Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Illustration of multiple local maximizers introduced by allowing the sign of the combined score to flip. (a) Set β1 = 1 and allow the sign of the combined score to flip whenever the AUC is less than 0.5. The two local maximizers are indicated by asterisks. (b) and (c): Set β1 = 1 and −1, respectively, and forbid a sign flip. Then only a unique maximizer exists for each search.
