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.
An illustration of a set
of graphs, two hyperedges defined by
, and the summary graph of
. In Fig. 1c, to aid clarity, we show the number of occurrences of each edge in a graph in
, rather than the fraction of graphs in which the edge occurs.
