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https://issues.apache.org/jira/browse/MAHOUT-563?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12992942#comment-12992942
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Lance Norskog commented on MAHOUT-563:
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The estimator samples 20 points and tries to guess T1/T2 from that subset. Yes,
"all distances" is not a scalable technique.
bq. Uhh... this isn't a graph.
Yup, brain-hiccup.
> CanopyEstimator - Estimate T1/T2 for CanopyClusterer
> ----------------------------------------------------
>
> Key: MAHOUT-563
> URL: https://issues.apache.org/jira/browse/MAHOUT-563
> Project: Mahout
> Issue Type: New Feature
> Components: Clustering
> Reporter: Lance Norskog
> Assignee: Sean Owen
> Priority: Minor
> Attachments: MAHOUT-563.patch
>
>
> Hunting for T1/T2 values that make an interesting Canopy set is a singularly
> unsatisfying task. This class estimates T1 and T2 numbers given the original
> set.
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