Examples with DeterministicAnnealing smile.clustering.DeterministicAnnealing used on opensource projects

Example 1 with DeterministicAnnealing

use of smile.clustering.DeterministicAnnealing in project smile by haifengl.

the class DeterministicAnnealingDemo method learn.

@Override
public JComponent learn() {
    try {
        alpha = Double.parseDouble(alphaField.getText().trim());
        if (alpha <= 0 || alpha >= 1) {
            JOptionPane.showMessageDialog(this, "Invalid alpha: " + alpha, "Error", JOptionPane.ERROR_MESSAGE);
            return null;
        }
    } catch (Exception e) {
        JOptionPane.showMessageDialog(this, "Invalid K: " + alphaField.getText(), "Error", JOptionPane.ERROR_MESSAGE);
        return null;
    }
    long clock = System.currentTimeMillis();
    DeterministicAnnealing annealing = new DeterministicAnnealing(dataset[datasetIndex], clusterNumber, alpha);
    System.out.format("Deterministic Annealing clusterings %d samples in %dms\n", dataset[datasetIndex].length, System.currentTimeMillis() - clock);
    PlotCanvas plot = ScatterPlot.plot(annealing.centroids(), '@');
    for (int k = 0; k < clusterNumber; k++) {
        if (annealing.getClusterSize()[k] > 0) {
            double[][] cluster = new double[annealing.getClusterSize()[k]][];
            for (int i = 0, j = 0; i < dataset[datasetIndex].length; i++) {
                if (annealing.getClusterLabel()[i] == k) {
                    cluster[j++] = dataset[datasetIndex][i];
                }
            }
            plot.points(cluster, pointLegend, Palette.COLORS[k % Palette.COLORS.length]);
        }
    }
    plot.points(annealing.centroids(), '@');
    return plot;
}