\begin{table}[ht]
    \caption{Running time comparison}
    \label{tab:running_time_supp}
    \centering
    \small
    \begin{tabular}{ccccccc}
        \toprule
        \multirow{2}{*}{\textbf{Model}} & \multicolumn{2}{c}{\textbf{Citeulike-a}} & \multicolumn{2}{c}{\textbf{Cell Phones}} & \multicolumn{2}{c}{\textbf{MovieLens}}\\
        \cmidrule(r){2-3}\cmidrule(lr){4-5}\cmidrule(l){6-7}
        & Training & Inference &  Training & Inference &  Training & Inference\\
        \midrule
        \ourmethod\ & 1,7525 & 0.0375 & 6.1622 & 0.1230 & 3.1120 & 0.0546\\
        ADDVAE & 1.6856 & 0.0344 & 5.6608 & 0.1070 & 2.9653 & 0.0544\\
         \bottomrule
    \end{tabular}
\end{table}