\begin{figure}
    \begin{subfigure}{0.48\linewidth}
        \includegraphics[width=0.48\linewidth]{ACSAC/figures/advdebias/census/census_advdeb_attack_hard_race.pdf}
        \caption{Census (race)}
    \end{subfigure}
    \begin{subfigure}{0.48\linewidth}
        \includegraphics[width=0.48\linewidth]{ACSAC/figures/advdebias/census/census_advdeb_attack_hard_sex.pdf}
        \caption{Census (sex)}
    \end{subfigure}
    \begin{subfigure}{0.48\linewidth}
        \includegraphics[width=0.48\linewidth]{ACSAC/figures/advdebias/compas/compas_advdeb_attack_hard_race.pdf}
        \caption{Compas (race)}
    \end{subfigure}
    \begin{subfigure}{0.48\linewidth}
        \includegraphics[width=0.48\linewidth]{ACSAC/figures/advdebias/compas/compas_advdeb_attack_hard_sex.pdf}
        \caption{Compas (sex)}
    \end{subfigure}
    \begin{subfigure}{0.48\linewidth}
        \includegraphics[width=0.48\linewidth]{ACSAC/figures/advdebias/meps/meps_advdeb_attack_hard_race.pdf}
        \caption{Meps (race)}
    \end{subfigure}
    \begin{subfigure}{0.48\linewidth}
        \includegraphics[width=0.48\linewidth]{ACSAC/figures/advdebias/meps/meps_advdeb_attack_hard_sex.pdf}
        \caption{Meps (sex)}
    \end{subfigure}
    \begin{subfigure}{0.48\linewidth}
        \includegraphics[width=0.48\linewidth]{ACSAC/figures/advdebias/lfw/lfw_advdeb_attack_hard_race.pdf}
        \caption{Lfw (race)}
    \end{subfigure}
    \begin{subfigure}{0.48\linewidth}
        \includegraphics[width=0.48\linewidth]{ACSAC/figures/advdebias/lfw/lfw_advdeb_attack_hard_sex.pdf}
        \caption{Lfw (sex)}
    \end{subfigure}
    \caption{adverarial debiasing hard}
    \label{fig:aia-adv-hard}
\end{figure}