2 citations · 4 across the 10 of their papers we have counts for
8 papers · 1 filter
Control in Hedonic Games
Jiehua Chen, Jakob Guttmann, Merisa Mustajbašić +1
We initiate the study of control in hedonic games, where an external actor influences coalition formation by adding or deleting agents. We consider three basic control goals (1) en…
Partitioned Combinatorial Optimization Games
Jiehua Chen, Christian Hatschka, Sofia Simola
We propose a class of cooperative games, called d Partitioned Compbinatorial Optimization Games (PCOGs). The input of PCOG consists of a set of agents and a combinatorial structure…
FPT-Approximability of Stable Matching Problems
Jiehua Chen, Sanjukta Roy, Sofia Simola
We study parameterized approximability of three optimization problems related to stable matching: (1) Min-BP-SMI: Given a stable marriage instance and a number k, find a size-at-le…
Parameterized Complexity of Hedonic Games with Enemy-Oriented Preferences
Martin Durand, Laurin Erlacher, Johanne Müller Vistisen +1
Hedonic games model settings in which a set of agents have to be partitioned into groups which we call coalitions. In the enemy aversion model, each agent has friends and enemies,…
Computational Social Choice: Parameterized Complexity and Challenges
Jiehua Chen, Christian Hatschka, Sofia Simola
We survey two key problems-Multi-Winner Determination and Hedonic Games in Computational Social Choice, with a special focus on their parameterized complexity, and propose some res…
Parameterized Algorithms for Optimal Refugee Resettlement
Jiehua Chen, Ildikó Schlotter, Sofia Simola
We study variants of the Optimal Refugee Resettlement problem where a set of refugee families need to be allocated to a set of possible places of resettlement in a feasible…
Game Implementation: What Are the Obstructions?
Jiehua Chen, Sebastian Vincent Haydn, Negar Layegh Khavidaki +2
In many applications, we want to influence the decisions of independent agents by designing incentives for their actions. We revisit a fundamental problem in this area, called GAME…
Hedonic Games With Friends, Enemies, and Neutrals: Resolving Open Questions and Fine-Grained Complexity
Jiehua Chen, Gergely Csáji, Sanjukta Roy +1
We investigate verification and existence problems for prominent stability concepts in hedonic games with friends, enemies, and optionally with neutrals [8, 16]. We resolve several…