.out.println("\n");

      // In this case, we should find that the classes, cow, sheep and giraffe are vegetarian.  Note
      // that in this
      // ontology only the class cow had been stated to be a subclass of vegetarian.  The fact that
      // sheep and
      // giraffe are subclasses of vegetarian was implicit in the ontology (through other things we
      // had said)
      // and this illustrates why it is important to use a reasoner for querying an ontology.

      // We can easily retrieve the instances of a class.  In this example we'll obtain the
      // instances of
      // the class pet.  This class has a full IRI of <http://owl.man.ac.uk/2005/07/sssw/people#pet>

      // We need to obtain a reference to this class so that we can ask the reasoner about it.
      OWLClass country =
          fac.getOWLClass(IRI.create("http://owl.man.ac.uk/2005/07/sssw/people#pet"));
      // Ask the reasoner for the instances of pet
      NodeSet<OWLNamedIndividual> individualsNodeSet = reasoner.getInstances(country, true);
      // The reasoner returns a NodeSet again.  This time the NodeSet contains individuals.
      // Again, we just want the individuals, so get a flattened set.
      Set<OWLNamedIndividual> individuals = individualsNodeSet.getFlattened();
      System.out.println("Instances of pet: ");
      for (OWLNamedIndividual ind : individuals) {
        System.out.println("    " + ind);
      }
      System.out.println("\n");

      // Again, it's worth noting that not all of the individuals that are returned were explicitly
      // stated
      // to be pets.

      // Finally, we can ask for the property values (property assertions in OWL speak) for a given
      // individual
      // and property.
      // Let's get the property values for the individual Mick, the full IRI of which is
      // <http://owl.man.ac.uk/2005/07/sssw/people#Mick>

      // Get a reference to the individual Mick
      OWLNamedIndividual mick =
          fac.getOWLNamedIndividual(IRI.create("http://owl.man.ac.uk/2005/07/sssw/people#Mick"));

      // Let's get the pets of Mick
      // Get hold of the has_pet property which has a full IRI of
      // <http://owl.man.ac.uk/2005/07/sssw/people#has_pet>
      OWLObjectProperty hasPet =
          fac.getOWLObjectProperty(IRI.create("http://owl.man.ac.uk/2005/07/sssw/people#has_pet"));

      // Now ask the reasoner for the has_pet property values for Mick
      NodeSet<OWLNamedIndividual> petValuesNodeSet = reasoner.getObjectPropertyValues(mick, hasPet);
      Set<OWLNamedIndividual> values = petValuesNodeSet.getFlattened();
      System.out.println("The has_pet property values for Mick are: ");
      for (OWLNamedIndividual ind : values) {
        System.out.println("    " + ind);
      }

      // Notice that Mick has a pet Rex, which wasn't asserted in the ontology.

      // Finally, let's print out the class hierarchy.
      // Get hold of the top node in the class hierarchy (containing owl:Thing)
      // Now print the hierarchy out
      Node<OWLClass> topNode = reasoner.getTopClassNode();
      print(topNode, reasoner, 0);

    } catch (UnsupportedOperationException exception) {
      System.out.println("Unsupported reasoner operation.");
    } catch (OWLOntologyCreationException e) {
      System.out.println("Could not load the pizza ontology: " + e.getMessage());
    }
  }
Beispiel #24
0
  public Set<NamingIssue> detectNonMatchingChildIssues(OWLOntology ontology, boolean directChild) {
    long start = System.currentTimeMillis();

    // get SubClass - SuperClass pairs
    Set<NamingIssue> nonMatchingChildren = new HashSet<NamingIssue>();
    if (directChild) {
      Set<OWLSubClassOfAxiom> axioms = ontology.getAxioms(AxiomType.SUBCLASS_OF);
      for (OWLSubClassOfAxiom ax : axioms) {

        OWLClassExpression subClass = ax.getSubClass();
        OWLClassExpression superClass = ax.getSuperClass();

        if (!subClass.isAnonymous() && !superClass.isAnonymous()) {
          String subClassURI = subClass.asOWLClass().toStringID();
          String superClassURI = superClass.asOWLClass().toStringID();

          if (ignoreSingleTokenSubClasses && !singleToken(subClassURI)) {
            String subClassHead = getHeadNoun(subClassURI);
            String superClassHead = getHeadNoun(superClassURI);

            boolean matching =
                subClassHead.equals(superClassHead) || isHypernymOf(superClassHead, subClassHead);

            if (!matching) {
              String newClassURI = buildNewURI(subClassURI, superClassHead);
              nonMatchingChildren.add(
                  new NamingIssue(
                      subClassURI,
                      superClassURI,
                      new RenamingInstruction(subClassURI, newClassURI)));
            }
          }
        }
      }
    } else {
      OWLReasonerFactory reasonerFactory = PelletReasonerFactory.getInstance();
      OWLReasoner reasoner = reasonerFactory.createNonBufferingReasoner(ontology);

