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https://issues.apache.org/jira/browse/MAHOUT-941?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Work on MAHOUT-941 started by Robin Anil.
> Improve ConfusionMatrix statistics
> ----------------------------------
>
> Key: MAHOUT-941
> URL: https://issues.apache.org/jira/browse/MAHOUT-941
> Project: Mahout
> Issue Type: Improvement
> Components: Classification
> Reporter: Lance Norskog
> Assignee: Robin Anil
> Priority: Minor
> Fix For: 0.8
>
> Attachments: Bayes.zip, MAHOUT-941.patch, MAHOUT-941.patch,
> MAHOUT-941.patch, SGD.zip
>
>
> This patch adds more statistics to the ConfusionMatrix and RequestAnalyzer.
> # Add Kappa measure - a standard measure comparing a sample v.s. random
> assignment.
> # Add mean & standard deviation of "Reliability" (User Accuracy) - assist in
> identifying consistent mal-assignment against "good" and "bad" labels.
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