do Cluster with Weka - Java Machine Learning AI

Java examples for Machine Learning AI:weka

  1. HOME
  2. Java
  3. Machine Learning AI
  4. weka

Description

do Cluster with Weka

Demo Code



import weka.clusterers.ClusterEvaluation;
import weka.clusterers.EM;
import weka.core.Instances;
import weka.core.Utils;
import weka.core.converters.ConverterUtils.DataSource;


public class WekaCluster {
    public static void main(String[] args) throws Exception {
        DataSource source = new DataSource(
                "bank-train.arff");
        Instances instancesTrain = source.getDataSet(); 

        source = new DataSource(
                "bank-test.arff");
        Instances instancesTest = source.getDataSet(); 
        String[] options = Utils.splitOptions("-I 100");
        EM cluster = new EM();
        cluster.setOptions(options);/*from w  ww. ja  v a 2 s.  c  o m*/
        cluster.buildClusterer(instancesTrain);

        ClusterEvaluation eval = new ClusterEvaluation();
        eval.setClusterer(cluster);
        eval.evaluateClusterer(instancesTest);

        System.out.println(eval.getNumClusters());
        System.out.println(eval.clusterResultsToString());

    }
}

Related Tutorials