Examples of org.apache.mahout.h2obindings.H2OBlockMatrix

org.apache.mahout.h2obindings.H2OBlockMatrix
A Matrix implementation to represent a vertical Block of DRM. Creation of the matrix is an O(1) operation with negligible overhead, and will remain so as long as the matrix is only read from (no modifications). On the first modification, create a copy on write Matrix and all further operations happen on this cow matrix. The benefit is, mapBlock() closures which never modify the input matrix save on the copy overhead.

        labels = _labels;
      }


      /** Create H2OBlockMatrix from the partition */
      private Matrix blockify(Chunk chks[]) {
        return new H2OBlockMatrix(chks);
      }


      /** Ingest the output of bmf into the output partition */
      private void deblockify(Matrix out, NewChunk ncs[]) {
        // assert (out.colSize() == ncs.length)

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        labels = _labels;
      }


      /** Create H2OBlockMatrix from the partition */
      private Matrix blockify(Chunk chks[]) {
        return new H2OBlockMatrix(chks);
      }

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Related Classes of org.apache.mahout.h2obindings.H2OBlockMatrix

org.apache.mahout.h2obindings.ops.MapBlock

org.apache.mahout.h2obindings.ops.MRTaskBMF

org.apache.mahout.math.DenseMatrix

org.apache.mahout.math.SparseMatrix

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