[bull-ia] Séminaire GDR IA de Dominik Peters: 7 juillet

C’est demain !

>
> Chers collègues,
>
> Le prochain séminaire mensuel du GDR IA sera donné par Dominik Peters
> (https://www.dominik-peters.de/), dont vous trouverez
> les détails ci-dessous. Pour rappel, le but de ces exposés est de
> mettre en lumière, au sein d’un exposé
> accessible à la plus grande partie de la communauté, les domaines
> variés couverts par le GDR et ses activités.
>
> Lien vers la salle virtuelle: https://utc-fr.zoom.us/j/86870419668
>
> Les informations sur les séminaires se trouvent sur la page du GDR IA:
> https://www.gdria.fr/seminaire
>
> Date: le 7/7 à 15h
>
> Titre: Proportional Participatory Budgeting
>
> Résumé: We study voting rules for participatory budgeting, where a group of
> voters collectively decides which projects should be funded using a
> common budget. Many city governments around the world now use
> participatory budgeting to allow their residents to influence how the
> city spends its budget. Most cities handle such elections using the
> most intuitive voting rule: greedily filling a knapsack with projects
> that received the highest number of votes. We argue that this is a bad
> voting rule, because it can ignore the preferences of substantial
> minorities. Instead, we advocate the use of voting rules that are
> proportional: every voter should have roughly equal influence on the
> final budget, and thus different interests should be represented in
> proportion to the number of their supporters. We formalize the notion
> of proportionality as an axiom and design a simple and attractive
> voting rule that satisfies our formal axiom, and that can be evaluated
> in polynomial time. We also prove that a large class of voting rules
> based on optimization cannot achieve proportional outcomes: this is
> surprising because in many other contexts, researchers have found
> specific objective functions that lead to fair outcomes.
>
> Nous tenons à remercier tous les GT qui nous ont fait remonter des
> propositions de séminaires, et tous les GT qui le feront.
>
> Au plaisir de vous “voir” bientôt.
>
> Nicolas et Sébastien (D.)

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