p*****o
发帖数: 543 | 1 being asked a lot of times about it. looks like banking using it to check
whether model is good or not. but what is that... | l****u
发帖数: 529 | 2 I try to explain it.
Cumulative lift is a method used in model assessment. Here is the concept:
The ratio, (proportion of cases with the primary outcome in the selected
fraction) to (proportion of cases with the primary outcome overall), is
defined as cumulative lift. Cumulative lift corresponds to the vertical axis
. High values of cumulative lift suggest that the model is doing a good job
separating the primary and secondary cases.
lift over means the lift is over one exact value? |
|
