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https://issues.apache.org/jira/browse/MAHOUT-609?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13222569#comment-13222569
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Bala Rajagopal commented on MAHOUT-609:
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Yes, the current patch works only for the recommendeditembased task. Looking at 
the ticket description, I assumed that the RecommenderJob in context is the 
org.apache.mahout.cf.taste.hadoop.item.RecommenderJob (recommendeditembased 
task) and not the als.RecommenderJob. We had a requirement that met the ticket 
description, hence we made the changes and submitted it as a patch. I would 
assume that a new ticket will be created (in the future) when there is a need 
to extend this functionality to the recommendfactorized task.
                
> Add an option to make RecommenderJob write out it's computed item similarities
> ------------------------------------------------------------------------------
>
>                 Key: MAHOUT-609
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-609
>             Project: Mahout
>          Issue Type: Improvement
>          Components: Collaborative Filtering
>    Affects Versions: Backlog
>            Reporter: Sebastian Schelter
>            Assignee: Raphael Cendrillon
>              Labels: patch
>             Fix For: Backlog
>
>         Attachments: MAHOUT-609.patch
>
>
> As RecommenderJob already includes the computation of similar items, we 
> should an add option that makes it write out those similar items in the same 
> format as ItemSimilarityJob does, so that users interested in both 
> recommendations and similar items do not have to run two jobs.

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