added incremental example

src/main/java/mekaexamples/classifiers/JustBuild.java → src/main/java/mekaexamples/classifiers/BuildBatch.java

@@ -13,9 +13,9 @@
  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-/**
- * JustBuild.java
- * Copyright (C) 2016 University of Waikato, Hamilton, NZ
+/*
+ * BuildBatch.java
+ * Copyright (C) 2016-2024 University of Waikato, Hamilton, NZ
  */
 
 package mekaexamples.classifiers;
@@ -33,9 +33,8 @@
  * Note: The dataset must have been prepared for Meka already.
  *
  * @author FracPete (fracpete at waikato dot ac dot nz)
- * @version $Revision$
  */
-public class JustBuild {
+public class BuildBatch {
 
   public static void main(String[] args) throws Exception {
     if (args.length != 1)
@@ -49,5 +48,6 @@ public static void main(String[] args) throws Exception {
     BR classifier = new BR();
     // further configuration of classifier
     classifier.buildClassifier(data);
+    System.out.println(classifier.getModel());
   }
 }

src/main/java/mekaexamples/classifiers/BuildIncremental.java

@@ -0,0 +1,56 @@
+/*
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, either version 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/*
+ * BuildIncremental.java
+ * Copyright (C) 2024 University of Waikato, Hamilton, NZ
+ */
+
+package mekaexamples.classifiers;
+
+import meka.classifiers.multilabel.incremental.BRUpdateable;
+import meka.core.MLUtils;
+import weka.core.Instance;
+import weka.core.Instances;
+import weka.core.converters.ConverterUtils.DataSource;
+
+/**
+ * Builds a BRUpdateable Meka classifier incrementally on a dataset supplied by the user.
+ * <br>
+ * Expected parameters: &lt;dataset&gt;
+ * <br>
+ * Note: The dataset must have been prepared for Meka already.
+ *
+ * @author FracPete (fracpete at waikato dot ac dot nz)
+ */
+public class BuildIncremental {
+
+  public static void main(String[] args) throws Exception {
+    if (args.length != 1)
+      throw new IllegalArgumentException("Required arguments: <dataset>");
+
+    System.out.println("Loading data: " + args[0]);
+    Instances data = DataSource.read(args[0]);
+    MLUtils.prepareData(data);
+
+    System.out.println("Build BRUpdateable classifier");
+    BRUpdateable classifier = new BRUpdateable();
+    // further configuration of classifier
+    classifier.buildClassifier(new Instances(data, 0));
+    for (Instance inst: data)
+      classifier.updateClassifier(inst);
+    System.out.println(classifier.getModel());
+  }
+}