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.
A network is clustered, textual annotation associated with each cluster is automatically summarized as a single cluster label, and the results are visualized. Users can customize the view by selectively collapsing and expanding clusters.
