
\subsection{Comparison of results}
	
	From the table~\ref{tab:ri-comparison-results} we can see that for \verb|SC_545| and \verb|MAX_682| the Tabu Search is the best choice but it needs 8 minutes of computation versus only a few seconds of Local Search. In the \verb|DS_1120| instance instead Tabu Search performs poorly, this happens because the 60 seconds for each run it's not a sufficient time to get a local minimum. I think this is due to the fact that with 1120 nodes the evaluation of neighbours needs much more time than with others instances.

	\begin{table}[hb]
		\centering
		\begin{tabular}{llrrrr}
			\toprule
			\textbf{Instance} & \textbf{Solver} & \textbf{Avg Value} & \textbf{Best Value} & \textbf{Avg T (s)} & \textbf{Tot T (s)} \\
			\toprule
			\verb|SC_545|           & TS BI AC        & 16250.2            & 15991               & 60.01                 & 480.06                \\
			& LS BI           & 16809.8            & 16440               & 0.45                  & 3.59                  \\
			& LS FI           & 16504.8            & 16231               & 0.70                  & 5.61                  \\
			\midrule
			\verb|MAX_682|          & TS BI AC        & 5276730.0          & 5115970             & 60.02                 & 480.12                \\
			& LS BI           & 5350680.0          & 5187620             & 0.86       &  6.92           \\
			& LS FI           & 5356200.0          & 5272060             & 1.44                 &   11.56                \\
			\midrule
			\verb|DS_1120|          & TS BI AC        & 35080600.0         & 33428000            & 60.04                 & 480.36                \\
			& LS BI           & 17051200.0         & 16969100            & 4.99                & 39.94                \\
			& LS FI           & 16921800.0         & 16742900            & 8.88                & 71.01    \\
			\bottomrule             
		\end{tabular}
		\caption{Comparison of results between Local Search and Tabu Search with real instances (T = Time).}
		\label{tab:ri-comparison-results}
	\end{table}