## 4 Results and Discussion
### RQ8: What Is the Performance of DL-Based Web Attacks Detection Models?
\begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline
**ID** & **Paper** & **Targeted Web Attacks** & **Classification Model** & **Dataset** & **Classification Type** & **Performance Metrics** & **Limitations** \\ \hline \multirow{4}{*}{PS10} & \multirow{4}{*}{[48]} & \multirow{4}{*}{SQL} & CNN & Private dataset & \multirow{2}{*}{binary} & -Accuracy: 0.953 & \multirow{4}{*}{-Collect a dataset for SQL injection attack} \\  & & & & & -TIFC: 0.957 & & & \\  & & & & & -TIFC: 0.957 & & & \\ \cline{3-7}  & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} \\  & & & & & & -TIFC: 0.877 & & & \\ \hline \multirow{4}{*}{PS11} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} \\  & & & & & & & -Accuracy: 0.9797 & & \\ \cline{3-7}  & \multirow{4}{*}{[5]} & & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} \\  & & & & & & -TIFC: 0.957 & & & \\ \cline{3-7}  & \multirow{4}{*}{[5]} & & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} \\  & & & & & & & -TIFC: 0.877 & & \\ \cline{3-7}  & \multirow{4}{*}{[5]} & & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} \\  & & & & & & & -GPR: 0.03 & & \\ \cline{3-7}  & \multirow{4}{*}{[5]} & & \multirow{4}{*}{[5]} & & & & -AUC: 0.96 & & \\ \hline \multirow{4}{*}{PS14} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} \\  & & & & & & & -Accuracy: 0.979 & & \\ \cline{3-7}  & \multirow{4}{*}{[5]} & & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} \\  & & & & & & & -Precision: 0.974 & & \\ \cline{3-7}  & \multirow{4}{*}{[5]} & & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} \\  & & & & & & -TIFC: 0.97 & & \\ \cline{3-7}  & \multirow{4}{*}{[5]} & & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} \\  & & & & & & -FDR: 0.99 & & \\ \cline{3-7}  & \multirow{4}{*}{[5]} & & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} \\  & & & & & & -FDR: 0.89 & & \\ \cline{3-7}  & \multirow{4}{*}{[5]} & & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} \\  & & & & & & -Accuracy: 0.882 & & \\ \cline{3-7}  & \multirow{4}{*}{[5]} & & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} \\  & & & & & & -FDR: 0.84 & & \\ \cline{3-7}  & \multirow{4}{*}{[5]} & & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} \\  & & & & & & -FDR: 0.88 & & \\ \cline{3-7}  & \multirow{4}{*}{[5]} & & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} \\  & & & & & & & -FDR: 0.88 & \\ \cline{3-7}  & \multirow{4}{*}{[5]} & & \multirow{4}{*}{[5]} & & & & & -FDR: 0.88 & \\ \cline{3-7}  & \multirow{4}{*}{[5]} & & & & & & -FDR: 0.88 & \\ \cline{3-7}  & \multirow{4}{*}{[5]} & & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} & \multirow{4}{*}{[5]} \\ \cline{3-7}  & \multirow{4}{*}{[5]} & & & & & & -Accuracy: 0.882 & & \\ \cline{3-7}  & \multirow{4}{*}{[5]} & & \multirow{4}{*}{[5]} & & & & -FDR: 0.805 & & \\ \cline{3-7}  & \multirow{4}{*}{[5]} & & & & & & -FDR: 0.88 & \\ \cline{3-7}  & \multirow{4}{*}{[5]} & & & & & & & -FDR: 0.88 & \\ \cline{3-7}  & \multirow{4}{*}{[5]} & & \multirow{4}{*}{[5]} & & & & & & \\ \cline{3-7}  & \multirow{4}{*}{[5]} & & & & & & & -FDR: 0.88 & \\ \hline \hline \end{tabular}
\end{table}