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Aliaume Lopez
projet-optimisation
Commits
45b3768f
Commit
45b3768f
authored
Jan 11, 2017
by
Aliaume Lopez
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Panuriset
parent
cd40c5be
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rapport/presentation.tex
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rapport/presentation.tex
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45b3768f
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@@ -282,11 +282,25 @@
\begin{frame}
\frametitle
{
Un encadrement de la solution
}
\begin{block}
{
Borne inférieure
}
Permet d'obtenir des bornes inférieures, mais pas de tour approché ! Pourtant on a une information "précieuse".
Permet d'obtenir des bornes inférieures, mais pas de tour approché ! Pourtant on a une information "précieuse"~:
\begin{quote}
Permet d'avoir une
\textbf
{
garantie
}
sur la qualité des tours trouvés
\end{quote}
\[
v
^
*
\leq
TOUR
\leq
APPROX
\]
\[
\rho
_{
TOUR
}
\leq
\rho
_{
v
^
*
}
\]
\end{block}
\begin{alertblock}
{
Approximation
}
Utiliser le glouton sur les résultats du PL.
\begin{alertblock}
{
Construire un tour à partir du PL
}
Utiliser la pondération donnée par le PL comme poids
pour l'algorithme glouton !
\end{alertblock}
\ds
Combiné avec 2-OPT, donne de bons résultats.
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