why do ac curves cross 0 which direction does the auc curve go how does it look when a ROC curve crosses the 0-1 what does acv mean what is the abc value of the r curve when a ROC curve crosses the 0-1 line, it means what what does it means when the auc curve crosses the 0 what does it mean when the curve crosses what is the difference between an alternating auc curve and an auc curve why do a auc curve cross multiple times what is a auc curve what is the definition of the alternating auc curve? avc curve definition which auc curve does not cross what does crossing the line of the auc curve mean why do r curves cross a line why a r curve crosses the 0-1 line what does it mean if a r curve crosses the 0-1 line what does the auc curve mean what does the r curves mean in an auc curve