Search Results for author: Jiehua Chen

Found 4 papers, 0 papers with code

Parameterized Intractability for Multi-Winner Election under the Chamberlin-Courant Rule and the Monroe Rule

no code implementations24 Feb 2022 Jiehua Chen, Sanjukta Roy

Answering an open question by Betzler et al. [Betzler et al., JAIR'13], we resolve the parameterized complexity of the multi-winner determination problem under two famous representation voting rules: the Chamberlin-Courant (in short CC) rule [Chamberlin and Courant, APSR'83] and the Monroe rule [Monroe, APSR'95].

Open-Ended Question Answering

Participatory Budgeting with Donations and Diversity Constraints

no code implementations30 Apr 2021 Jiehua Chen, Martin Lackner, Jan Maly

Participatory budgeting (PB) is a democratic process where citizens jointly decide on how to allocate public funds to indivisible projects.

Reaching Stable Marriage via Divorces is Hard

no code implementations28 Jun 2019 Jiehua Chen

We study the Reaching Stable Marriage via Divorces (DivorceSM) problem of deciding, given a Stable Marriage instance and an initial matching $M$ , whether there exists a stable matching which is reachable from $M$ by divorce operations as introduced by Knuth [12].

Computer Science and Game Theory

Elections with Few Voters: Candidate Control Can Be Easy

no code implementations28 Nov 2014 Jiehua Chen, Piotr Faliszewski, Rolf Niedermeier, Nimrod Talmon

We study the computational complexity of candidate control in elections with few voters, that is, we consider the parameterized complexity of candidate control in elections with respect to the number of voters as a parameter.

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