Details

    • Type: Improvement
    • Status: Closed
    • Priority: Minor
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 0.4
    • Labels:
      None

      Description

      org.apache.mahout.cf.taste.impl.similarity.UncenteredCosineSimilarity only computes the cosine distance between those components of the vectors where both vectors have a value greater zero.

      This is inconsistent with the definition of the cosine (correct me if I'm wrong) and is inconsistent with the distributed cosine similarity computation.

        Attachments

        1. MAHOUT-389-3.patch
          53 kB
          Sebastian Schelter
        2. MAHOUT-389-2.patch
          53 kB
          Sebastian Schelter
        3. MAHOUT-389.patch
          2 kB
          Sebastian Schelter

          Activity

            People

            • Assignee:
              srowen Sean Owen
              Reporter:
              ssc Sebastian Schelter
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              Dates

              • Created:
                Updated:
                Resolved: