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https://issues.apache.org/jira/browse/SOLR-11338?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Joel Bernstein updated SOLR-11338:
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Attachment: SOLR-11338.patch
> Add Kendall's Tau-b rank and Spearmans rank correlation Stream Evaluators
> -------------------------------------------------------------------------
>
> Key: SOLR-11338
> URL: https://issues.apache.org/jira/browse/SOLR-11338
> Project: Solr
> Issue Type: New Feature
> Security Level: Public(Default Security Level. Issues are Public)
> Reporter: Joel Bernstein
> Assignee: Joel Bernstein
> Fix For: master (8.0), 7.1
>
> Attachments: SOLR-11338.patch
>
>
> Streaming Expressions already supports Pearson's product moment correlation.
> This ticket adds *Kendall's Tau-b rank correlation* and *Spearmans rank
> correlation* Stream Evaluators.
> Functions are backed by Apache Commons Math
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