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  1. Mahout
  2. MAHOUT-1217

Nearest neighbor searchers sometimes fail to remove points

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 0.8
    • Fix Version/s: 0.8
    • Component/s: Math
    • Labels:
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      Description

      When updating a Centroid in StreamingKMeans, the Centroid needs to be removed and its updated version added.

      When removing points in a searcher that are already there, sometimes the searcher fails to return the closest point (the one being searched for) causing a RuntimeException.

      This has been observed for TF-IDF vectors with SquaredEuclideanDistance and CosineDistance and FastProjectionSearch.

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            • Assignee:
              Unassigned
              Reporter:
              dfilimon Dan Filimon
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                Updated:
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