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.
Left: Degree distribution for social-network users including both bi-directional friend and uni-directional follower connections. Right: Distribution of time between edges. 84% of all edges get created within 7 days of the previous edge. Both plots show unnormalized CCDFs.
