In page 3, "Readers rated each case using the forced BI-RADS scale, and BI-RADS scores were compared to ground-truth outcomes to fit an ROC curve for each reader. The scores of the AI system were treated in the same manner (Fig. 3)."
This isn't as clear as I want it to be, but Fig. 3 shows both "AI system" and "AI system (non-parametric)" ROC curve. My understanding is that the former is fit from discrete BI-RADS class, and the latter is "raw" output.
This isn't as clear as I want it to be, but Fig. 3 shows both "AI system" and "AI system (non-parametric)" ROC curve. My understanding is that the former is fit from discrete BI-RADS class, and the latter is "raw" output.