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https://issues.apache.org/jira/browse/SPARK-13042?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-13042:
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Assignee: (was: Apache Spark)
> Adding Specificity metric (= true negative rate) to MulticlassMetrics.scala
> ---------------------------------------------------------------------------
>
> Key: SPARK-13042
> URL: https://issues.apache.org/jira/browse/SPARK-13042
> Project: Spark
> Issue Type: Improvement
> Components: MLlib
> Reporter: Daniel Marcous
> Priority: Minor
> Labels: metrics, mllib
> Fix For: 1.6.0
>
> Original Estimate: 12h
> Remaining Estimate: 12h
>
> Adding Specificity metric (= true negative rate) to MulticlassMetrics.scala
> 1. Add specificity calculations:
> pecificity (SPC) or true negative rate
> SPC = TN / N = TN / (TN+FP)
> False Positive Rate (FPR)
> FPR = FP / N = FP / (FP + TN) = 1-SPC
> SPC = 1 - FPR
> 2. Add specificity tests to :
> mllib/src/test/scala/org/apache/spark/mllib/evaluation/MulticlassMetricsSuite.scala
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