Takuya Kitazawa created HIVEMALL-162:
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Summary: 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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