Figure 4.
This is “Section 2.3. Data acquisition” of a PMC article (Hua et al. (33)). Of the 11 concept instances detected, nine are unique concepts. The nine unique concepts are included as part of the document representation for the search system.
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.