[jira] [Commented] (SPARK-10697) Lift Calculation in Association Rule mining

["Daniel Müller (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-10697?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15469778#comment-15469778 ] 

Daniel Müller commented on SPARK-10697:
---------------------------------------

It really would make sense to add the lift calculation to the Association rule mining, as the lift is one important characteristic number.

lift (X --> Y) = support ( X U Y) / (support (X) x support (Y))

See also https://en.wikipedia.org/wiki/Association_rule_learning#Lift

Could you please re-open the ticket as this feature would be really helpful?

> Lift Calculation in Association Rule mining
> -------------------------------------------
>
>                 Key: SPARK-10697
>                 URL: https://issues.apache.org/jira/browse/SPARK-10697
>             Project: Spark
>          Issue Type: New Feature
>          Components: MLlib
>            Reporter: Yashwanth Kumar
>            Priority: Minor
>
> Lift is to be calculated for Association rule mining in AssociationRules.scala under FPM.
> Lift is a measure of the performance of a  Association rules.
> Adding lift will help to compare the model efficiency.



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