7 papers
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…
Multi-Organizational Scheduling: Individual Rationality, Optimality, and Complexity
Jiehua Chen, Martin Durand, Christian Hatschka
We investigate multi-organizational scheduling problems, building upon the framework introduced by Pascual et al.[2009]. In this setting, multiple organizations each own a set of i…
Control and Bribery in Stable Marriage and Stable Roommates: A Complete Complexity Landscape
Jiehua Chen, Ildikó Schlotter
We study control and bribery problems for stable matchings: A central authority (the controller, resp. briber) may add agents, delete agents, delete acceptable pairs, swap two adja…
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…