\begin{table}[h!]
    \centering
    \caption{Hyperparameters settings.}
    \resizebox{0.7\columnwidth}{!}{  % 调整表格宽度为单栏宽度
    \begin{tabular}{lcccccc} % 添加竖线
        \hline
        \textbf{Hyperparameters} & \textbf{Enron} & \textbf{DBLP} & \textbf{Facebook} & \textbf{Email}  & \textbf{AS733} \\
        \hline
        Learning Rate & 1e-3 & 1e-3 & 1e-3 & 5e-3 & 1e-2  \\ 
        \textbf{K} & 2 & 2 & 3 & 2 & 2 \\
        $\lambda$ & 0.05 & 0.5 & 0.01 & 0.01 & 0.05  \\
         Masking Strategies & Path, Edge & Edge, Edge & Path, Path, Path & Path, Edge & Path, Edge \\
        Masking Rate $p$ & 0.5, 0.7 & 0.1, 0.2 & 0.4, 0.6, 0.8 & 0.1, 0.3 & 0.6, 0.7  \\
         Encoder & GCN & GCN & GCN & GCN & GCN \\
        Encoder Layers \(L\) & 2 & 2 & 2 & 2 & 2 \\
        \hline
    \end{tabular}
    }
    \label{tab:parameters}
\end{table}
    