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Talk:Benchmark
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Revision as of 01:01, 14 July 2016 by Eelgheez (talk | contribs) (→The diagonal's meaning: new section)
The diagonal's meaning
I don't think it's fair to call the diagonal line in the FPR/TPR chart a "random guess" line. The FPR == TPR equation translates to FP/(FP+TN) == TP/(TP+FN), meaning FP*FN == TN*TP, or FP/TP == TN/FN. The FPR > TPR area below the line does not put the tool into a "worse than guessing" shame list. The last equation suggests a different interpretation of that area, "the error rate in reporting exceeds the correctness rate in staying silent". --Eelgheez (talk) 20:01, 13 July 2016 (CDT)
