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.
Steps to building a vocabulary using the dynamic query expansion (DQE) model. Beginning from a few general phrases about protests, DQE hones in on keywords relevant to the particular situation being analyzed. As shown, the expanded keywords are pertinent matches to a specific gold standard report event.
