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SimpleKMeans.java

gehe zur Dokumentation dieser Datei

/*
 * $Source: /shared/cvsroot/diplom/app/src/java/de/picana/clusterer/SimpleKMeans.java,v $
 * $Author: mstolpe $
 * $Date: 2003/03/08 17:37:26 $
 * $Revision: 1.6 $
 * $Release$ 
 *
 * Created on 10. September 2002, 13:02
 *
 * Copyright 2002 by Marco Stolpe
 */

package de.picana.clusterer;

import de.picana.control.*;

import weka.core.*;
import java.io.*;


public class SimpleKMeans extends Clusterer {

    private weka.clusterers.SimpleKMeans algo;
    private long time_total;
    
    public SimpleKMeans() {
    }
   
    public void buildClusterer(Instances set) throws TaskException {
        try {
            statwriter.println("algo_clusterer_name:SimpleKMeans");
            statwriter.println("algo_clusterer_training_set:" + infile);
            
            algo = new weka.clusterers.SimpleKMeans();
            algo.setNumClusters(num_clusters);
            time_total = System.currentTimeMillis();
            algo.buildClusterer(training_set);
            time_total = System.currentTimeMillis() - time_total;
            statwriter.println("time_clusterer_total:" + time_total);
        } catch (Exception e) {
            throw new TaskException(e.toString());
        }
    }
    
    public void saveModel(String filename) throws TaskException {
        try {
            File model = new File(filename);
            FileOutputStream fos = new FileOutputStream(model);
            ObjectOutputStream out = new ObjectOutputStream(fos);
            
            out.writeInt(algo.numberOfClusters());
            out.writeObject(algo);
            out.close();    
        
        } catch (Exception e) {
            throw new TaskException(e.toString());    
        }
    }
}

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