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Proportionality in Thumbs Up and Down Voting. Sonja Kraiczy, Georgios Papasotiropoulos, Grzegorz Pierczyński, Piotr Skowron.
accepted at the non-archival workshops on New Directions in Social Choice at EC'25 and COMSOC workshop; currently under submission to a conference
[paper]
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Proportional Selection in Networks. Georgios Papasotiropoulos, Oskar Skibski, Piotr Skowron, Tomasz Wąs.
accepted at the non-archival workshops on New Directions in Social Choice at EC'25 and COMSOC workshop; currently under submission to a conference
[paper]
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Cycles in Liquid Democracy: A Game-Theoretic Justification. Markus Brill, Rachael Colley, Anne-Marie George, Grzegorz Lisowski, Georgios Papasotiropoulos, Ulrike Schmidt-Kraepelin.
accepted at the non-archival Conference of the European Network for Digital Democracy and, as a poster, at the non-archival Amsterdam/Saint-Etienne Workshop on Social Choice and at the COMSOC workshop; currently under submission to a conference
[paper]
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Fairness in the Multi-Secretary Problem. Georgios Papasotiropoulos, Zein Pishbin
currently under submission to a conference
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On Nash Equilibria in Participatory Budgeting with Donations and Beyond. Grzegorz Lisowski, Georgios Papasotiropoulos, Grzegorz Pierczyński, Krzysztof Rogowski
currently under submission to a conference
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Participatory Budgeting with Donations: The Case of Selective Voters. Philip Lazos, Evangelos Markakis, Georgios Papasotiropoulos.
In the proceedings of the 28th European Conference on Artificial Intelligence (ECAI'25).
[paper]
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Method of Equal Shares with Bounded Overspending. Georgios Papasotiropoulos, Seyedeh Zeinab Pishbin, Oskar Skibski, Piotr Skowron, Tomasz Wąs.
In the proceedings of the 26th ACM Conference on Economics and Computation (EC'25).
accepted at the non-archival COMSOC workshop with a spot for an oral presentation
[paper] [slides]
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The Cost Perspective of Liquid Democracy: Feasibility and Control. Shiri Alouf-Heffetz, Łukasz Janeczko, Grzegorz Lisowski, Georgios Papasotiropoulos.
In the proceedings of the 39th AAAI Conference on Artificial Intelligence
(AAAI '25).
[paper]
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As Time Goes By: Adding a Temporal Dimension Towards Resolving Delegations in Liquid Democracy. Evangelos Markakis, Georgios Papasotiropoulos.
In the proceedings of the 8th International Conference on Algorithmic Decision Theory
(ADT '24).
[paper] [slides]
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On the Potential and Limitations of Proxy Voting: Delegation with Incomplete Votes. Georgios Amanatidis, Aris Filos-Ratsikas, Philip Lazos, Evangelos Markakis, Georgios Papasotiropoulos.
In the proceedings of the 23rd International Conference on Autonomous Agents and Multi-Agent Systems (AAMAS'24).
[paper] [slides] [poster]
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Proportionality Guarantees in Elections with Interdependent Issues. Markus Brill, Evangelos Markakis, Georgios Papasotiropoulos, Jannik Peters.
In the proceedings of the 32nd International Joint Conference on Artificial Intelligence (IJCAI'23).
[paper]
[slides] [poster]
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On Improved Interval Cover Mechanisms for Crowdsourcing Markets. Evangelos Markakis, Georgios Papasotiropoulos, Artem Tsikiridis.
In the proceedings of the 15th International Symposium on Algorithmic Game Theory (SAGT'22).
[paper]
[slides]
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An Approval-Based Model for Single-Step Liquid Democracy. Evangelos Markakis, Georgios Papasotiropoulos.
In the proceedings of the 14th International Symposium on Algorithmic Game Theory (SAGT'21).
[paper]
[slides]
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Winner Determination and Strategic Control in Conditional Approval Voting. Evangelos Markakis, Georgios Papasotiropoulos.
In the proceedings of the 30th International Joint Conference on Artificial Intelligence (IJCAI'21).
[paper] [poster]
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Computational Aspects of Conditional Minisum Approval Voting in Elections with Interdependent Issues. Evangelos Markakis, Georgios Papasotiropoulos.
In the proceedings of the 29th International Joint Conference on Artificial Intelligence (IJCAI'20).
[paper]
[presentation]
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On the Complexity of Winner Determination and Strategic Control in Conditional Approval Voting. Evangelos Markakis, Georgios Papasotiropoulos.
Theoretical Computer Science.
[pdf]
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On the Tractability Landscape of Conditional Minisum Approval Voting Rule. Georgios Amanatidis, Michael Lampis, Evangelos Markakis, Georgios Papasotiropoulos.
Information Processing Letters--special issue on Economics and Computation.
[paper] [pdf]
