Next: Estimating Entire Lift Curve

• Cumulative Percent Hits

CumPHits = Lift(P) * P

curve is easier to model than lift

• Several regressions for all CumPHits curves

• Best results with regression

  log10(CumPHits(P)) = a + b log10(P)
  

• Average R2 = 0.97

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