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Chapter and Conference Paper
More Effort Towards Multiagent Knapsack
In this paper, we study two multiagent variants of the knapsack problem. Fluschnik et al. [AAAI 2019] studied the model in which each agent expresses its preference by assigning a utility to every item. They s...
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Chapter and Conference Paper
Preserving Consistency for Liquid Knapsack Voting
Liquid Democracy (LD) uses transitive delegations to facilitate joint decision making. In its simplest form, it is used for binary decisions, however its promise holds also for more advanced voting settings. H...
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Chapter and Conference Paper
Gehrlein Stable Committee with Multi-modal Preferences
Inspired by Gehrlein stability in multiwinner election, in this paper, we define several notions of stability that are applicable in multiwinner elections with multimodal preferences, a model recently proposed...
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Chapter and Conference Paper
Gerrymandering on Graphs: Computational Complexity and Parameterized Algorithms
This paper studies gerrymandering on graphs from a computational viewpoint (introduced by Cohen-Zemach et al. [AAMAS 2018] and continued by Ito et al. [AAMAS 2019]). Our contributions are two-fold: conceptual and...
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Chapter and Conference Paper
Circumventing Connectivity for Kernelization
Classical vertex subset problems demanding connectivity are of the following form: given an input graph G on n vertices and an integer k, find a set S of at most k vertices that satisfies a property and G[S] is c...
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Article
Gehrlein stability in committee selection: parameterized hardness and algorithms
In a multiwinner election based on the Condorcet criterion, we are given a set of candidates, and a set of voters with strict preference rankings over the candidates. A committee is weakly Gehrlein stable (WGS) i...
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Chapter and Conference Paper
List Colouring of Graphs Using a Genetic Algorithm
The List Colouring Problem (LCP) is an NP-Hard optimization problem in which the goal is to find a proper list colouring of a graph G = (V, E) such that the number of colours used is minimized. This paper deals w...
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Chapter and Conference Paper
Conflict Free Version of Covering Problems on Graphs: Classical and Parameterized
Let \(\mathrm{\Pi }\) be a family of graphs. In the classical
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Article
Minimizing cyclic cutwidth of graphs using a memetic algorithm
Cyclic cutwidth minimization problem (CCMP) consists of embedding a graph onto a circle such that the maximum cutwidth in a region is minimized. It is an NP-complete problem and for some classes of graphs, exa...
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Chapter and Conference Paper
Branch and Bound Algorithm for Vertex Bisection Minimization Problem
Vertex Bisection Minimization problem (VBMP) consists of partitioning the vertex set V of a graph G = (V, E) into two sets B and B′ where ...