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| Class Summary | |
|---|---|
| ABtDenseOutJob | Computes ABt products, then first step of QR which is pushed down to the reducer. |
| ABtDenseOutJob.ABtMapper | So, here, i preload A block into memory. |
| ABtDenseOutJob.QRReducer | QR first step pushed down to reducer. |
| ABtJob | Computes ABt products, then first step of QR which is pushed down to the reducer. |
| ABtJob.ABtMapper | So, here, i preload A block into memory. |
| ABtJob.QRReducer | QR first step pushed down to reducer. |
| BtJob | Bt job. |
| BtJob.BtMapper | |
| BtJob.OuterProductCombiner | |
| BtJob.OuterProductReducer | |
| DenseBlockWritable | Ad-hoc substitution for MatrixWritable. |
| Omega | simplistic implementation for Omega matrix in Stochastic SVD method |
| QJob | Compute first level of QHat-transpose blocks. |
| QJob.QMapper | |
| SparseRowBlockAccumulator | Aggregate incoming rows into blocks based on the row number (long). |
| SparseRowBlockWritable | block that supports accumulating rows and their sums , suitable for combiner and reducers of multiplication jobs. |
| SplitPartitionedWritable | a key for vectors allowing to identify them by their coordinates in original split of A. |
| SplitPartitionedWritable.SplitGroupingComparator | |
| SSVDCli | Mahout CLI adapter for SSVDSolver |
| SSVDHelper | set of small file manipulation helpers. |
| SSVDSolver | Stochastic SVD solver (API class). |
| UJob | Computes U=Q*Uhat of SSVD (optionally adding x pow(Sigma, 0.5) ) |
| UJob.UMapper | |
| VJob | |
| VJob.VMapper | |
| YtYJob | Job that accumulates Y'Y output |
| YtYJob.YtYMapper | |
| YtYJob.YtYReducer | |
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