Top panel: sensitivity from direct method (DIR) and shrinkage method (SHR) (square: DIR and circle: SHR). Bottom left panel: the difference of sensitivity between PROB1 and SHR (triangle: PROB1, Pprob takes 0.6, 0.7, 0.8, 0.9, and 0.95 for the five curves from top to bottom). Bottom right panel: the difference of sensitivity between PROB2 and SHR (plus: PROB2, s = 0:95 for the curve above 0, and s takes 0.25, 0.5, 0.75, and 0.9 for the 4 curves below). The classification goal is to identify top 10% of hospitals.