package ca.pfv.spmf.test;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.URL;
import ca.pfv.spmf.algorithms.clustering.distanceFunctions.DistanceCorrelation;
import ca.pfv.spmf.algorithms.clustering.distanceFunctions.DistanceCosine;
import ca.pfv.spmf.algorithms.clustering.distanceFunctions.DistanceEuclidian;
import ca.pfv.spmf.algorithms.clustering.distanceFunctions.DistanceFunction;
import ca.pfv.spmf.algorithms.clustering.distanceFunctions.DistanceJaccard;
import ca.pfv.spmf.algorithms.clustering.distanceFunctions.DistanceManathan;
import ca.pfv.spmf.algorithms.clustering.kmeans.AlgoBisectingKMeans;
import ca.pfv.spmf.algorithms.clustering.kmeans.AlgoKMeans;
/**
* Example of how to use the Bisecting-KMeans algorithm, in source code.
*/
public class MainTestBisectingKMeans_saveToFile {
public static void main(String []args) throws NumberFormatException, IOException{
String input = fileToPath("configKmeans.txt");
String output = ".//output.txt";
// we request 3 clusters
int k=3;
// the iter parameter specify how much times the algorithm should
// repeat a split to keep the best split. If it is set to a high value
// it should provide better results but it should be more slow.
// Splits are evaluated using the Squared Sum of Errors (SSE).
int iter = 10;
// Here we specify that we want to use the euclidian distance
DistanceFunction distanceFunction = new DistanceEuclidian();
// Alternative distance functions are also available such as:
// DistanceFunction distanceFunction = new DistanceManathan();
// DistanceFunction distanceFunction = new DistanceCosine();
// DistanceFunction distanceFunction = new DistanceCorrelation();
// DistanceFunction distanceFunction = new DistanceJaccard();
// Apply the algorithm
AlgoBisectingKMeans algo = new AlgoBisectingKMeans();
algo.runAlgorithm(input, k, distanceFunction, iter);
algo.printStatistics();
algo.saveToFile(output);
}
public static String fileToPath(String filename) throws UnsupportedEncodingException{
URL url = MainTestBisectingKMeans_saveToFile.class.getResource(filename);
return java.net.URLDecoder.decode(url.getPath(),"UTF-8");
}
}