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  1. Mahout
  2. MAHOUT-1255

Change BallKMeans weighting to use log(weight)

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    Details

    • Type: Improvement
    • Status: Closed
    • Priority: Minor
    • Resolution: Fixed
    • Affects Version/s: 0.8
    • Fix Version/s: 0.8
    • Component/s: None
    • Labels:
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      Description

      Weirdness is happening in the reducer when doing k-means++ sampling by weights.

      Change from multiplying the probability with the weight to multiplying by 2 * log(weight).

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            • Assignee:
              dfilimon Dan Filimon
              Reporter:
              dfilimon Dan Filimon
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