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Approximately Fair and Population Consistent Budget Division via Simple Payment Schemes
Haris Aziz, Patrick Lederer, Xinhang Lu +2
In approval-based budget division, a budget needs to be distributed to candidates based on the voters' approval ballots over these candidates. In the pursuit of a simple, consisten…
Neighborhood Stability in Assignments on Graphs
Haris Aziz, Grzegorz Lisowski, Mashbat Suzuki +1
We study the problem of assigning agents to the vertices of a graph such that no pair of neighbors can benefit from swapping assignments -- a property we term neighborhood stabilit…
Committee Monotonicity and Proportional Representation for Ranked Preferences
Haris Aziz, Patrick Lederer, Dominik Peters +2
We study committee voting rules under ranked preferences, which map the voters' preference relations to a subset of the alternatives of predefined size. In this setting, the compat…
Fair Lotteries for Participatory Budgeting
Haris Aziz, Xinhang Lu, Mashbat Suzuki +2
In pursuit of participatory budgeting (PB) outcomes with broader fairness guarantees, we initiate the study of lotteries over discrete PB outcomes. As the projects have heterogeneo…