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.
How K-means is applied to generate training and validation splits, and to apply block bootstrapping. The left map shows 50 splits of the data. The right map shows an example split, in which 40 blocks are used for training, and 10 blocks are used for validation.
