Fig 2. Return dynamics of Twitter users: (a) The probability of return of users to a given locational; (b) preferential return to previously visited locations.
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.