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[DL-Learner SVN] SF.net SVN: dl-learner:[1017] trunk/src/dl-learner/org/dllearner
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From: <jen...@us...> - 2008-07-24 11:06:49
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Revision: 1017
http://dl-learner.svn.sourceforge.net/dl-learner/?rev=1017&view=rev
Author: jenslehmann
Date: 2008-07-24 11:06:45 +0000 (Thu, 24 Jul 2008)
Log Message:
-----------
- bug fix in evaluated description comparator
- sample script cleanup
Modified Paths:
--------------
trunk/src/dl-learner/org/dllearner/scripts/Sample.java
trunk/src/dl-learner/org/dllearner/utilities/owl/EvaluatedDescriptionComparator.java
Modified: trunk/src/dl-learner/org/dllearner/scripts/Sample.java
===================================================================
--- trunk/src/dl-learner/org/dllearner/scripts/Sample.java 2008-07-24 09:36:02 UTC (rev 1016)
+++ trunk/src/dl-learner/org/dllearner/scripts/Sample.java 2008-07-24 11:06:45 UTC (rev 1017)
@@ -18,11 +18,9 @@
package org.dllearner.scripts;
import java.io.File;
-import java.net.MalformedURLException;
-import java.net.URL;
-import java.util.HashSet;
+import java.io.IOException;
+import java.text.DecimalFormat;
import java.util.List;
-import java.util.Set;
import java.util.SortedSet;
import java.util.TreeSet;
@@ -32,49 +30,41 @@
import org.apache.log4j.Logger;
import org.apache.log4j.SimpleLayout;
import org.dllearner.algorithms.refexamples.ExampleBasedROLComponent;
+import org.dllearner.core.ComponentInitException;
import org.dllearner.core.ComponentManager;
+import org.dllearner.core.EvaluatedDescription;
import org.dllearner.core.KnowledgeSource;
import org.dllearner.core.LearningAlgorithm;
import org.dllearner.core.LearningProblem;
+import org.dllearner.core.LearningProblemUnsupportedException;
import org.dllearner.core.ReasonerComponent;
import org.dllearner.core.ReasoningService;
-import org.dllearner.core.owl.Description;
import org.dllearner.kb.OWLFile;
import org.dllearner.learningproblems.PosNegDefinitionLP;
-import org.dllearner.learningproblems.PosNegLP;
import org.dllearner.reasoning.FastInstanceChecker;
-import org.dllearner.utilities.JamonMonitorLogger;
-import org.dllearner.utilities.datastructures.SetManipulation;
+import org.dllearner.utilities.Files;
-// TODO COMMENT !!! added a sample java call class for the dl-learner (as a
-// possible entry point for tool developers)
+import com.jamonapi.MonitorFactory;
+
+/**
+ * Sample script showing how to use DL-Learner. Provides an entry point for tool
+ * developers.
+ *
+ * @author Sebastian Hellmann
+ * @author Jens Lehmann
+ *
+ */
public class Sample {
private static Logger logger = Logger.getRootLogger();
+ private static DecimalFormat df = new DecimalFormat();
- String owlfile = "";
+ public static void main(String[] args) throws IOException, ComponentInitException,
+ LearningProblemUnsupportedException {
- // examples
- SortedSet<String> posExamples = new TreeSet<String>();
-
- SortedSet<String> negExamples = new TreeSet<String>();
-
- /**
- * @param args
- */
- public static void main(String[] args) {
- System.out.println("Start");
-
- // create logger (a simple logger which outputs
- // its messages to the console)
+ // create logger (configure this to your needs)
SimpleLayout layout = new SimpleLayout();
- FileAppender fileAppender = null;
- ;
- try {
- fileAppender = new FileAppender(layout, "the_log.txt", false);
- } catch (Exception e) {
- e.printStackTrace();
- }
+ FileAppender fileAppender = new FileAppender(layout, "log/sample_log.txt", false);
ConsoleAppender consoleAppender = new ConsoleAppender(layout);
logger.removeAllAppenders();
