Ejemplo n.º 1
0
 public static void testGet(Matrix m) {
   int rows = m.rows();
   int cols = m.columns();
   for (int trials = 0; trials < 100; ++trials) {
     int i = (int) (rows * Math.random());
     int j = (int) (cols * Math.random());
     double v = m.get(i, j);
     double r = Math.random();
     m.set(i, j, r);
     m.set(i, j, v);
     assertEquals(v, m.get(i, j), 0.01);
   }
 }
Ejemplo n.º 2
0
  @Test
  public void testNonSquareMatrix() {
    int[][] testInput = {
      {6, 0, 5},
      {0, 1, 1},
      {1, 5, 0},
      {0, 1, 0},
      {1, 5, 7},
      {1, 1, 1}
    };

    double[][] testOutput = {{}};

    double error = .00001;
    Matrix inputMatrix = new YaleSparseMatrix(6, 3);
    for (int row = 0; row < 6; ++row)
      for (int col = 0; col < 3; ++col) inputMatrix.set(row, col, testInput[row][col]);

    Transform transform = new TfIdfTransform();
    Matrix outputMatrix = transform.transform(inputMatrix);
    for (int row = 0; row < 6; ++row) {
      for (int col = 0; col < 3; ++col) System.out.println(outputMatrix.get(row, col));
      // assertEquals(testOutput[row][col],
      //             outputMatrix.get(row, col), error);
    }
  }
Ejemplo n.º 3
0
  @Test
  public void testSparseListMatrix() {
    List<SparseDoubleVector> vectors = new ArrayList<SparseDoubleVector>();
    for (double[] values : VALUES) vectors.add(new CompactSparseVector(values));
    Matrix m = new ListMatrix<SparseDoubleVector>(vectors);
    assertEquals(VALUES.length, m.rows());
    assertEquals(VALUES[0].length, m.columns());
    for (int r = 0; r < m.rows(); ++r)
      for (int c = 0; c < m.columns(); ++c) assertEquals(VALUES[r][c], m.get(r, c), .0001);

    m.set(0, 0, 0);
    assertEquals(0, vectors.get(0).get(0), .0001);

    for (int r = 0; r < m.rows(); ++r) assertEquals(vectors.get(r), m.getRowVector(r));
  }
Ejemplo n.º 4
0
  @Test
  public void testMatrixTransformSize() {
    int[][] testInput = {
      {0, 0, 0, 0, 1, 1, 2, 4, 5, 0},
      {0, 1, 1, 2, 0, 1, 5, 2, 8, 10},
      {1, 5, 0, 0, 1, 0, 6, 3, 7, 9},
      {0, 1, 0, 1, 0, 1, 2, 0, 3, 0},
      {1, 5, 7, 0, 0, 1, 6, 10, 2, 45},
      {1, 1, 1, 1, 1, 1, 1, 1, 1, 1}
    };

    double[][] testOutput = {
      {
        0.00000, 0.00000, 0.00000, 0.00000, 0.17028, 0.10217, 0.04644, 0.10217, 0.09824, 0.00000,
      },
      {
        0.00000, 0.00810, 0.01171, 0.05268, 0.00000, 0.02107, 0.02395, 0.01054, 0.03242, 0.01621,
      },
      {
        0.07438, 0.08582, 0.00000, 0.00000, 0.07438, 0.00000, 0.06086, 0.03347, 0.06008, 0.03090,
      },
      {
        0.00000, 0.03929, 0.00000, 0.12771, 0.00000, 0.10217, 0.04644, 0.00000, 0.05894, 0.00000,
      },
      {
        0.03512, 0.04052, 0.08195, 0.00000, 0.00000, 0.02107, 0.02873, 0.05268, 0.00810, 0.07294,
      },
      {
        -0.03177, -0.00733, -0.01059, -0.02383, -0.03177, -0.01906, -0.00433, -0.00477, -0.00367,
        -0.00147,
      }
    };

    double error = .00001;
    Matrix inputMatrix = new YaleSparseMatrix(6, 10);
    for (int row = 0; row < 6; ++row)
      for (int col = 0; col < 10; ++col) inputMatrix.set(row, col, testInput[row][col]);

    Transform transform = new TfIdfTransform();
    Matrix outputMatrix = transform.transform(inputMatrix);
    for (int row = 0; row < 6; ++row) {
      for (int col = 0; col < 10; ++col)
        assertEquals(testOutput[row][col], outputMatrix.get(row, col), error);
    }
  }