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Posted to dev@mahout.apache.org by "Sean Owen (JIRA)" <ji...@apache.org> on 2011/08/21 21:52:28 UTC
[jira] [Updated] (MAHOUT-709) FP-Growth Redundant patterns
[ https://issues.apache.org/jira/browse/MAHOUT-709?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sean Owen updated MAHOUT-709:
-----------------------------
Fix Version/s: (was: 0.6)
Removing from 0.6 unless a patch is available.
> FP-Growth Redundant patterns
> ----------------------------
>
> Key: MAHOUT-709
> URL: https://issues.apache.org/jira/browse/MAHOUT-709
> Project: Mahout
> Issue Type: Bug
> Components: Frequent Itemset/Association Rule Mining
> Affects Versions: 0.4, 0.5
> Reporter: Yarco Hayduk
> Assignee: Robin Anil
> Labels: fp-growth, frequent, parallel, pattern
> Attachments: SixTransactions.dat, bresult-new.txt, dumpedPatterns, patterns-converted.txt
>
>
> The algorithm outputs more patterns that it is needed.
> I have tested Mahout's PFP-Growth algorithm with the http://www.borgelt.net/fpgrowth.html FP-Growth implementation. This implementation has an option to generate closed patterns too.
> When I filtered out the sub patterns from the output of Parallel FP-Growth I arrived to the same result, as in http://www.borgelt.net/fpgrowth.html
> Succinctly, you are not outputting closed items
> I am attaching the dummy DB along with the output of both algorithms
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