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.
Example of how a classifier on a subset of the total sample (light blue circles, dotted line) fails to adequately classify the total sample (dark blue ellipsoids, solid line) though the latter can be classified by itself, even yielding perfect classification accuracy on the smaller subset.
