\begin{table}[ht]
\centering
\small
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\begin{tabular}{lcccc}
\toprule
\textbf{Model ID} & \textbf{Batch Size} & \textbf{Learning Rate} & \textbf{Epoch} & \textbf{Sigmoid} \\
\midrule
\rowcolor[gray]{0.95}
M1 & 16 & 1e-5 & 7 & \checkmark \\
M2 & 32 & 1e-5 & 3 &            \\
\rowcolor[gray]{0.95}
M3 & 32 & 1e-5 & 5 & \checkmark \\
M4 & 32 & 1e-5 & 7 & \checkmark \\
\rowcolor[gray]{0.95}
M5 & 32 & 2e-5 & 5 & \checkmark \\
M6 & 32 & 8e-6 & 3 & \checkmark \\
\rowcolor[gray]{0.95}
M7 & 32 & 8e-6 & 7 &            \\
\bottomrule
\end{tabular}
\caption{Hyperparameter configurations of the seven candidate models. All models utilize XLM-RoBERTa-large as the backbone and are trained under a joint multilingual and multi-domain setting.}
\label{tab:ensemble_models}
\end{table}