3 papers
cs.CY2026
Algorithmic Shortlisting in Participatory Budgeting
Juan Zambrano, Clément Contet, Jairo Gudiño-Rosero +3
Participatory budgeting is a democratic innovation that allows citizens to propose and vote on public investment projects. To help organizers manage large volumes of submissions, w…
cs.CY2026
Prompt Injection Vulnerability of Consensus Generating Applications in Digital Democracy
Jairo Gudiño-Rosero, Clément Contet, Umberto Grandi +1
Large Language Models (LLMs) are gaining traction as a method to generate consensus statements and aggregate preferences in digital democracy experiments. Yet, LLMs could introduce…
cs.AI2026
Explaining Tournament Solutions with Minimal Supports
Clément Contet, Umberto Grandi, Jérôme Mengin
Tournaments are widely used models to represent pairwise dominance between candidates, alternatives, or teams. We study the problem of providing certified explanations for why a ca…