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https://issues.apache.org/jira/browse/MAHOUT-1248?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sebastian Schelter resolved MAHOUT-1248.
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    Resolution: Won't Fix
      Assignee: Sebastian Schelter

Dismissing this as discussed on the mailing list.

> Build tools around mahout to use grid search with cross validation to tune 
> hyperparameter lambda
> ------------------------------------------------------------------------------------------------
>
>                 Key: MAHOUT-1248
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-1248
>             Project: Mahout
>          Issue Type: Improvement
>          Components: Collaborative Filtering
>    Affects Versions: 1.0
>            Reporter: Saikat Kanjilal
>            Assignee: Sebastian Schelter
>             Fix For: 1.0
>
>
> The goal of this task is to create tools around mahout to tune the 
> hyperparameter lambda by using grid search with cross validation data.  It'd 
> be good to create a subcomponent of ALS that is strictly geared towards 
> convergence.



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