10ème Journéee Thématique du groupe COSMOS

Cette journée aura lieu à PARIS, le 02 décembre 2025.

La participation à la journée est libre mais l'inscription est obligatoire pour des soucis d'organisation. Le lien d'inscription est en haut de cette page.

Lieu : Université Jussieu

Orateurs : Elen Anton,  Stéphan Plassard, Jonatha Anselmi, Thomas Hira, Mohamed-Harith Ibrahim, Farah Ait Salaht. 

Exposés : 

Mohamed-Harith Ibrahim : "Gestion adaptative des systèmes énergétiques par apprentissage par renforcement en contexte incertain".
Resumé:  

Elen Anton : "Comparing the performance of the redundancy-d models under the FCFS and ROS scheduling policies".
Resumé:   : In this talk, we analyse the response time of redundancy-d systems under the first-come first-served (FCFS) and random order of service (ROS) scheduling policies. Redundancy has received considerable attention as a dispatching paradigm that promises the potential for significant response time improvements. Previous work on redundancy-d models – with exponentially distributed service times and independent and identically distributed copies – has focused on response time results under FCFS or stability conditions under a wider range of scheduling policies, including ROS, and shows that the stability region coincides under both scheduling policies. We provide the first proof that the FCFS scheduling policy improves the mean response time of the redundancy-d model compared to the ROS policy. To do so, we present a novel coupling technique that exploits the knowledge of the steady-state distribution under the FCFS policy.

Stephan Plassart : "a learning algorithm of energy efficient speed schedules in real time systems".

Jonatha Anselmi : "Adaptive Autoscaling in Serverless Platforms through Non-Stationary Gradient Descent".