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Maximum likelihood estimation of signal detection model parameters for the assessment of two-stage diagnostic
R B Lirio1, I C Dondériz, M C Pérez Abalo
1Cuban Neuroscience Center, Havana.
International Journal of Bio-Medical Computing
|August 1, 1992
Abstract:
The methodology of Receiver Operating Characteristic curves based on the signal detection model is extended to evaluate the accuracy of two-stage diagnostic strategies. A computer program is developed for the maximum likelihood estimation of parameters that characterize the sensitivity and specificity of two-stage classifiers according to this extended methodology. Its use is briefly illustrated with data collected in a two-stage screening for auditory defects.