\begin{figure} 
%\hfill
\begin{minipage}[b]{.45\linewidth} 
%\centering 
     \begin{subfigure}[b]{0.7\textwidth}
         \centering
         \includegraphics[width=\textwidth]{Figures/compare_mnist.png}
         \caption{The ablation study of the \textbf{CS} and \textbf{CCS} components.}
         %  in MNIST to USPS task, comparing with MMD and joint distribution MMD (JPMMD)
         \label{Fig.abl-mnist}
     \end{subfigure}
     \begin{subfigure}[b]{0.7\textwidth}
         \centering
         \includegraphics[width=\textwidth]{Figures/compare_mnist_fdal.png}
         \caption{The ablation study of \textbf{f-DAL with CCS} divergence } 
         %  in MNIST to USPS task. CCS divergence improves the performance of f-DAL consistently.
         \label{fig:f-dal-ccs}
     \end{subfigure}
        \caption{Percent ($1$ indicates $100\%$) of correctly rejecting $H_0$ hypothesis with different values of $\mu$ and $\sigma^2$.}
        \label{fig:marginal_power}
\end{minipage}% 
%\hfill
\begin{minipage}[b]{.5\linewidth} 
     \begin{subfigure}[b]{0.4\textwidth}
         \centering
         \includegraphics[width=\textwidth]{Figures/TSNE_25_no_adaptation.png}
         \caption{No adaptation}
         \label{fig:tsne-no-ad}
     \end{subfigure}
     \begin{subfigure}[b]{0.4\textwidth}
         \centering
         \includegraphics[width=\textwidth]{Figures/TSNE_25_cs.png}
         \caption{CS divergence}
         \label{fig:tsne-cs}
     \end{subfigure}
     %\hfill
     \begin{subfigure}[b]{0.4\textwidth}
         \centering
         \includegraphics[width=\textwidth]{Figures/TSNE_25_ccs.png}
        \caption{CCS divergence}
         \label{fig:tsne-ccs}
     \end{subfigure}
     \begin{subfigure}[b]{0.4\textwidth}
         \centering
         \includegraphics[width=\textwidth]{Figures/TSNE_25_cs_ccs.png}
        \caption{CCS \& CS divergence}
         \label{fig:tsne-cs-ccs}
     \end{subfigure}
\caption{t-SNE visualization of feature trained without adaptation (\ref{fig:tsne-no-ad}), with CS divergence (\ref{fig:tsne-cs}, with CCS divergence (\ref{fig:tsne-ccs}), and with both CCS and CS divergences (\ref{fig:tsne-cs-ccs}).} 
\label{tab:fig:tsne-overall}
\end{minipage} 
\end{figure}


% \begin{figure} 
% \centering 
%      \begin{subfigure}[b]{0.3\textwidth}
%          \includegraphics[width=\textwidth]{Figures/compare_mnist.png}
%          \caption{The ablation study of the \textbf{CS} and \textbf{CCS} components in MNIST to USPS task, comparing with MMD and joint distribution MMD (JPMMD).}
%          \label{Fig.abl-mnist}
%      \end{subfigure}
%      \hspace{0.05\textwidth} % Add horizontal space
%      \begin{subfigure}[b]{0.3\textwidth}
%          \includegraphics[width=\textwidth]{Figures/compare_mnist_fdal.png}
%          \caption{The ablation study of \textbf{f-DAL with CCS} divergence in MNIST to USPS task. CCS divergence improves the performance of f-DAL consistently. }
%          \label{fig:f-dal-ccs}
%      \end{subfigure}
% \end{figure}



% \begin{figure} 
% %\hfill
% \centering 
%      \begin{subfigure}[b]{0.23\textwidth}
%          \centering
%          \includegraphics[width=\textwidth]{Figures/TSNE_25_no_adaptation.png}
%          \caption{No adaptation}
%          \label{fig:tsne-no-ad}
%      \end{subfigure}
%      \begin{subfigure}[b]{0.23\textwidth}
%          \centering
%          \includegraphics[width=\textwidth]{Figures/TSNE_25_cs.png}
%          \caption{CS divergence}
%          \label{fig:tsne-cs}
%      \end{subfigure}
%      %\hfill
%      \begin{subfigure}[b]{0.23\textwidth}
%          \centering
%          \includegraphics[width=\textwidth]{Figures/TSNE_25_ccs.png}
%         \caption{CCS divergence}
%          \label{fig:tsne-ccs}
%      \end{subfigure}
%      \begin{subfigure}[b]{0.23\textwidth}
%          \centering
%          \includegraphics[width=\textwidth]{Figures/TSNE_25_cs_ccs.png}
%         \caption{CCS \& CS divergence}
%          \label{fig:tsne-cs-ccs}
%      \end{subfigure}
%         \caption{t-SNE visualization of feature trained without adaptation (\ref{fig:tsne-no-ad}), with CS divergence (\ref{fig:tsne-cs}, with CCS divergence (\ref{fig:tsne-ccs}), and with both CCS and CS divergences (\ref{fig:tsne-cs-ccs}).}
%         \label{fig:tsne-overall}
% \end{figure}