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[DL-Learner SVN] SF.net SVN: dl-learner: [317] trunk
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From: <jen...@us...> - 2007-12-03 17:58:29
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Revision: 317
http://dl-learner.svn.sourceforge.net/dl-learner/?rev=317&view=rev
Author: jenslehmann
Date: 2007-12-03 09:58:20 -0800 (Mon, 03 Dec 2007)
Log Message:
-----------
- changed some option names, added default values and explanations
- created simple.conf example (simple entry example for learning on SPARQL endpoints)
Modified Paths:
--------------
trunk/src/dl-learner/org/dllearner/kb/SparqlEndpointRestructured.java
Added Paths:
-----------
trunk/examples/sparql/simple.conf
Added: trunk/examples/sparql/simple.conf
===================================================================
--- trunk/examples/sparql/simple.conf (rev 0)
+++ trunk/examples/sparql/simple.conf 2007-12-03 17:58:20 UTC (rev 317)
@@ -0,0 +1,49 @@
+/**
+ * Simple example for using a SPARQL Endpoint as background
+ * knowledge.
+ *
+ * solutions:
+ * http://dbpedia.org/class/yago/Adult109605289
+ * http://dbpedia.org/class/yago/Female109619168
+ * http://dbpedia.org/class/yago/Scientist110560637
+ */
+
+// recursion depth of extraction algorithm
+sparql2.recursionDepth = 2;
+
+// list of ignored roles
+sparql2.predList = {
+ "http://www.w3.org/2004/02/skos/core",
+ "http://www.w3.org/2002/07/owl#sameAs",
+ "http://xmlns.com/foaf/0.1/",
+ "http://dbpedia.org/property/reference",
+ "http://dbpedia.org/property/website",
+ "http://dbpedia.org/property/wikipage"
+};
+
+// list of ignored objects
+sparql2.objList = {
+ "http://dbpedia.org/resource/Category:Wikipedia_",
+ "http://dbpedia.org/resource/Category:Articles_",
+ "http://xmlns.com/foaf/0.1/",
+ "http://upload.wikimedia.org/wikipedia/commons",
+ "http://upload.wikimedia.org/wikipedia",
+ "http://www.geonames.org",
+ "http://www.w3.org/2006/03/wn/wn20/instances/synset",
+ "http://www4.wiwiss.fu-berlin.de/flickrwrappr",
+ "http://www.w3.org/2004/02/skos/core"
+};
+
+// use DBpedia endpoint
+import("http://dbpedia.openlinksw.com:8890/sparql","SPARQL2");
+
+// the set of objects as starting point for fragment selection
+// (should be identical to the set of examples)
+sparql2.instances = {
+ "http://dbpedia.org/resource/Angela_Merkel",
+ "http://dbpedia.org/resource/Gerhard_Schr%C3%B6der"
+};
+
+/** examples **/
++"http://dbpedia.org/resource/Angela_Merkel"
+-"http://dbpedia.org/resource/Gerhard_Schr%C3%B6der"
Modified: trunk/src/dl-learner/org/dllearner/kb/SparqlEndpointRestructured.java
===================================================================
--- trunk/src/dl-learner/org/dllearner/kb/SparqlEndpointRestructured.java 2007-12-03 16:55:16 UTC (rev 316)
+++ trunk/src/dl-learner/org/dllearner/kb/SparqlEndpointRestructured.java 2007-12-03 17:58:20 UTC (rev 317)
@@ -53,11 +53,11 @@
import org.dllearner.reasoning.JenaOWLDIGConverter;
/**
- * Represents a SPARQL Endpoint. TODO: Is it necessary to create a class
- * DBpediaSparqlEndpoint?
+ * Represents a SPARQL Endpoint.
