Search Results roc curve
1.
The ROC Curve and the Area under It as Performance Measures
...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...utilized to relate the shape of the ROC curve, and the area under it, to features...
December 1, 2004; Weather and Forecasting
2.
Standardization of ROC Curve Areas for Diagnostic Evaluation of Liver Fibrosis Markers Based on Prevalences of Fibrosis Stages
Background: The area under the ROC curve (AUC) is widely used as an estimate of the diagnostic value...diagnostic accuracy is evaluated using the area under the ROC curve (AUC) (2-4). The AUC combines the sensitivity and specificity...
September 1, 2007; Clinical Chemistry
3.
How to Measure the Diagnostic Accuracy of Noninvasive Liver Fibrosis Indices: The Area Under the ROC Curve Revisited
BACKGROUND: The area under the ROC curve (AUC) is widely used to measure the diagnostic accuracy...the different studies and is based on the area under the ROC curve (AUC)6 (7, 9). In this context, the AUC represents the...
August 1, 2008; Clinical Chemistry
4.
Statistical Evaluation of Prognostic versus Diagnostic Models: Beyond the ROC Curve
...dimension of time, adding a stochastic element. CONTENT: The ROC curve is typically used to evaluate clinical utility for both...evaluation of prognostic models should not rely solely on the ROC curve, but should assess both discrimination and calibration...
January 1, 2008; Clinical Chemistry
5.
Influence of Imprecision on ROC Curve Analysis for Cardiac Markers
...cTnI) and examined its impact on ROC curve analysis. Results: Superimposition...difference in the area under the ROC curve observed for BNP for diagnosis of...the area under the corresponding ROC curve (AUC). Two different data sets were...
April 1, 2006; Clinical Chemistry
6.
Diagnostic Accuracy of Serum Ceruloplasmin in Wilson Disease: Determination of Sensitivity and Specificity by ROC Curve Analysis among ATP7B-Genotyped Subjects
BACKGROUND: A serum ceruloplasmin concentration below 0.20 g/L is conventionally considered as one of the major diagnostic criteria for Wilson disease. This decision threshold has not been fully validated for its diagnostic characteristics, however. In this study, we evaluated various decision
August 1, 2008; Clinical Chemistry
7.
Is the area measure a historical anomaly?
...between the area under the yes-no ROC curve and the percent correct of an unbiased...task itself. We also show that the ROC curve may not be the ideal graphical device...equivalence between the area under the ROC curve in a yes-no detection task and the...
September 1, 2003; Canadian Journal of Experimental Psychology
8.
Semiparametric regression for the area under the receiver operating characteristic curve.
...receiver operating characteristic (ROC) curve analysis (Zhu, Beling, and Overstreet...classification into state D. The ROC curve piots {Pr(Y > c\D), Pr(Y >...is desirable. The area under the ROC curve (AUC) summarizes across all thresholds...
June 1, 2003; Journal of the American Statistical Association
9.
Discordance Analysis Characteristics as a New Method to Compare the Diagnostic Accuracy of Tests: Example of Complexed Versus Total Prostate-Specific Antigen
Background: ROC curve analysis is used to compare the overall...measured values (1). The full area under the ROC curve has been criticized because it gives equal...use of a marker, only one portion of the ROC curve, the local performance of a test within...
March 1, 2005; Clinical Chemistry
10.
Using smoothed receiver operating characteristic curves to summarize and compare diagnostic systems.
...receiver operating characteristic (ROC) curve, which is a plot of Pr(X [greater...distributions. When X is discrete, the ROC curve is a set of discrete points. When...a closed-form expression for the ROC curve is a plot of [Mathematical Expression...
December 1, 1998; Journal of the American Statistical Association
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