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A comment on Happy New Year HN!. Parent comment
If you look at your algorithm's ROC: you really want to avoid false negatives ("nope, not a real friend" when they actually could be).
Whereas a false positive ("yep, could be a real friend" and they turn out not to be) is something you will notice & correct eventually.
If you look at your algorithm's ROC: you really want to avoid false negatives ("nope, not a real friend" when they actually could be).
Whereas a false positive ("yep, could be a real friend" and they turn out not to be) is something you will notice & correct eventually.