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Posted to issues@solr.apache.org by "Cassandra Targett (Jira)" <ji...@apache.org> on 2021/08/13 19:58:00 UTC

[jira] [Updated] (SOLR-12647) Add meanSq Stream Evaluator to calculate the mean of squares of a vector

     [ https://issues.apache.org/jira/browse/SOLR-12647?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Cassandra Targett updated SOLR-12647:
-------------------------------------
    Component/s: streaming expressions

> Add meanSq Stream Evaluator to calculate the mean of squares of a vector
> ------------------------------------------------------------------------
>
>                 Key: SOLR-12647
>                 URL: https://issues.apache.org/jira/browse/SOLR-12647
>             Project: Solr
>          Issue Type: New Feature
>          Components: streaming expressions
>            Reporter: Joel Bernstein
>            Priority: Major
>
> This ticket adds the *meanSq* Stream Evaluator which calculates the mean of the squares of vector. This is often used to calculate the mean square error of a regression model



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