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https://issues.apache.org/jira/browse/MAHOUT-1440?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sebastian Schelter resolved MAHOUT-1440.
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Resolution: Fixed
Assignee: Sebastian Schelter
patch commited with some cosmetic changes, thanks for the contribution
> Add option to set the RNG seed for inital cluster generation in Kmeans/fKmeans
> ------------------------------------------------------------------------------
>
> Key: MAHOUT-1440
> URL: https://issues.apache.org/jira/browse/MAHOUT-1440
> Project: Mahout
> Issue Type: Improvement
> Components: CLI, Clustering
> Affects Versions: 1.0
> Reporter: Andrew Palumbo
> Assignee: Sebastian Schelter
> Priority: Minor
> Labels: reproducibility
> Fix For: 1.0
>
> Attachments: MAHOUT-1440.patch
>
>
> It was noted recently that there should be a way to set a static seed for the
> the initial clusters of Kmeans. In the interests of reproducibility and
> benchmarking, this patch adds an option to set the seed in the RNG used in
> the RandomSeedGenerator.buildRandom() method called from the KmeansDriver and
> FuzzyKMeansDriver.
> I've added in a CLI option -setRandomSeed that when set to the same value
> (with the -k option set) will produce reproducible results from kmeans and
> fkmeans.
> This patch allows the user to set a value. It may make more sense to just
> have an option to set a flag to use the STANDARD_SEED from RandomWrapper.
> I am still feeling my way around the codebase so if this will be useful and
> there need to be any changes let me know.
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