Michał Jaworski

2 accepted papers

2022

Phragmén Rules for Degressive and Regressive Proportionality

IJCAI 2022poster

We study two concepts of proportionality in the model of approval-based committee elections. In degressive proportionality small minorities of voters are favored in comparison with the standard linear proportionality. Regressive proportionality, on the other hand, requires that larger subdivisions o…

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2020

Evaluating Committees for Representative Democracies: the Distortion and Beyond

Michał Jaworski, Piotr Skowron

IJCAI 2020poster

We study a model where a group of representatives is elected to make a series of decisions on behalf of voters. The quality of such a representative committee is judged based on the extent to which the decisions it makes are consistent with the voters' preferences. We assume the set of issues on whi…

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