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Posted to dev@lucene.apache.org by "Tommaso Teofili (JIRA)" <ji...@apache.org> on 2016/05/26 14:13:12 UTC

[jira] [Created] (LUCENE-7305) Use macro average in confusion matrix metrics to normalize imbalanced classes

Tommaso Teofili created LUCENE-7305:
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             Summary: Use macro average in confusion matrix metrics to normalize imbalanced classes
                 Key: LUCENE-7305
                 URL: https://issues.apache.org/jira/browse/LUCENE-7305
             Project: Lucene - Core
          Issue Type: Improvement
          Components: modules/classification
            Reporter: Tommaso Teofili
            Assignee: Tommaso Teofili
             Fix For: 6.1


{{ConfusionMatrix}} multi class measures should be based on macro average to avoid bias (for the good or the bad) from imbalanced classes.



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