*
* @author Jens Lehmann
* @author Sebastian Knappe
+ * @author Sebastian Hellmann
*/
public class SparqlEndpointRestructured extends KnowledgeSource {
@@ -66,16 +66,16 @@
String host;
private Set<String> instances;
private URL dumpFile;
- private int numberOfRecursions;
+ private int recursionDepth = 2;
private int predefinedFilter = 0;
private int predefinedEndpoint = 0;
private Set<String> predList;
private Set<String> objList;
private Set<String> classList;
- private String format;
- private boolean dumpToFile;
+ private String format = "N-TRIPLES";
+ private boolean dumpToFile = true;
private boolean useLits = false;
- private boolean getAllBackground = false;
+ private boolean getAllSuperClasses = true;
private boolean learnDomain = false;
private String role;
@@ -136,19 +136,19 @@
options.add(new StringConfigOption("host", "host of SPARQL Endpoint"));
options.add(new StringSetConfigOption("instances",
"relevant instances e.g. positive and negative examples in a learning problem"));
- options.add(new IntegerConfigOption("numberOfRecursions",
- "number of Recursions, the Sparql-Endpoint is asked"));
+ options.add(new IntegerConfigOption("recursionDepth",
+ "recursion depth of KB fragment selection", 2));
options.add(new IntegerConfigOption("predefinedFilter", "the mode of the SPARQL Filter"));
options.add(new IntegerConfigOption("predefinedEndpoint", "the mode of the SPARQL Filter"));
- options.add(new StringSetConfigOption("predList", "a predicate list"));
- options.add(new StringSetConfigOption("objList", "an object list"));
- options.add(new StringSetConfigOption("classList", "a class list"));
- options.add(new StringConfigOption("format", "N-TRIPLES or KB format"));
+ options.add(new StringSetConfigOption("predList", "list of all ignored roles"));
+ options.add(new StringSetConfigOption("objList", "list of all ignored objects"));
+ options.add(new StringSetConfigOption("classList", "list of all ignored classes"));
+ options.add(new StringConfigOption("format", "N-TRIPLES or KB format", "N-TRIPLES"));
options.add(new BooleanConfigOption("dumpToFile",
- "wether Ontology from DBPedia is written to a file or not"));
+ "Specifies whether the extracted ontology is written to a file or not.", true));
options.add(new BooleanConfigOption("useLits", "use Literals in SPARQL query"));
- options.add(new BooleanConfigOption("getAllBackground", "get"));
+ options.add(new BooleanConfigOption("getAllSuperClasses", "If true then all superclasses are retrieved until the most general class (owl:Thing) is reached.", true));
options.add(new BooleanConfigOption("learnDomain", "learns the Domain for a Role"));
options.add(new StringConfigOption("role", "role to learn Domain from"));
@@ -177,8 +177,8 @@
host = (String) entry.getValue();
} else if (option.equals("instances")) {
instances = (Set<String>) entry.getValue();
- } else if (option.equals("numberOfRecursions")) {
- numberOfRecursions = (Integer) entry.getValue();
+ } else if (option.equals("recursionDepth")) {
+ recursionDepth = (Integer) entry.getValue();
} else if (option.equals("predList")) {
predList = (Set<String>) entry.getValue();
} else if (option.equals("objList")) {
@@ -195,8 +195,8 @@
dumpToFile = (Boolean) entry.getValue();
} else if (option.equals("useLits")) {
useLits = (Boolean) entry.getValue();
- } else if (option.equals("getAllBackground")) {
- getAllBackground = (Boolean) entry.getValue();
+ } else if (option.equals("getAllSuperClasses")) {
+ getAllSuperClasses = (Boolean) entry.getValue();
} else if (option.equals("learnDomain")) {
learnDomain = (Boolean) entry.getValue();
} else if (option.equals("role")) {
@@ -244,7 +244,7 @@
sqt = new SparqlQueryType("forbid", objList, predList, useLits + "");
}
// give everything to the manager
- m.useConfiguration(sqt, sse, man, numberOfRecursions, getAllBackground);
+ m.useConfiguration(sqt, sse, man, recursionDepth, getAllSuperClasses);
try {
String ont = "";
// used to learn a domain of a role
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