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https://issues.apache.org/jira/browse/HIVEMALL-162?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Takuya Kitazawa closed HIVEMALL-162.
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Resolution: Implemented
> Support `l1_normalize` for feature vector
> -----------------------------------------
>
> Key: HIVEMALL-162
> URL: https://issues.apache.org/jira/browse/HIVEMALL-162
> Project: Hivemall
> Issue Type: New Feature
> Reporter: Takuya Kitazawa
> Assignee: Takuya Kitazawa
> Priority: Minor
>
> Similarly to
> {{[l2_normalize|https://github.com/apache/incubator-hivemall/blob/master/core/src/main/java/hivemall/ftvec/scaling/L2NormalizationUDF.java]}}
> UDF, we can support L1 normalization, even though it can be achieved by
> standard HiveQL syntax (i.e.,
> something like {{col / sum(col)}}).
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