SEVENTH
ANNUAL
ASAP '99 WORKSHOP
|
SEVENTH
ANNUAL |
|
Estimation of Prescribed False Alarm Rate Thresholds
and ROC Curves from Local Data Using Tolerance Intervals Edward C. Real Sanders, A Lockheed Martin Company P.O. Box 868 Nashua, NH 03061-0868 tel: (603) 885-5147 email: edward.c.real@lmco.com Donald W. Tufts University of Rhode Island Abstract We present a method for estimating
threshold values for signal detection and classification systems in which a prescribed
value of false alarm probability is needed. The threshold values are determined directly
from observed test statistic data without knowledge of the probability distribution of the
data. Our method uses the concept of tolerance intervals from nonparametric statistics. We
use this same approach to compute ROC curves from real data. We demonstrate our method
with data taken from a two color IR focal plane array. |
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