\begin{figure}[t!]
\centering
\subfigure[SHD]{
\centering
\includegraphics[trim={0.5cm 1.0cm 1.2cm 1.4cm},clip, width=.46\linewidth]{figure/source/experiments/ablation_bandit_shd.pdf}
\label{fig:bandit_shd}
}
\hfil
\subfigure[Learning curve]{
\centering
\includegraphics[trim={0.5cm 1.0cm 1.2cm 1.4cm},clip, width=.46\linewidth]{figure/source/experiments/ablation_bandit_learning_curve.pdf}
\label{fig:bandit_learning_curve}
}
% \vspace{-5pt}
\caption{{Evaluation of CSI identification and learning curves on contextual multi-armed bandit.}}
\label{fig:bandit}
% \vspace{-10pt} % do not use negative vspace unless we have a space issue...
\end{figure}
