If I were to try to understand these data, I'd like to know (a) How are "fraudulent transactions" determined? (b) Is the mechanism perfect or just very good? (c) What fraction of fraudulent transactions does it capture?…
If I were to try to understand these data, I'd like to know (a) How are "fraudulent transactions" determined? (b) Is the mechanism perfect or just very good? (c) What fraction of fraudulent transactions does it capture?…