The F1 Score is the harmonic mean of precision and recall, defined as:

$$
\
F_1 = 2 \cdot \frac{\text{Precision} \cdot \text{Recall}}{\text{Precision} + \text{Recall}}
\
$$
Where:
\begin{itemize}
    \item \textbf{Precision} \( = \frac{TP}{TP + FP} \)
    \item \textbf{Recall} \( = \frac{TP}{TP + FN} \)
    \item \( TP \): True Positives
    \item \( FP \): False Positives
    \item \( FN \): False Negatives
\end{itemize}