
\begin{figure*}[htbp]
    \centering
    \begin{subfigure}{\textwidth}
        \centering
            \resizebox{\textwidth}{!}{%
                \input{gps-overview-figure/cal/calibration-step.tex}
            }
    \end{subfigure}
    
    \vspace{0cm}
    
    \begin{subfigure}{\textwidth}
        \centering
            \resizebox{\textwidth}{!}{%
                \input{gps-overview-figure/test/inference-step.tex}
            }
    \end{subfigure}
    \caption{High-level illustration of the GPS framework:  Calibration approach (top) and Inference procedure (bottom).}
    \label{fig:gps-overview}
\end{figure*}