Package org.apache.mahout.math

Examples of org.apache.mahout.math.MatrixWritable.readFields()

74
75
76
77
78
79
80
81
82
83
84
        if (!fs.exists(inverseCovarianceFile.get())) {
          throw new FileNotFoundException(inverseCovarianceFile.get().toString());
        }
        DataInputStream in = fs.open(inverseCovarianceFile.get());
        try {
          inverseCovarianceMatrix.readFields(in);
        } finally {
          in.close();
        }
        this.inverseCovarianceMatrix = inverseCovarianceMatrix.get();
      }
View Full Code Here
77
78
79
80
81
82
83
84
85
86
87
        if (!fs.exists(inverseCovarianceFile.get())) {
          throw new FileNotFoundException(inverseCovarianceFile.get().toString());
        }
        DataInputStream in = fs.open(inverseCovarianceFile.get());
        try {
          inverseCovarianceMatrix.readFields(in);
        } finally {
          Closeables.closeQuietly(in);
        }
        this.inverseCovarianceMatrix = inverseCovarianceMatrix.get();
        Preconditions.checkArgument(this.inverseCovarianceMatrix != null, "inverseCovarianceMatrix not initialized");
View Full Code Here
77
78
79
80
81
82
83
84
85
86
87
        if (!fs.exists(inverseCovarianceFile.get())) {
          throw new FileNotFoundException(inverseCovarianceFile.get().toString());
        }
        DataInputStream in = fs.open(inverseCovarianceFile.get());
        try {
          inverseCovarianceMatrix.readFields(in);
        } finally {
          Closeables.close(in, true);
        }
        this.inverseCovarianceMatrix = inverseCovarianceMatrix.get();
        Preconditions.checkArgument(this.inverseCovarianceMatrix != null, "inverseCovarianceMatrix not initialized");
View Full Code Here
44
45
46
47
48
49
50
51
52
53
54
    vector.write(output);
  }

  static HmmModel deserialize(DataInput input) throws IOException {
    MatrixWritable matrix = new MatrixWritable();
    matrix.readFields(input);
    Matrix emissionMatrix = matrix.get();

    matrix.readFields(input);
    Matrix transitionMatrix = matrix.get();
View Full Code Here
47
48
49
50
51
52
53
54
55
56
57
  static HmmModel deserialize(DataInput input) throws IOException {
    MatrixWritable matrix = new MatrixWritable();
    matrix.readFields(input);
    Matrix emissionMatrix = matrix.get();

    matrix.readFields(input);
    Matrix transitionMatrix = matrix.get();

    VectorWritable vector = new VectorWritable();
    vector.readFields(input);
    Vector initialProbabilities = vector.get();
View Full Code Here
105
106
107
108
109
110
111
112
113
114
115
    // step 1, compute R as in R'R = Y'Y where Y = A \Omega
    for (File file : partsOfA) {
      MatrixWritable m = new MatrixWritable();
      DataInputStream in = new DataInputStream(new FileInputStream(file));
      try {
        m.readFields(in);
      } finally {
        in.close();
      }

      Matrix aI = m.get();
View Full Code Here
128
129
130
131
132
133
134
135
136
137
138
    int ncols = 0;
    for (File file : partsOfA) {
      MatrixWritable m = new MatrixWritable();
      DataInputStream in = new DataInputStream(new FileInputStream(file));
      try {
        m.readFields(in);
      } finally {
        in.close();
      }
      Matrix aI = m.get();
      ncols = Math.max(ncols, aI.columnSize());
View Full Code Here
151
152
153
154
155
156
157
158
159
160
161
    MatrixWritable bTmp = new MatrixWritable();
    for (int j = 0; j < ncols; j += columnsPerSlice) {
      if (bFile(tmpDir, j).exists()) {
        DataInputStream in = new DataInputStream(new FileInputStream(bFile(tmpDir, j)));
        try {
          bTmp.readFields(in);
        } finally {
          in.close();
        }

        b2.assign(bTmp.get().times(bTmp.get().transpose()), Functions.PLUS);
View Full Code Here
171
172
173
174
175
176
177
178
179
180
181
      File bPath = bFile(tmpDir, j);
      if (bPath.exists()) {
        MatrixWritable m = new MatrixWritable();
        DataInputStream in = new DataInputStream(new FileInputStream(bPath));
        try {
          m.readFields(in);
        } finally {
          in.close();
        }
        m.set(l2.solveRight(m.get().transpose()).times(svd.getV()));
        DataOutputStream out = new DataOutputStream(new FileOutputStream(
View Full Code Here
191
192
193
194
195
196
197
198
199
200
201
  public void computeU(Iterable<File> partsOfA, File tmpDir) throws IOException {
    // step 4, compute pieces of U
    for (File file : partsOfA) {
      MatrixWritable m = new MatrixWritable();
      m.readFields(new DataInputStream(new FileInputStream(file)));
      Matrix aI = m.get();

      Matrix y = aI.times(new RandomTrinaryMatrix(seed, aI.numCols(), dim, false));
      Matrix uI = r2.solveRight(y).times(svd.getU());
      m.set(uI);
View Full Code Here
TOP
Copyright © 2018 www.massapi.com. All rights reserved.
All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.