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From "Adam Bozanich (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAHOUT-1158) Migrate/transform IDs from alphanumeric to Long
Date Sat, 09 Mar 2013 00:03:12 GMT

    [ https://issues.apache.org/jira/browse/MAHOUT-1158?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13597709#comment-13597709
] 

Adam Bozanich commented on MAHOUT-1158:
---------------------------------------

patch here: https://github.com/apache/mahout/pull/14
                
> Migrate/transform IDs from alphanumeric to Long
> -----------------------------------------------
>
>                 Key: MAHOUT-1158
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-1158
>             Project: Mahout
>          Issue Type: Improvement
>          Components: Collaborative Filtering
>            Reporter: Adam Bozanich
>            Assignee: Sean Owen
>            Priority: Minor
>
> Generating item similarities from user interactions or preferences doesn't necessarily
require user IDs to remain consistent or even recoverable.
> ItemSimilarityJob could have a flag that transforms the IDs automatically.
> Use case:  Input data is a collection of (cookie,product_id); cookie is alphanumeric.
 ItemSimilarityJob should be able to consume this data without needing the user to preprocess
it.

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