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  1. Mahout
  2. MAHOUT-1757

Small fix in spca formula

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    Details

    • Type: Improvement
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 0.10.2, 0.11.0
    • Component/s: None
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      Description

      there's small error in the spca, Y correction inside power iterations should really be -(s_b-xi'xi*s_b). It doesn't seem to affect much the result but this is a small error (~7-th-8th digit after dot) it introduces when power iterations are used.

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            • Assignee:
              smarthi Suneel Marthi
              Reporter:
              dlyubimov Dmitriy Lyubimov
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              • Created:
                Updated:
                Resolved: