5 papers
Power in Liquid Democracy: A Network Centrality Approach
Davide Grossi, Andreas Nitsche, Georgios Papasotiropoulos +3
This paper develops a computationally tractable framework for measuring voters' power in collective decision-making platforms that support transitive and suspendable delegations---…
Fairness in the Multi-Secretary Problem
Georgios Papasotiropoulos, Zein Pishbin
This paper bridges two perspectives: it studies the multi-secretary problem through the fairness lens of social choice, and examines multi-winner elections from the viewpoint of on…
Proportional Committee Elections with Positive and Negative Votes
Sonja Kraiczy, Georgios Papasotiropoulos, Grzegorz Pierczyński +1
In the classic committee election setting each voter approves a subset of candidates and the goal is to select winners based on these preferences. A central focus of recent res…
Proportional Selection in Networks
Georgios Papasotiropoulos, Oskar Skibski, Piotr Skowron +1
We address the problem of selecting representative nodes from a network, aiming to achieve two objectives: identifying the most influential nodes and ensuring the selection pro…
Method of Equal Shares with Bounded Overspending
Georgios Papasotiropoulos, Seyedeh Zeinab Pishbin, Oskar Skibski +2
In participatory budgeting (PB), voters decide through voting which subset of projects to fund within a given budget. Proportionality in the context of PB is crucial to ensure equa…