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https://issues.apache.org/jira/browse/MAHOUT-910?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sean Owen updated MAHOUT-910:
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Attachment: SamplingCandidateItemsStrategy.java
It changed so much it might be easier to read the new source file. Here I've
gone another way: three parameters to control, but they're all just the
"factor" from Sebstian's previous code. It lets you specify limits of the form
f*log(n), so limits are logarithmic in the number of items/users. How's this?
There's no overall cap since it is determined by these three values.
> Improve sampling in SamplingCandidateItemStrategy, optimize intersection
> computations
> -------------------------------------------------------------------------------------
>
> Key: MAHOUT-910
> URL: https://issues.apache.org/jira/browse/MAHOUT-910
> Project: Mahout
> Issue Type: Improvement
> Components: Collaborative Filtering
> Affects Versions: 0.5
> Reporter: Sean Owen
> Assignee: Sean Owen
> Fix For: 0.6
>
> Attachments: MAHOUT-910.patch, MAHOUT-910.patch, MAHOUT-910.patch,
> SamplingCandidateItemsStrategy.java
>
>
> Per the lengthy discussion on the mailing list about optimizing
> SamplingCandidateItemStrategy and related code, I'm opening this placeholder
> issue.
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