Figure 7.
Estimation of polyphenol content of cross-category tea based on different features. Top: Grid-SVR model; middle: RF model; bottom: XGBoost model with original features (a,c,e) and preferred features (b,d,f).
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.