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.
Average parameter values for the Gamma distribution. α is the rate parameter, β is the shape parameter, and ξ is the starting time parameter. For the confidence intervals in the upper left, F stands for feature search, C stands for conjunction search, and S stands for spatial configuration search.
