, L'étude des valeurs extrêmes d'un processus passe naturellement par l'analyse du maximum d'un échantillon de taille n donnée : M n = max

, Si on note x F = sup {x ? R : F (x) < 1}, alors M n ? x F presque sûrement si n ? ?

, D'autre part, la distribution de M n est connue exactement : P(M n ? x) =

, Théorème de Fisher et Tippet S'il existe des suites de réels (a n ) n?N > 0, (b n ) n?N et une distribution non dégénérée G telles que

, Étude stochastique dans le SGBD Temps Réel pour comparer des transactions plates et étendues temps réel. Par exemple. Avec EDF l'amélioration atteint 17% (respectivement 11% ) avec GEDF a=0.5 lorsque le Quantum = 30

, ne dépasse pas 5% avec EDF et 3% avec GEDF a=0.5 . Afin d'améliorer notre analyse, nous avons fait varier le pourcentage de données en temps réel avec différentes capacités de calcul

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