dl-learner-svn

[DL-Learner SVN] SF.net SVN: dl-learner:[3407] trunk/components-core/src/main/java/org/ dllearner/algorithms/DisjointClassesLearner.java

[<lor...@us...>]

Revision: 3407
          http://dl-learner.svn.sourceforge.net/dl-learner/?rev=3407&view=rev
Author:   lorenz_b
Date:     2011-11-16 12:55:46 +0000 (Wed, 16 Nov 2011)
Log Message:
-----------
Small fix in algorithm.

Modified Paths:
--------------
    trunk/components-core/src/main/java/org/dllearner/algorithms/DisjointClassesLearner.java

Modified: trunk/components-core/src/main/java/org/dllearner/algorithms/DisjointClassesLearner.java
===================================================================
--- trunk/components-core/src/main/java/org/dllearner/algorithms/DisjointClassesLearner.java	2011-11-16 10:03:47 UTC (rev 3406)
+++ trunk/components-core/src/main/java/org/dllearner/algorithms/DisjointClassesLearner.java	2011-11-16 12:55:46 UTC (rev 3407)
@@ -19,7 +19,9 @@
 
 package org.dllearner.algorithms;
 
+import java.net.URL;
 import java.util.ArrayList;
+import java.util.Collections;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
@@ -186,6 +188,14 @@
 		Set<NamedClass> completeDisjointclasses = new TreeSet<NamedClass>(allClasses);
 		completeDisjointclasses.removeAll(class2Count.keySet());
 		
+		//we remove the asserted sublcasses here
+		if(reasoner.isPrepared()){
+			completeDisjointclasses.removeAll(reasoner.getClassHierarchy().getSubClasses(classToDescribe));
+		} else {
+			completeDisjointclasses.removeAll(reasoner.getSubClasses(classToDescribe));
+		}
+		
+		
 		EvaluatedDescription evalDesc;
 		//firstly, create disjoint classexpressions which not occur and give score of 1
 		if(reasoner.isPrepared()){
@@ -208,12 +218,13 @@
 	}
 	
 	public static void main(String[] args) throws Exception{
-		DisjointClassesLearner l = new DisjointClassesLearner(new SparqlEndpointKS(SparqlEndpoint.getEndpointDBpedia()));
-		l.setClassToDescribe(new NamedClass("http://dbpedia.org/ontology/SoccerClub"));
+		DisjointClassesLearner l = new DisjointClassesLearner(new SparqlEndpointKS(new SparqlEndpoint(new URL("http://dbpedia.aksw.org:8902/sparql"),
+				Collections.singletonList("http://dbpedia.org"), Collections.<String>emptyList())));
+		l.setClassToDescribe(new NamedClass("http://dbpedia.org/ontology/ChemicalSubstance"));
 		l.init();
 		l.start();
 		
-		for(EvaluatedAxiom e : l.getCurrentlyBestEvaluatedAxioms(50)){
+		for(EvaluatedAxiom e : l.getCurrentlyBestEvaluatedAxioms(Integer.MAX_VALUE, 0.75)){
 			System.out.println(e);
 		}
 		

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[DL-Learner SVN] SF.net SVN: dl-learner:[3431] trunk/components-core/src/main/java/org/ dllearner/algorithms/DisjointClassesLearner.java

[<lor...@us...>]

Revision: 3431
          http://dl-learner.svn.sourceforge.net/dl-learner/?rev=3431&view=rev
Author:   lorenz_b
Date:     2011-11-23 13:16:44 +0000 (Wed, 23 Nov 2011)
Log Message:
-----------
Added option to return only the most general classes in the disjointness axioms.

