Examples of de.jungblut.clustering.model.VectorWritable

de.jungblut.clustering.model.VectorWritable
Writable and comparable wrapper for dense vectors.
@author thomas.jungblut @deprecated use de.jungblut.writable.VectorWritable instead, but it is notcompatible to this class here.

      Context context) throws IOException, InterruptedException {


    List<VectorWritable> vectorList = new ArrayList<>();
    DoubleVector newCenter = null;
    for (VectorWritable value : values) {
      vectorList.add(new VectorWritable(value));
      if (newCenter == null)
        newCenter = value.getVector().deepCopy();
      else
        newCenter = newCenter.add(value.getVector());
    }

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        if (!path.getName().equals("_SUCCESS")) {
          LOG.info("FOUND " + path.toString());
          try (SequenceFile.Reader reader = new SequenceFile.Reader(fs, path,
              conf)) {
            ClusterCenter key = new ClusterCenter();
            VectorWritable v = new VectorWritable();
            while (reader.next(key, v)) {
              LOG.info(key + " / " + v);
            }
          }
        }

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  public static void writeExampleVectors(Configuration conf, Path in,
      FileSystem fs) throws IOException {
    try (SequenceFile.Writer dataWriter = SequenceFile.createWriter(fs, conf,
        in, ClusterCenter.class, VectorWritable.class)) {
      dataWriter.append(new ClusterCenter(new VectorWritable(0, 0)),
          new VectorWritable(1, 2));
      dataWriter.append(new ClusterCenter(new VectorWritable(0, 0)),
          new VectorWritable(16, 3));
      dataWriter.append(new ClusterCenter(new VectorWritable(0, 0)),
          new VectorWritable(3, 3));
      dataWriter.append(new ClusterCenter(new VectorWritable(0, 0)),
          new VectorWritable(2, 2));
      dataWriter.append(new ClusterCenter(new VectorWritable(0, 0)),
          new VectorWritable(2, 3));
      dataWriter.append(new ClusterCenter(new VectorWritable(0, 0)),
          new VectorWritable(25, 1));
      dataWriter.append(new ClusterCenter(new VectorWritable(0, 0)),
          new VectorWritable(7, 6));
      dataWriter.append(new ClusterCenter(new VectorWritable(0, 0)),
          new VectorWritable(6, 5));
      dataWriter.append(new ClusterCenter(new VectorWritable(0, 0)),
          new VectorWritable(-1, -23));
    }
  }

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  public static void writeExampleCenters(Configuration conf, Path center,
      FileSystem fs) throws IOException {
    try (SequenceFile.Writer centerWriter = SequenceFile.createWriter(fs, conf,
        center, ClusterCenter.class, IntWritable.class)) {
      final IntWritable value = new IntWritable(0);
      centerWriter.append(new ClusterCenter(new VectorWritable(1, 1)), value);
      centerWriter.append(new ClusterCenter(new VectorWritable(5, 5)), value);
    }
  }

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Related Classes of de.jungblut.clustering.model.VectorWritable

de.jungblut.clustering.mapreduce.KMeansClusteringJob

de.jungblut.clustering.mapreduce.KMeansReducer

de.jungblut.math.dense.DenseDoubleVector

de.jungblut.math.DoubleVector

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