      Set<OWLClass> classes = ontology.getClassesInSignature();

      for (OWLClass cls : classes) {
        Set<OWLClass> superClasses = reasoner.getSuperClasses(cls, false).getFlattened();
        superClasses.remove(OWL_THING);
        for (OWLClass superClass : superClasses) {
          String subClassURI = cls.asOWLClass().toStringID();
          String superClassURI = superClass.asOWLClass().toStringID();

          if (ignoreSingleTokenSubClasses && !singleToken(subClassURI)) {
            String subClassHead = getHeadNoun(subClassURI);
            String superClassHead = getHeadNoun(superClassURI);

            boolean matching =
                subClassHead.equals(superClassHead) || isHypernymOf(superClassHead, subClassHead);

            if (!matching) {
              String newClassURI = buildNewURI(subClassURI, superClassHead);
              nonMatchingChildren.add(
                  new NamingIssue(
                      subClassURI,
                      superClassURI,
                      new RenamingInstruction(subClassURI, newClassURI)));
            }
          }
        }
      }
    }

    long end = System.currentTimeMillis();
    logger.info("Operation took " + (end - start) + "ms");

    return nonMatchingChildren;
  }
 public DLQueryEngine(OWLReasoner reasoner, ShortFormProvider shortFormProvider) {
   this.reasoner = reasoner;
   parser = new DLQueryParser(reasoner.getRootOntology(), shortFormProvider);
 }
Beispiel #26
0
  private void rearrangeAndCompareResults(
      OWLOntology ontology,
      OWLReasoner reasoner,
      Jedis resultStore,
      Jedis resultStore2,
      Jedis idReader)
      throws Exception {
    new ResultRearranger().initializeAndRearrange();
    Set<OWLClass> classes = ontology.getClassesInSignature();
    // rearranged results are in DB-1
    resultStore.select(1);
    double classCount = 0;
    int multiplier = 1;
    int missCount = 0;
    String bottomID = Util.getPackedID(Constants.BOTTOM_ID, EntityType.CLASS);
    System.out.println("Comparing Classes... " + classes.size());
    OWLClass owlThing = ontology.getOWLOntologyManager().getOWLDataFactory().getOWLThing();
    for (OWLClass cl : classes) {
      String classID = conceptToID(cl.toString(), idReader);
      // REL/Pellet doesn't consider individuals i.e. {a} \sqsubseteq \bottom
      // so skipping checking bottom
      if (classID.equals(bottomID)) continue;

      classCount++;
      Set<OWLClass> reasonerSuperClasses = reasoner.getSuperClasses(cl, false).getFlattened();
      // add cl itself to S(X) computed by reasoner. That is missing
      // in its result.
      reasonerSuperClasses.add(cl);
      reasonerSuperClasses.add(owlThing);
      // adding equivalent classes -- they are not considered if asked for superclasses
      Iterator<OWLClass> iterator = reasoner.getEquivalentClasses(cl).iterator();
      while (iterator.hasNext()) reasonerSuperClasses.add(iterator.next());
      Set<String> superClasses = resultStore.smembers(classID);
      if (superClasses.size() == reasonerSuperClasses.size()) {
        compareAndPrintEqualSizedClasses(cl, reasonerSuperClasses, superClasses, idReader);
      } else {
        System.out.println(
            "\n"
                + cl.toString()
                + " -- "
                + superClasses.size()
                + ", "
                + reasonerSuperClasses.size());
        for (OWLClass scl : reasonerSuperClasses) {
          String sclID = conceptToID(scl.toString(), idReader);
          if (!superClasses.contains(sclID)) {
            System.out.print(cl.toString() + " -ne- " + scl.toString());
            System.out.print("  ,  ");
          }
          superClasses.remove(sclID);
        }
        for (String s : superClasses)
          System.out.println("\t -- " + Util.idToConcept(s, idReader) + "(" + s + ")");
        System.out.println();
        missCount++;
      }
    }
    System.out.println("No of classes not equal: " + missCount);