@@ -82,127 +72,86 @@
logger.addAppender(fileAppender);
logger.setLevel(Level.DEBUG);
- Sample s = new Sample();
+ // OWL file containing background knowledge
+ String owlFile = "examples/trains/trains.owl";
- s.owlfile = "examples/trains/trains.owl";
+ // examples
+ SortedSet<String> posExamples = new TreeSet<String>();
+ posExamples.add("http://example.com/foo#east1");
+ posExamples.add("http://example.com/foo#east2");
+ posExamples.add("http://example.com/foo#east3");
+ posExamples.add("http://example.com/foo#east4");
+ posExamples.add("http://example.com/foo#east5");
- s.posExamples = new TreeSet<String>();
- s.negExamples = new TreeSet<String>();
+ SortedSet<String> negExamples = new TreeSet<String>();
+ negExamples.add("http://example.com/foo#west6");
+ negExamples.add("http://example.com/foo#west7");
+ negExamples.add("http://example.com/foo#west8");
+ negExamples.add("http://example.com/foo#west9");
+ negExamples.add("http://example.com/foo#west10");
- /* Examples */
- s.posExamples.add("http://example.com/foo#east1");
- s.posExamples.add("http://example.com/foo#east2");
- s.posExamples.add("http://example.com/foo#east3");
- s.posExamples.add("http://example.com/foo#east4");
- s.posExamples.add("http://example.com/foo#east5");
-
- s.negExamples.add("http://example.com/foo#west6");
- s.negExamples.add("http://example.com/foo#west7");
- s.negExamples.add("http://example.com/foo#west8");
- s.negExamples.add("http://example.com/foo#west9");
- s.negExamples.add("http://example.com/foo#west10");
-
- List<Description> conceptresults = s.learn();
+ List<EvaluatedDescription> results = learn(owlFile, posExamples, negExamples, 5);
int x = 0;
- for (Description description : conceptresults) {
- if (x >= 5)
- break;
- System.out
- .println(description.toManchesterSyntaxString(null, null));
+ for (EvaluatedDescription ed : results) {
+ System.out.println("solution: " + x);
+ System.out.println(" description: \t"
+ + ed.getDescription().toManchesterSyntaxString(null, null));
+ System.out.println(" accuracy: \t" + df.format(ed.getAccuracy() * 100) + "%");
+ System.out.println();
x++;
}
- System.out.println("Finished");
- JamonMonitorLogger.printAllSortedByLabel();
-
+ Files.createFile(new File("log/jamon_sample.html"), MonitorFactory.getReport());
}
- public List<Description> learn() {
+ public static List<EvaluatedDescription> learn(String owlFile, SortedSet<String> posExamples,
+ SortedSet<String> negExamples, int maxNrOfResults) throws ComponentInitException,
+ LearningProblemUnsupportedException {
logger.info("Start Learning with");
logger.info("positive examples: \t" + posExamples.size());
logger.info("negative examples: \t" + negExamples.size());
- // Components
+ // the component manager is the central object to create
+ // and configure components
ComponentManager cm = ComponentManager.getInstance();
- LearningAlgorithm la = null;
- ReasoningService rs = null;
- LearningProblem lp = null;
- KnowledgeSource ks = null;
- try {
- Set<KnowledgeSource> sources = new HashSet<KnowledgeSource>();
- ks = cm.knowledgeSource(OWLFile.class);
+ // knowledge source
+ KnowledgeSource ks = cm.knowledgeSource(OWLFile.class);
+ String fileURL = new File(owlFile).toURI().toString();
+ cm.applyConfigEntry(ks, "url", fileURL);
- // there are probably better ways, but this works
- File f = new File(this.owlfile);
- URL url = null;
- try {
- url = new URL("file://" + f.getAbsolutePath());
+ // reasoner
+ ReasonerComponent r = cm.reasoner(FastInstanceChecker.class, ks);
+ ReasoningService rs = cm.reasoningService(r);
- } catch (MalformedURLException e) {
- e.printStackTrace();
- }
- cm.applyConfigEntry(ks, "url", url.toString());
