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Posted to dev@mahout.apache.org by "tom pierce (Updated) (JIRA)" <ji...@apache.org> on 2011/12/10 22:00:40 UTC
[jira] [Updated] (MAHOUT-920) Remove a mapreduce job from parallel
FPGrowth workflow
[ https://issues.apache.org/jira/browse/MAHOUT-920?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
tom pierce updated MAHOUT-920:
------------------------------
Attachment: MAHOUT-890.patch
> Remove a mapreduce job from parallel FPGrowth workflow
> ------------------------------------------------------
>
> Key: MAHOUT-920
> URL: https://issues.apache.org/jira/browse/MAHOUT-920
> Project: Mahout
> Issue Type: Improvement
> Components: Frequent Itemset/Association Rule Mining
> Affects Versions: 0.6
> Reporter: tom pierce
> Priority: Minor
> Attachments: MAHOUT-890.patch
>
>
> The transaction sorting job could have been made map-only, and another mapreduce job follows, so it made sense to combine them. It would have been possible to use a ChainMapper approach, but it seemed simpler to fold the functionality into the following mapper (ParallelFPGrowthMapper). The attached patch does just that.
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