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Class Summary | |
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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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