Modified Paths:
--------------
    trunk/components-core/src/main/java/org/dllearner/algorithms/DisjointClassesLearner.java

Modified: trunk/components-core/src/main/java/org/dllearner/algorithms/DisjointClassesLearner.java
===================================================================
--- trunk/components-core/src/main/java/org/dllearner/algorithms/DisjointClassesLearner.java	2011-11-23 10:04:53 UTC (rev 3430)
+++ trunk/components-core/src/main/java/org/dllearner/algorithms/DisjointClassesLearner.java	2011-11-23 13:16:44 UTC (rev 3431)
@@ -23,6 +23,7 @@
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.HashMap;
+import java.util.HashSet;
 import java.util.List;
 import java.util.Map;
 import java.util.Map.Entry;
@@ -38,6 +39,7 @@
 import org.dllearner.core.config.ConfigOption;
 import org.dllearner.core.config.NamedClassEditor;
 import org.dllearner.core.owl.Axiom;
+import org.dllearner.core.owl.ClassHierarchy;
 import org.dllearner.core.owl.Description;
 import org.dllearner.core.owl.DisjointClassesAxiom;
 import org.dllearner.core.owl.NamedClass;
@@ -71,6 +73,9 @@
 	private List<EvaluatedDescription> currentlyBestEvaluatedDescriptions;
 	private SortedSet<Description> subClasses;
 	
+	private boolean useWordNetDistance = false;
+	private boolean suggestMostGeneralClasses = true;
+	
 	public DisjointClassesLearner(SparqlEndpointKS ks){
 		this.ks = ks;
 	}
@@ -83,6 +88,22 @@
 		this.classToDescribe = classToDescribe;
 	}
 
+	public boolean isUseWordNetDistance() {
+		return useWordNetDistance;
+	}
+
+	public void setUseWordNetDistance(boolean useWordNetDistance) {
+		this.useWordNetDistance = useWordNetDistance;
+	}
+
+	public boolean isSuggestMostGeneralClasses() {
+		return suggestMostGeneralClasses;
+	}
+
+	public void setSuggestMostGeneralClasses(boolean suggestMostGeneralClasses) {
+		this.suggestMostGeneralClasses = suggestMostGeneralClasses;
+	}
+
 	@Override
 	public void start() {
 		logger.info("Start learning...");
@@ -200,6 +221,11 @@
 		Set<NamedClass> completeDisjointclasses = new TreeSet<NamedClass>(allClasses);
 		completeDisjointclasses.removeAll(class2Count.keySet());
 		
+		//drop all classes which have a super class in this set
+		if(suggestMostGeneralClasses && reasoner.isPrepared()){
+			keepMostGeneralClasses(completeDisjointclasses);
+		}
+		
 		//we remove the asserted subclasses here
 		completeDisjointclasses.removeAll(subClasses);
 		for(Description subClass : subClasses){
@@ -221,9 +247,6 @@
 		for(Entry<NamedClass, Integer> entry : sortByValues(class2Count)){
 //			evalDesc = new EvaluatedDescription(entry.getKey(),
 //					new AxiomScore(1 - (entry.getValue() / (double)all)));
-			System.out.println(entry.getKey());
-			System.out.println(all);
-			System.out.println(entry.getValue());
 			double[] confidenceInterval = Heuristics.getConfidenceInterval95Wald(all, entry.getValue());
 			double accuracy = (confidenceInterval[0] + confidenceInterval[1]) / 2;
 			evalDesc = new EvaluatedDescription(entry.getKey(),
@@ -235,6 +258,13 @@
 		return evalDescs;
 	}
 	
+	private void keepMostGeneralClasses(Set<NamedClass> classes){
+		ClassHierarchy h = reasoner.getClassHierarchy();
+		for(NamedClass nc : new HashSet<NamedClass>(classes)){
+			classes.removeAll(h.getSubClasses(nc));
+		}
+	}
+	
 	public static void main(String[] args) throws Exception{
 		DisjointClassesLearner l = new DisjointClassesLearner(new SparqlEndpointKS(new SparqlEndpoint(new URL("http://dbpedia.aksw.org:8902/sparql"),
 				Collections.singletonList("http://dbpedia.org"), Collections.<String>emptyList())));

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[DL-Learner SVN] SF.net SVN: dl-learner:[3516] trunk/components-core/src/main/java/org/ dllearner/algorithms/DisjointClassesLearner.java

[<lor...@us...>]

Revision: 3516
          http://dl-learner.svn.sourceforge.net/dl-learner/?rev=3516&view=rev
Author:   lorenz_b
Date:     2011-12-28 11:21:46 +0000 (Wed, 28 Dec 2011)
Log Message:
-----------
Some small changes to avoid problems with anonymous classes when running on local model.

