6 papers
Probably Approximately Consensus: On the Learning Theory of Finding Common Ground
Carter Blair, Ben Armstrong, Shiri Alouf-Heffetz +2
A primary goal of online deliberation platforms is to identify ideas that are broadly agreeable to a community of users through their expressed preferences. Yet, consensus elicitat…
Query-Based Committee Selection
Itay Asher Zimet, Shiri Alouf-Heffetz, Nimrod Talmon
Purpose: Multiwinner voting rules typically require full knowledge of voter preferences, which becomes impractical in large-scale or attention-limited settings. This paper investig…
The Cost Perspective of Liquid Democracy: Feasibility and Control
Shiri Alouf-Heffetz, Łukasz Janeczko, Grzegorz Lisowski +1
We examine an approval-based model of Liquid Democracy with a budget constraint on voting and delegating costs, aiming to centrally select casting voters ensuring complete represen…
Optimizing Viscous Democracy
Ben Armstrong, Shiri Alouf-Heffetz, Nimrod Talmon
Viscous democracy is a generalization of liquid democracy, a social choice framework in which voters may transitively delegate their votes. In viscous democracy, a "viscosity" fact…
Controlling Delegations in Liquid Democracy
Shiri Alouf-Heffetz, Tanmay Inamdar, Pallavi Jain +2
In liquid democracy, agents can either vote directly or delegate their vote to a different agent of their choice. This results in a power structure in which certain agents possess…
Better Collective Decisions via Uncertainty Reduction
Shiri Alouf-Heffetz, Laurent Bulteau, Edith Elkind +2
We consider an agent community wishing to decide on several binary issues by means of issue-by-issue majority voting. For each issue and each agent, one of the two options is bette…