Mahout
  1. Mahout
  2. MAHOUT-797

MapReduce SSVD: provide alternative B-pipeline per B=R' ^{-1} Y'A

    Details

    • Type: Improvement Improvement
    • Status: Closed
    • Priority: Major Major
    • Resolution: Won't Fix
    • Affects Version/s: 0.5, 0.6
    • Fix Version/s: None
    • Component/s: None
    • Labels:
      None

      Description

      Since alternative flow using Cholesky decomposition is extremely easy to add to existing computations of BB', I am thinking of just adding an option that chooses between B-pipeline with QR step and B-pipeline with Y'Y-Cholesky step.

      Ongoing work and some initial code (Y'Y step) is here https://github.com/dlyubimov/mahout-commits/tree/MAHOUT-797.

      I also want to fix what's left unfixed in MAHOUT-638.

      1. MAHOUT-797.pdf
        216 kB
        Dmitriy Lyubimov

        Issue Links

          Activity

          Sebastian Schelter made changes -
          Fix Version/s Backlog [ 12318886 ]
          Dmitriy Lyubimov made changes -
          Status Resolved [ 5 ] Closed [ 6 ]
          Dmitriy Lyubimov made changes -
          Status Open [ 1 ] Resolved [ 5 ]
          Resolution Won't Fix [ 2 ]
          Dmitriy Lyubimov made changes -
          Status In Progress [ 3 ] Open [ 1 ]
          Gavin made changes -
          Link This issue depends upon MAHOUT-790 [ MAHOUT-790 ]
          Gavin made changes -
          Link This issue depends on MAHOUT-790 [ MAHOUT-790 ]
          Gavin made changes -
          Link This issue depends upon MAHOUT-792 [ MAHOUT-792 ]
          Gavin made changes -
          Link This issue depends on MAHOUT-792 [ MAHOUT-792 ]
          Dmitriy Lyubimov made changes -
          Link This issue blocks MAHOUT-817 [ MAHOUT-817 ]
          Dmitriy Lyubimov made changes -
          Link This issue blocks MAHOUT-817 [ MAHOUT-817 ]
          Dmitriy Lyubimov made changes -
          Fix Version/s Backlog [ 12318886 ]
          Dmitriy Lyubimov made changes -
          Fix Version/s 0.6 [ 12316364 ]
          Affects Version/s 0.6 [ 12316364 ]
          Dmitriy Lyubimov made changes -
          Attachment MAHOUT-797.pdf [ 12493978 ]
          Dmitriy Lyubimov made changes -
          Status Open [ 1 ] In Progress [ 3 ]
          Dmitriy Lyubimov made changes -
          Link This issue depends on MAHOUT-790 [ MAHOUT-790 ]
          Dmitriy Lyubimov made changes -
          Affects Version/s 0.5 [ 12315255 ]
          Fix Version/s 0.6 [ 12316364 ]
          Dmitriy Lyubimov made changes -
          Assignee Dmitriy Lyubimov [ dlyubimov ]
          Dmitriy Lyubimov made changes -
          Description Since alternative flow using Cholesky decomposition is extremely easy to add to existing computations of BB', I am thinking of just adding an option that chooses between B-pipeline with QR step and B-pipeline with Y'Y-Cholesky step.

          I also want to fix what's left unfixed in MAHOUT-638.
          Since alternative flow using Cholesky decomposition is extremely easy to add to existing computations of BB', I am thinking of just adding an option that chooses between B-pipeline with QR step and B-pipeline with Y'Y-Cholesky step.

          Ongoing work and some initial code (Y'Y step) is here https://github.com/dlyubimov/mahout-commits/tree/MAHOUT-797.

          I also want to fix what's left unfixed in MAHOUT-638.
          Dmitriy Lyubimov made changes -
          Field Original Value New Value
          Link This issue depends on MAHOUT-792 [ MAHOUT-792 ]
          Dmitriy Lyubimov created issue -

            People

            • Assignee:
              Dmitriy Lyubimov
              Reporter:
              Dmitriy Lyubimov
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              Dates

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                Updated:
                Resolved:

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