\vspace{-0.2cm}
\begin{table}
	\tiny
	\resizebox{\columnwidth}{!}{
		\begin{tabular}{lm{0.2\linewidth}m{0.25\linewidth}m{0.3\linewidth}l}
			\toprule
			Project                                         & Simulation Technique                         & Focus                                                                          & Stakeholders                              & Modelling Capability                                                                                                                                                                                                   \\
			\midrule
			ExaDigiT~\cite{DBLP:conf/sc/BrewerMKWBHSGGW24}  & CFD/HT, AI/ML                                & Energy Loss\newline Prediction,\newline \fcolorbox{Red}{white}{Heat Modelling} & HPC Engineers and Operators               & \fcolorbox{Red}{white}{3D\textsuperscript{$\star$}}, \fcolorbox{Red}{white}{CH\textsuperscript{$\dingasterisk$}}, VP\textsuperscript{$\star$}, PE\textsuperscript{$\dingasterisk$}, RA, SE\textsuperscript{$\thermod$} \\
			\midrule
			SmartDC~\cite{DBLP:conf/noms/ZhangZLZWC22}      & CFD/HT, BIM, AI/ML                           & \fcolorbox{Red}{white}{Heat Modelling},\newline PUE optimization               & Cloud Datacenter Engineers                & \fcolorbox{Red}{white}{CH\textsuperscript{$\thermod$}}, PE, \fcolorbox{Red}{white}{3D\textsuperscript{$\star$}}                                                                                                        \\
			\midrule
			DyTwin~\cite{DBLP:conf/sc/TaheriBPRHDEWPM24}    & Gaussian Process Regression, AI/ML           & Anomaly Detection                                                              & Cloud Datacenter Operators                & A\textsuperscript{$\star$}, FD, VP\textsuperscript{$\star$}, SE\textsuperscript{$\thermod$}                                                                                                                            \\
			\midrule
			ChatTwin~\cite{DBLP:conf/sensys/LiW0Z0T23}      & \textbf{\footnotesize?}                      & Digital Twin\newline Definition Language                                       & Cloud Datacenter Engineers                & \fcolorbox{Red}{white}{ 3D\textsuperscript{$\star$}}                                                                                                                                                                   \\
			\midrule
			Reducio~\cite{DBLP:conf/sensys/CaoW0022}        & POD, Gaussian\newline Process Modelling (ML) & \fcolorbox{Red}{white}{Heat Modelling}                                         & Edge and Hyper-scale Datacenter Operators & \fcolorbox{Red}{white}{CH\textsuperscript{$\dingasterisk$}, 3D\textsuperscript{$\star$}}, SE                                                                                                                           \\
			\midrule
			NetGraph~\cite{DBLP:conf/sigcomm/HongWDSSHZY21} & Graphs                                       & Network Management                                                             & Cloud Datacenter Operators                & VP\textsuperscript{$\star$}, RA\textsuperscript{$\star$},
			N\textsuperscript{$\star$}, SE\textsuperscript{$\thermod$}                                                                                                                                                                                                                                                                                                                                                                                           \\
			\midrule
			Kalibre~\cite{DBLP:conf/sensys/WangZD0TCWZ20}   & CFD/HT, ML                                   & \fcolorbox{Red}{white}{Heat Modelling}                                         & Cloud Datacenter Engineers                & \fcolorbox{Red}{white}{CH\textsuperscript{$\dingasterisk$}, 3D\textsuperscript{$\star$}}                                                                                                                               \\
			\bottomrule
		\end{tabular}
	}

\end{table}
\tiny \textbf{Table 1.1:} Comparison of selected datacenter digital twins. \textbf{Modelling capability:} \textcolor{Red}{3D = Visualizations}; \textcolor{Red}{CH = Cooling/Heat}, PE = Power/Energy Consumption, A = Anomaly Detection, N = Network Modelling, SE = Scenario Exploration, VP = Virtual Prototyping, FD = Federation, RA = Resource Allocation; \textbf{Data Analytics}: $\dingasterisk$ = Predictive Analysis; $\star$ = Descriptive Analysis, $\thermod$ = Prescriptive Analysis.
% Autonomous decisions (autonomous twinning) from~\cite{DBLP:conf/sc/BrewerMKWBHSGGW24} is inherent to digital twinning -- it is better left unsaid in the table.
% I.e., the foundation of any DT is autonomous decisions, so without them they don't qualify as a DT.
% ChatTwin mentions that they evaluate their system on their own-engineered digital twin, but they absolutely not name it. Who knows why.