Prediction accuracy of a sample-size estimation method for ROC studies
DP Chakraborty - Academic radiology, 2010 - Elsevier
… The HB sample-size algorithm 10, 27 generates a table of different combinations of … and
cases that yield the desired power for random-all, random-cases, and random-readers analyses. …
cases that yield the desired power for random-all, random-cases, and random-readers analyses. …
An empirical study of sample size in ROC curve analysis of fingerprint data
JC Wu, CL Wilson - Biometric Technology for Human …, 2006 - spiedigitallibrary.org
… In this article, an empirical study, namely, using Chebyshev’s inequality in combination with
simple random sampling, is applied to determine the sample size for biometric applications. …
simple random sampling, is applied to determine the sample size for biometric applications. …
Sample size determination for diagnostic accuracy studies involving binormal ROC curve indices
NA Obuchowski, DK McCLISH - Statistics in medicine, 1997 - Wiley Online Library
… We assume these random variables are from normal distributions, as follows: … curve studies:
hypothesis testing and sample size estimation using an analysis of variance approach with …
hypothesis testing and sample size estimation using an analysis of variance approach with …
Small-sample precision of ROC-related estimates
… analyses based on different predictive algorithms and methods of validation. We have analyzed
the effect of sample size … the uncertainty introduced by randomly sampling the data from …
the effect of sample size … the uncertainty introduced by randomly sampling the data from …
ROC analysis
NA Obuchowski - American Journal of Roentgenology, 2005 - Am Roentgen Ray Soc
… statistical methods for fitting ROC curves, comparing them, and determining sample size for
studies using ROC curves. We … Fixed- or random-effects models.—The MRMC study has two …
studies using ROC curves. We … Fixed- or random-effects models.—The MRMC study has two …
Sample size calculations for ROC studies: parametric robustness and Bayesian nonparametrics
D Cheng, AJ Branscum, WO Johnson - Statistics in Medicine, 2012 - Wiley Online Library
… analysis of ROC data is planned, then sample size … Bayesian approach to sample size
analysis in ROC studies using … ) test scores from a random sample of individuals within the D and …
analysis in ROC studies using … ) test scores from a random sample of individuals within the D and …
Statistical issues in ROC curve analysis
HE Rockette, NA Obuchowski… - Medical Imaging IV …, 1990 - spiedigitallibrary.org
… under an ROC curve can be estimated by sampling within the … sample size required to obtain
a given degree of precision.2 … and not as a random sample from a larger population of cases…
a given degree of precision.2 … and not as a random sample from a larger population of cases…
ROC Curves in Clinical Chemistry: Uses, Misuses, and Possible Solutions
NA Obuchowski, ML Lieber, FH Wians Jr - Clinical chemistry, 2004 - academic.oup.com
… Chemistry with an appropriate ROC analysis. Martinez et al. (8) … to systematic bias and not
to random variability). One of the … We discuss sample size according to the phase of the study …
to random variability). One of the … We discuss sample size according to the phase of the study …
A comparison of confidence/credible interval methods for the area under the ROC curve for continuous diagnostic tests with small sample size
D Feng, G Cortese… - Statistical Methods in …, 2017 - journals.sagepub.com
… since the expected value of a random variable is the area under its … analysis of the empirical
distributions of the two samples. … for AUC analysis in presence of sample sizes lower than 20 …
distributions of the two samples. … for AUC analysis in presence of sample sizes lower than 20 …
Bounding sample size projections for the area under a ROC curve
JD Blume - Journal of statistical planning and inference, 2009 - Elsevier
… sample size that are free of these two correlation parameters. The lower bound is the smallest
sample size that … The area under the ROC curve (AUC) is the probability that a randomly …
sample size that … The area under the ROC curve (AUC) is the probability that a randomly …