    Set<OWLNamedIndividual> individuals = ontology.getIndividualsInSignature();
    System.out.println("Rearranging individuals...");
    System.out.println("Individuals: " + individuals.size());
    System.out.println("Not checking for individuals...");
    /*
    		rearrangeIndividuals(individuals, resultStore, resultStore2, idReader);
    		int cnt = 0;
    		for(OWLClass cl : classes) {
    			Set<OWLNamedIndividual> instances =
    				reasoner.getInstances(cl, false).getFlattened();
    			Set<String> computedInstances = resultStore2.smembers(
    					conceptToID(cl.toString(), idReader));
    			if(computedInstances.size() == instances.size()) {
    				compareAndPrintEqualSizedIndividuals(cl, instances, computedInstances, idReader);
    			}
    			else {
    				System.out.println(cl.toString() + " -- " +
    						computedInstances.size() + " , " + instances.size());
    				compareAndPrintUnEqualSizedIndividuals(cl, instances, computedInstances, idReader);
    				cnt++;
    			}
    		}
    		System.out.println("No of classes for which individuals didn't match: " + cnt);
    */
    resultStore.select(0);
  }
Beispiel #27
0
 public void updateLsignatureWithUnsatClasses(OWLReasoner reasoner) {
   Set<OWLClass> unsatClasses = reasoner.getBottomClassNode().getEntities();
   if (lSignatureClasses.addAll(unsatClasses)) compSignatureClasses.removeAll(unsatClasses);
 }
  private void computeObjectPropertyHierarchyDepthMetrics() {
    Node<OWLDataProperty> topNode = reasoner.getTopDataPropertyNode();

    super.topDownTraverse(topNode, 0);
  }
Beispiel #29
0
  private void precomputeAndCheckResults(OWLOntology ontology) throws Exception {
    System.out.println("Not Normalizing");

    PropertyFileHandler propertyFileHandler = PropertyFileHandler.getInstance();
    HostInfo resultNodeHostInfo = propertyFileHandler.getResultNode();
    // port: 6489 for snapshot testing
    Jedis resultStore =
        new Jedis(
            resultNodeHostInfo.getHost(), resultNodeHostInfo.getPort(), Constants.INFINITE_TIMEOUT);
    Jedis resultStore2 =
        new Jedis(
            resultNodeHostInfo.getHost(), resultNodeHostInfo.getPort(), Constants.INFINITE_TIMEOUT);
    resultStore2.select(2);
    HostInfo localHostInfo = propertyFileHandler.getLocalHostInfo();
    Jedis localStore = new Jedis(localHostInfo.getHost(), localHostInfo.getPort());
    Set<String> idHosts =
        localStore.zrange(
            AxiomDistributionType.CONCEPT_ID.toString(),
            Constants.RANGE_BEGIN,
            Constants.RANGE_END);
    // currently there is only one ID node
    String[] idHostPort = idHosts.iterator().next().split(":");
    Jedis idReader =
        new Jedis(idHostPort[0], Integer.parseInt(idHostPort[1]), Constants.INFINITE_TIMEOUT);
    GregorianCalendar cal1 = new GregorianCalendar();
    try {
      //		    OWLReasonerFactory reasonerFactory = new ElkReasonerFactory();
      //		    OWLReasoner reasoner = reasonerFactory.createReasoner(ontology);
      //		    reasoner.precomputeInferences(InferenceType.CLASS_HIERARCHY);
      //		    PelletReasoner reasoner = PelletReasonerFactory.getInstance().
      //		    									createReasoner( ontology );
      //		    reasoner.prepareReasoner();

      //	    Reasoner hermitReasoner = new Reasoner(ontology);
      //	    hermitReasoner.precomputeInferences(InferenceType.CLASS_HIERARCHY);

      //	    	OWLReasonerFactory reasonerFactory = new ElkReasonerFactory();
      //		    OWLReasoner reasoner = reasonerFactory.createReasoner(ontology);
      //		    reasoner.precomputeInferences(InferenceType.CLASS_HIERARCHY);

      //		    RELReasonerFactory relfactory = new RELReasonerFactory();
      //		    RELReasoner reasoner = relfactory.createReasoner(ontology);
      //		    reasoner.precomputeInferences(InferenceType.CLASS_HIERARCHY);

      //	    	JcelReasoner reasoner = new JcelReasoner(ontology, false);
      //		    reasoner.precomputeInferences(InferenceType.CLASS_HIERARCHY);

      OWLReasonerFactory reasonerFactory = new ElkReasonerFactory();
      OWLReasoner reasoner = reasonerFactory.createReasoner(ontology);
      reasoner.precomputeInferences(InferenceType.CLASS_HIERARCHY);

      System.out.println("Reasoner completed in (millis): " + Util.getElapsedTime(cal1));

      System.out.println("Comparing results using ELK.....");
      rearrangeAndCompareResults(ontology, reasoner, resultStore, resultStore2, idReader);

      //		    pelletReasoner.dispose();
      //	   		reasonerELK.dispose();
      reasoner.dispose();
    } finally {
      localStore.disconnect();
      resultStore.disconnect();
      resultStore2.disconnect();
      idReader.disconnect();
    }
  }