Skip to main content
13 events
when toggle format what by license comment
Sep 25, 2021 at 4:11 vote accept nan
Sep 21, 2021 at 13:33 history edited nan CC BY-SA 4.0
added 1184 characters in body
Sep 20, 2021 at 15:48 history edited nan CC BY-SA 4.0
added 237 characters in body
Sep 20, 2021 at 15:00 history tweeted twitter.com/StackStats/status/1439967587874525188
Sep 20, 2021 at 14:27 history became hot network question
Sep 20, 2021 at 11:42 answer added Frank Harrell timeline score: 8
Sep 20, 2021 at 9:31 answer added ReneBt timeline score: 6
Sep 20, 2021 at 9:17 answer added ofer-a timeline score: 5
Sep 20, 2021 at 8:47 comment added nan @ReneBt Do you mind illustrating the concepts mathematically? I cannot seem to derive the idea above.
Sep 20, 2021 at 8:43 comment added ReneBt It is only true that it is not directly mathematically affected. It is however indirectly statistically affected because the statistical power of the lower prevalence group is weaker and so will skew the confidence of the respective contributions of each group. The long run average will have the same expected TP and FP rate, but short run repeated small experiments would give estimates will vary a lot more for low prevalence groups than for high prevalence groups, which will have a knock on effect on the reliability of the AUCROC.
Sep 20, 2021 at 7:55 answer added Adept timeline score: 2
Sep 20, 2021 at 6:31 history edited nan CC BY-SA 4.0
added 1731 characters in body
Sep 20, 2021 at 6:24 history asked nan CC BY-SA 4.0