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 the persistent barcodes generated by using correlation matrix based filtrations with different characteristic distances. The exponential kernel model with power κ = 2 is used. The characteristic distances in the left and right charts are respectively η = 2 and η = 20.
