Package org.apache.mahout.clustering.spectral.MatrixDiagonalizeJob

Examples of org.apache.mahout.clustering.spectral.MatrixDiagonalizeJob.MatrixDiagonalizeMapper.map()

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    // perform the mapping
    for (int i = 0; i < RAW_DIMENSIONS; i++) {
      RandomAccessSparseVector toAdd = new RandomAccessSparseVector(RAW_DIMENSIONS);
      toAdd.assign(RAW[i]);
      mapper.map(new IntWritable(i), new VectorWritable(toAdd), context);
    }
   
    // check the number of the results
    assertEquals("Number of map results", RAW_DIMENSIONS,
        writer.getValue(NullWritable.get()).size());
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    // perform the mapping
    for (int i = 0; i < RAW_DIMENSIONS; i++) {
      RandomAccessSparseVector toAdd = new RandomAccessSparseVector(RAW_DIMENSIONS);
      toAdd.assign(RAW[i]);
      mapper.map(new IntWritable(i), new VectorWritable(toAdd), mapContext);
    }
   
    // now perform the reduction
    MatrixDiagonalizeReducer reducer = new MatrixDiagonalizeReducer();
    DummyRecordWriter<NullWritable, VectorWritable> redWriter = new
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