The Receiver Operating Characteristic (ROC) curve is a two dimensional measure of classification performance. The area under the ROC curve (AUC) is a scalar measure gauging one facet of performance. In this note, five idealized models are utilized to relate the shape of the ROC curve, and the area under it, to features of the underlying distribution of forecasts. This allows for an interpretati...

BACKGROUND The cosyntropin stimulation test is the initial endocrine evaluation of suspected primary or secondary adrenal insufficiency. PURPOSE To critically review the utility of the cosyntropin stimulation test for evaluating adrenal insufficiency. DATA SOURCES The MEDLINE database was searched from 1966 to 2002 for all English-language papers related to the diagnosis of adrenal insuffic...

Receiver Operating Characteristics (ROC) curve serves as a statistical tool to measure the quality of Biomarker in 5 accessing the accuracy of any diagnostic test. This paper portrays the historical background of ROC curve and reviews various 6 parametric methods adopted for fitting the ROC curve till date. The parametric ROC models that are considered in this paper 7 are Bi-Normal, Bi-Gamma, B...

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