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From "Sean Owen (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (MAHOUT-432) Can add one parameter --itemsFile for org.apache.mahout.cf.taste.hadoop.item.RecommenderJob
Date Mon, 05 Jul 2010 12:02:51 GMT

     [ https://issues.apache.org/jira/browse/MAHOUT-432?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sean Owen resolved MAHOUT-432.
------------------------------

    Resolution: Fixed

Looks good except that I think you don't want to return when the item is not recommendable.
Then nothing would be recommended.

> Can add one parameter --itemsFile for org.apache.mahout.cf.taste.hadoop.item.RecommenderJob

> --------------------------------------------------------------------------------------------
>
>                 Key: MAHOUT-432
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-432
>             Project: Mahout
>          Issue Type: New Feature
>          Components: Collaborative Filtering
>    Affects Versions: 0.4
>            Reporter: Hui Wen Han
>            Assignee: Sean Owen
>            Priority: Minor
>             Fix For: 0.4
>
>         Attachments: mahout_patch_2010075.txt
>
>
> Can add one parameter --itemsFile for org.apache.mahout.cf.taste.hadoop.item.RecommenderJob
?
> --itemsFile some likes the the --usersFile.
> in some case, we want to calculate similarity using all preferences data ,
> but some item in  preferences  are old ,not available,behind the times or retired ,
> we want that those data can not recommend to users, can only recommend user with new
or valid items.
> so we can add on paramete  --itemsFile for RecommenderJob, itemsFile includes all the
new valid items.

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