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Semiparametric Inference for ROC Curves with Censoring.
- Source :
-
Scandinavian Journal of Statistics . Jun2008, Vol. 35 Issue 2, p212-227. 16p. 1 Chart, 1 Graph. - Publication Year :
- 2008
-
Abstract
- Comparison of two samples can sometimes be conducted on the basis of analysis of receiver operating characteristic (ROC) curves. A variety of methods of point estimation and confidence intervals for ROC curves have been proposed and well studied. We develop smoothed empirical likelihood-based confidence intervals for ROC curves when the samples are censored and generated from semiparametric models. The resulting empirical log-likelihood function is shown to be asymptotically chi-squared. Simulation studies illustrate that the proposed empirical likelihood confidence interval is advantageous over the normal approximation-based confidence interval. A real data set is analysed using the proposed method. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 03036898
- Volume :
- 35
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- Scandinavian Journal of Statistics
- Publication Type :
- Academic Journal
- Accession number :
- 32000708
- Full Text :
- https://doi.org/10.1111/j.1467-9469.2007.00580.x