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https://issues.apache.org/jira/browse/MAHOUT-667?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sebastian Schelter resolved MAHOUT-667.
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Resolution: Fixed
Fix Version/s: (was: 0.4)
0.5
Assignee: Sebastian Schelter (was: Sean Owen)
Committed with some style changes and small refactorings.
Moved the serialization code to the strategy to allow for easier customization,
removed temporary file writing for the sake of simplicity.
> Persistent storage of factorizations in SVDRecommender
> ------------------------------------------------------
>
> Key: MAHOUT-667
> URL: https://issues.apache.org/jira/browse/MAHOUT-667
> Project: Mahout
> Issue Type: Improvement
> Components: Collaborative Filtering
> Affects Versions: 0.5
> Reporter: Chris Newell
> Assignee: Sebastian Schelter
> Priority: Minor
> Fix For: 0.5
>
> Attachments: persistent_svd.patch, persistent_svd_v2.patch
>
> Original Estimate: 336h
> Remaining Estimate: 336h
>
> As discussed previously (https://issues.apache.org/jira/browse/MAHOUT-640) it
> would be beneficial to provide a persistent storage mechanism for
> factorizations created by SVDRecommender (in package
> org.apache.mahout.cf.taste.impl.recommender.svd) as these can be time
> consuming to produce. It would also allow factorizations to be computed on
> one machine then distributed to other machines providing predictions,
> improving efficiency and scalability.
> Having a "persistence strategy" interface has been suggested that could be
> implemented as required. I'll try to post a outline proposal for discussion
> purposes in the next few days but any comments or suggestions would be very
> welcome.
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