Modified Paths:
--------------
    trunk/components-core/src/main/java/org/dllearner/algorithms/DisjointClassesLearner.java

Modified: trunk/components-core/src/main/java/org/dllearner/algorithms/DisjointClassesLearner.java
===================================================================
--- trunk/components-core/src/main/java/org/dllearner/algorithms/DisjointClassesLearner.java	2011-12-28 11:00:47 UTC (rev 3515)
+++ trunk/components-core/src/main/java/org/dllearner/algorithms/DisjointClassesLearner.java	2011-12-28 11:21:46 UTC (rev 3516)
@@ -60,6 +60,7 @@
 import com.hp.hpl.jena.query.ResultSet;
 import com.hp.hpl.jena.rdf.model.Model;
 import com.hp.hpl.jena.rdf.model.ModelFactory;
+import com.hp.hpl.jena.rdf.model.Resource;
 
 /**
  * Learns disjoint classes using SPARQL queries.
@@ -143,7 +144,7 @@
 					subClasses.add(new NamedClass(sub.getURI()));
 				}
 			}
-			for(OntClass sup : cls.listSuperClasses().toSet()){System.out.println(cls.listSuperClasses().toSet());
+			for(OntClass sup : cls.listSuperClasses().toSet()){
 				if(!sup.isAnon()){
 					subClasses.add(new NamedClass(sup.getURI()));
 				}
@@ -151,7 +152,7 @@
 		}
 		
 		if(ks.supportsSPARQL_1_1()){
-			runSPARQL1_0_Mode();
+			runSPARQL1_1_Mode();
 		} else {
 			runSPARQL1_0_Mode();
 		}
@@ -226,9 +227,11 @@
 			ResultSet rs = executeSelectQuery(query);
 			QuerySolution qs;
 			repeat = false;
+			Resource res;
 			while(rs.hasNext()){
-				qs = rs.next();System.out.println(qs);
-				if(qs.getResource("type") != null){
+				qs = rs.next();
+				res = qs.getResource("type");
+				if(res != null && !res.isAnon()){
 					cls = new NamedClass(qs.getResource("type").getURI());
 					int newCnt = qs.getLiteral("count").getInt();
 					oldCnt = result.get(cls);
@@ -302,10 +305,9 @@
 //				Integer all = class2Count.get(classToDescribe);
 				class2Count.remove(classToDescribe);
 				
-				
 		//get complete disjoint classes
 		Set<NamedClass> completeDisjointclasses = new TreeSet<NamedClass>(allClasses);
-		completeDisjointclasses.removeAll(class2Count.keySet());System.out.println(completeDisjointclasses);
+		completeDisjointclasses.removeAll(class2Count.keySet());
 		
 		// we remove the asserted subclasses here
 		completeDisjointclasses.removeAll(subClasses);

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[DL-Learner SVN] SF.net SVN: dl-learner:[4118] trunk/components-core/src/main/java/org/ dllearner/algorithms/DisjointClassesLearner.java

[<lor...@us...>]

Revision: 4118
          http://sourceforge.net/p/dl-learner/code/4118
Author:   lorenz_b
Date:     2013-10-05 09:10:00 +0000 (Sat, 05 Oct 2013)
Log Message:
-----------
Refined disjointness learner.

Modified Paths:
--------------
    trunk/components-core/src/main/java/org/dllearner/algorithms/DisjointClassesLearner.java

Modified: trunk/components-core/src/main/java/org/dllearner/algorithms/DisjointClassesLearner.java
===================================================================
--- trunk/components-core/src/main/java/org/dllearner/algorithms/DisjointClassesLearner.java	2013-10-04 21:00:12 UTC (rev 4117)
+++ trunk/components-core/src/main/java/org/dllearner/algorithms/DisjointClassesLearner.java	2013-10-05 09:10:00 UTC (rev 4118)
@@ -568,9 +568,7 @@
 		
 		for (NamedClass clsA : classes) {
 			for (NamedClass clsB : classes) {
-				if(!clsA.equals(clsB)){
-					axioms.add(computeDisjointess(clsA, clsB));
-				}
+				axioms.add(computeDisjointess(clsA, clsB));
 			}
 		}
 		

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