tutorial.exampleMIMLInstances.java Source code

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Here is the source code for tutorial.exampleMIMLInstances.java

Source

/*    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 2 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, write to the Free Software
 *    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

package tutorial;

import java.io.File;
import data.Bag;
import data.MIMLInstances;
import data.statistics.MILStatistics;
import data.statistics.MLStatistics;
import mulan.data.InvalidDataFormatException;
import weka.core.Instance;

/**
 * 
 * Class implementing basic handling of MIML datasets.
 * 
 * @author Ana I.Reyes Melero
 * @author Eva Gibaja
 * @author Amelia Zafra
 * @version 20170507
 *
 */

public class exampleMIMLInstances {

    /** Shows the help on command line. */
    public static void showUse() {
        System.out.println("Program parameters:");
        System.out.println("\t-f arffPathFile Name -> path of arff file.");
        System.out.println("\t-x xmlPathFileName -> path of arff file.");
        System.out.println("Example:");
        System.out.println("\tjava -jar example MIMLInstances -f data" + File.separator + "toy.arff -x data"
                + File.separator + "toy.xml");
        System.exit(-1);
    }

    public static void main(String[] args) {

        try {

            // String arffFileName = Utils.getOption("f", args);
            // String xmlFileName = Utils.getOption("x", args);
            // String arffFileName = "data+File.separator+miml_text_data.arff";
            // String xmlFileName = "data+File.separator+miml_text_data.xml";

            String arffFileName = "data" + File.separator + "toy.arff";
            String xmlFileName = "data" + File.separator + "toy.xml";

            // Parameter checking
            if (arffFileName.isEmpty()) {
                System.out.println("Arff pathName must be specified.");
                showUse();
            }
            if (xmlFileName.isEmpty()) {
                System.out.println("Xml pathName must be specified.");
                showUse();
            }

            // Loads the dataset
            System.out.println("Loading the dataset....");
            MIMLInstances mimlDataSet = new MIMLInstances(arffFileName, xmlFileName);

            System.out.println("Number of bags: " + mimlDataSet.getNumBags());
            System.out.println("Number of Instances (bags): " + mimlDataSet.getNumInstances());
            System.out.println("Number of Labels: " + mimlDataSet.getNumLabels());
            System.out.println("Number of Attributes: " + mimlDataSet.getNumAttributes());
            System.out.println("Number of AttributesPerBag: " + mimlDataSet.getNumAttributesInABag());
            System.out
                    .println("Number of AttributesWithRelational: " + mimlDataSet.getNumAttributesWithRelational());

            // Shows all bags in the dataset
            for (int i = 0; i < mimlDataSet.getNumBags(); i++) {
                Bag bag = null;

                // Recover a bag
                bag = mimlDataSet.getBag(i);
                System.out.println("Bag: " + i);
                System.out.println("\tNumInstances: " + bag.getNumInstances());
                System.out.println("\tNumAttributes: " + bag.numAttributes());
                System.out.println("\tAttributesInABag: " + bag.getNumAttributesInABag());
                System.out.println("\tAttributesWithRelational: " + bag.getNumAttributesWithRelational());

                // Shows all instances in the bag
                for (int j = 0; j < bag.getNumInstances(); j++) {
                    // Recovers an instance
                    Instance instance = mimlDataSet.getInstance(i, j);
                    System.out.println("\t\tInstance: " + j + " NumAttributes: " + instance.numAttributes());
                    for (int k = 0; k < instance.numAttributes(); k++)
                        System.out.println("\t\t\tAttribute " + k + ": " + instance.value(k));
                }
            }

            // Shows multi-label metrics
            MLStatistics statsML = new MLStatistics();
            statsML.calculateStats(mimlDataSet);
            System.out.println(statsML.toString());
            System.out.print("\n----------------------------");
            System.out.print("\nCoocurrences - dependences  ");
            System.out.print("\n----------------------------");
            statsML.calculateCoocurrence(mimlDataSet);
            System.out.println(statsML.coocurrenceToString());
            statsML.calculatePhiChi2(mimlDataSet);
            System.out.print("\nPhi correlation matrix");
            System.out.println(statsML.correlationsToString(statsML.getPhi()));
            System.out.print("\nChi correlation matrix");
            System.out.println(statsML.correlationsToString(statsML.getChi2()));
            System.out.println("\nPhi diagram: ");
            statsML.printPhiDiagram(0.05);

            // Shows mil metrics
            MILStatistics statsMIL = new MILStatistics();
            statsMIL.calculateStats(mimlDataSet.getDataSet());
            System.out.println(statsMIL.toString());

        } catch (InvalidDataFormatException e) {
            e.printStackTrace();
        } catch (Exception e) {

            e.printStackTrace();
        }

    }

}