By classic results in social choice theory, any reasonable preferential voting method
sometimes gives individuals an incentive to report an insincere preference. The extent to …

The presence of big data, online systems, collaborations of remote agents, distributed
knowledge, social media interaction, and generally, digital globalization, changes the way …

We consider a set of voters making a collective decision via simultaneous vote on two binary
issues. Voters' preferences are captured by payoffs assigned to combinations of outcomes …

Iterative voting allows a group of agents to take a collective decision in a dynamic fashion: a
series of plurality elections are staged, making the relative scores of the candidates public …

Direct democracy is often proposed as a possible solution to the 21st-century problems of
democracy. However, this suggestion clashes with the size and complexity of 21st-century …

Collective decisions among human and artificial agents can be enhanced by allowing for
more interaction among decision-makers and by letting them express more information …

The legitimacy of bottom-up democratic processes for the distribution of public funds by
policy-makers is challenging and complex. Participatory budgeting is such a process, where …

We consider synchronized iterative voting in the Approval Voting system. We give examples
with a Condorcet winner where voters apply simple, sincere, consistent strategies but where …

In this paper we tackle the challenge of Multi Agents Reinforcement Learning (MARL) in a
situation of collective social choice. We evaluate the learning performance of multiple …

In the last decades, intelligent transport systems have gained importance. We consider a
subarea of cooperative traffic management, namely collective decision-making in groups of …