+ // learning problem
+ LearningProblem lp = cm.learningProblem(PosNegDefinitionLP.class, rs);
+ cm.applyConfigEntry(lp, "positiveExamples", posExamples);
+ cm.applyConfigEntry(lp, "negativeExamples", negExamples);
- ReasonerComponent r = new FastInstanceChecker(sources);
- rs = new ReasoningService(r);
- // System.out.println("satisfy: "+rs.isSatisfiable());
+ // learning algorithm
+ LearningAlgorithm la = cm.learningAlgorithm(ExampleBasedROLComponent.class, lp, rs);
+ cm.applyConfigEntry(la, "useAllConstructor", false);
+ cm.applyConfigEntry(la, "useExistsConstructor", true);
+ cm.applyConfigEntry(la, "useCardinalityRestrictions", false);
+ cm.applyConfigEntry(la, "useNegation", false);
+ cm.applyConfigEntry(la, "writeSearchTree", false);
+ cm.applyConfigEntry(la, "searchTreeFile", "log/searchTree.txt");
+ cm.applyConfigEntry(la, "replaceSearchTree", true);
+ cm.applyConfigEntry(la, "noisePercentage", 0.0);
- lp = new PosNegDefinitionLP(rs);
- lp = new PosNegDefinitionLP(rs);
+ // all components need to be initialised before they can be used
+ ks.init();
+ r.init();
+ lp.init();
+ la.init();
- // This method is a workaround, it should be like the two commented
- // lines below
- ((PosNegLP) lp).setPositiveExamples(SetManipulation
- .stringToInd(this.posExamples));
- ((PosNegLP) lp).setNegativeExamples(SetManipulation
- .stringToInd(this.negExamples));
- // cm.applyConfigEntry(lp,"positiveExamples",this.posExamples);
- // cm.applyConfigEntry(lp,"negativeExamples",this.negExamples);
-
- la = cm.learningAlgorithm(ExampleBasedROLComponent.class, lp, rs);
-
- logger.debug("start learning");
-
- // KNOWLEDGESOURCE
- //
-
- // LEARNINGALGORITHM
- cm.applyConfigEntry(la, "useAllConstructor", false);
- cm.applyConfigEntry(la, "useExistsConstructor", true);
- cm.applyConfigEntry(la, "useCardinalityRestrictions", false);
- cm.applyConfigEntry(la, "useNegation", false);
-
- cm.applyConfigEntry(la, "writeSearchTree", false);
- cm.applyConfigEntry(la, "searchTreeFile", "log/searchtree.txt");
- cm.applyConfigEntry(la, "replaceSearchTree", true);
- // cm.applyConfigEntry(la,"noisePercentage",noise);
-
- /*
- * if(ignoredConcepts.size()>0)
- * cm.applyConfigEntry(la,"ignoredConcepts",ignoredConcepts);
- */
-
- // initialization
- ks.init();
- sources.add(ks);
- r.init();
- lp.init();
- la.init();
-
- la.start();
- // Statistics.addTimeCollecting(sc.getTime());
- // Statistics.addTimeLearning(sc.getTime());
-
- return la.getCurrentlyBestDescriptions();
- // return la.getCurrentlyBestEvaluatedDescriptions();
-
- } catch (Exception e) {
- e.printStackTrace();
- }
- return null;
-
+ // start learning algorithm
+ logger.debug("start learning");
+ la.start();
+
+ return la.getCurrentlyBestEvaluatedDescriptions(maxNrOfResults);
}
}
Modified: trunk/src/dl-learner/org/dllearner/utilities/owl/EvaluatedDescriptionComparator.java
===================================================================
--- trunk/src/dl-learner/org/dllearner/utilities/owl/EvaluatedDescriptionComparator.java 2008-07-24 09:36:02 UTC (rev 1016)
+++ trunk/src/dl-learner/org/dllearner/utilities/owl/EvaluatedDescriptionComparator.java 2008-07-24 11:06:45 UTC (rev 1017)
@@ -43,16 +43,16 @@
double acc1 = ed1.getAccuracy();
double acc2 = ed2.getAccuracy();
if(acc1 > acc2)
+ return -1;
+ else if(acc1 < acc2)
return 1;
- else if(acc1 < acc2)
- return -1;
else {
int length1 = ed1.getDescriptionLength();
int length2 = ed2.getDescriptionLength();
if(length1 < length2)
+ return -1;
+ else if(length1 > length2)
return 1;
- else if(length1 > length2)
- return -1;
else
return cc.compare(ed1.getDescription(), ed2.getDescription());
}
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