コード例 #1
0
  public static void main(String argv[]) {
    modshogun.init_shogun_with_defaults();
    double width = 1.4;
    int size_cache = 10;

    DoubleMatrix traindata_real = Load.load_numbers("../data/fm_train_real.dat");
    DoubleMatrix testdata_real = Load.load_numbers("../data/fm_test_real.dat");

    RealFeatures feats_train = new RealFeatures(traindata_real);
    RealFeatures feats_test = new RealFeatures(testdata_real);

    NormOne preproc = new NormOne();
    preproc.init(feats_train);
    feats_train.add_preprocessor(preproc);
    feats_train.apply_preprocessor();
    feats_test.add_preprocessor(preproc);
    feats_test.apply_preprocessor();

    Chi2Kernel kernel = new Chi2Kernel(feats_train, feats_train, width, size_cache);

    DoubleMatrix km_train = kernel.get_kernel_matrix();
    kernel.init(feats_train, feats_test);
    DoubleMatrix km_test = kernel.get_kernel_matrix();

    System.out.println(km_train.toString());
    System.out.println(km_test.toString());
  }
コード例 #2
0
  public static void main(String argv[]) {
    modshogun.init_shogun_with_defaults();
    int dim = 7;

    DoubleMatrix data = DoubleMatrix.rand(dim, dim);
    RealFeatures feats = new RealFeatures(data);
    DoubleMatrix data_T = data.transpose();
    DoubleMatrix symdata = data.add(data_T);

    int cols = (1 + dim) * dim / 2;
    DoubleMatrix lowertriangle = DoubleMatrix.zeros(1, cols);
    int count = 0;
    for (int i = 0; i < dim; i++) {
      for (int j = 0; j < dim; j++) {
        if (j <= i) {
          lowertriangle.put(0, count++, symdata.get(i, j));
        }
      }
    }

    CustomKernel kernel = new CustomKernel();
    kernel.set_triangle_kernel_matrix_from_triangle(lowertriangle);
    DoubleMatrix km_triangletriangle = kernel.get_kernel_matrix();

    kernel.set_triangle_kernel_matrix_from_full(symdata);
    DoubleMatrix km_fulltriangle = kernel.get_kernel_matrix();

    kernel.set_full_kernel_matrix_from_full(data);
    DoubleMatrix km_fullfull = kernel.get_kernel_matrix();

    modshogun.exit_shogun();
  }
コード例 #3
0
  public static void main(String argv[]) {
    modshogun.init_shogun_with_defaults();

    DoubleMatrix traindata_real = Load.load_numbers("../data/fm_train_real.dat");
    DoubleMatrix testdata_real = Load.load_numbers("../data/fm_test_real.dat");

    RealFeatures feats_train = new RealFeatures(traindata_real);
    RealFeatures feats_test = new RealFeatures(testdata_real);

    EuclideanDistance distance = new EuclideanDistance(feats_train, feats_train);

    DoubleMatrix dm_train = distance.get_distance_matrix();
    distance.init(feats_train, feats_test);
    DoubleMatrix dm_test = distance.get_distance_matrix();

    System.out.println(dm_train.toString());
    System.out.println(dm_test.toString());
  }
コード例 #4
0
  public static void main(String argv[]) {
    modshogun.init_shogun_with_defaults();
    double c = 23;

    DummyFeatures feats_train = new DummyFeatures(10);
    DummyFeatures feats_test = new DummyFeatures(17);

    ConstKernel kernel = new ConstKernel(feats_train, feats_train, c);

    DoubleMatrix km_train = kernel.get_kernel_matrix();

    kernel.init(feats_train, feats_test);
    DoubleMatrix km_test = kernel.get_kernel_matrix();

    System.out.println(km_train.toString());
    System.out.println(km_test.toString());

    modshogun.exit_shogun();
  }