I understand that the "Find threshold" operator uses ROC to determine the best threshold. But, what kind of algorithm it uses to select the threshold? For example, (1) optimizes the precision and recall, or (2) something like this: http://stats.stackexchange.com/questions/29719/how-to-determine-best-cutoff-point-and-its-confidence-interval-using-roc-curve-i, or (3) other
Thanks!