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.
Evaluation metrics used in COVID-19 detection.
| Metrics | Equations | Notes |
|---|---|---|
| Accuracy | ACC = (TP + TN)/(TP + TN + FP + FN) | |
| Precision | PPV = TP/(TP + FP) | Positive Predicted Value (PPV) |
| Recall | SE = TP/(TP + FN) | True Positive Rate (TPR) or Sensitivity |
| F1-score | F1 = 2TP/(2 TP + FP + FN) | Harmonic mean of Precision and Recall |
