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  1. Solr
  2. SOLR-11863

Add knnRegress Stream Evaluator to support nearest neighbor regression

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    Details

    • Type: New Feature
    • Status: Closed
    • Priority: Major
    • Resolution: Resolved
    • Affects Version/s: None
    • Fix Version/s: 7.5, 8.0
    • Component/s: None
    • Labels:
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      Description

      This ticket adds the knnRegress Stream Evaluator to add support for nearest neighbor regression to the Streaming Expressions machine learning library.

      Sample syntax:

      let(sample=random(collection1, q=":", rows=10000, fl="response_d, filesize_d, service_d"),
          filesizes=col(sample, filesize_d),
          responses=col(sample, response_d),
          serviceLevels=col(sample, service_d),
          observations=transpose(matrix(filesizes, responses)),
          model=knnRegress(observations, serviceLevels, 10),
          prediction=predict(model, array(36365, 645)))

       

        Attachments

        1. SOLR-11863.patch
          9 kB
          Joel Bernstein
        2. SOLR-11863.patch
          14 kB
          Joel Bernstein
        3. SOLR-11863.patch
          21 kB
          Joel Bernstein

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              • Assignee:
                jbernste Joel Bernstein
                Reporter:
                jbernste Joel Bernstein
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                • Created:
                  Updated:
                  Resolved: