The radiological search model (RSM)
The search model1,2; is based on the Kundel-Nodine model of the diagnostic interpretation process. It predicts ROC, LROC, AFROC and FROC curves3. The search model predicted ROC curves are always proper - they never cross the chance diagonal or display inappropriate "hooks"
. The model is used in the curve fitting and sample-size estimation capabilities of RJafroc software.
For further details see my papers; e-mail me if you need PDFs.
- Chakraborty DP. A search model and figure of merit for observer data acquired according to the free-response paradigm. Phys Med Biol. 2006;51:3449–3462.
- Chakraborty DP. ROC Curves predicted by a model of visual search. Phys Med Biol. 2006;51:3463–3482.
- Chakraborty DP, Yoon HJ. Operating characteristics predicted by models for diagnostic tasks involving lesion localization. Med Phys. 2008;35(2):435-445.