Search Results for author: Katrin Casel

Found 3 papers, 1 papers with code

Fair Correlation Clustering in Forests

no code implementations22 Feb 2023 Katrin Casel, Tobias Friedrich, Martin Schirneck, Simon Wietheger

To this end, we consider restricted graph classes which allow us to characterize the distributions of sensitive attributes for which this form of fairness is tractable from a complexity point of view.

Attribute Clustering +1

The Node Weight Dependent Traveling Salesperson Problem: Approximation Algorithms and Randomized Search Heuristics

no code implementations4 Feb 2020 Jakob Bossek, Katrin Casel, Pascal Kerschke, Frank Neumann

In this paper, we investigate the effect of weights on such problems, in the sense that the cost of traveling increases with respect to the weights of nodes already visited during a tour.

From Symmetry to Asymmetry: Generalizing TSP Approximations by Parametrization

1 code implementation6 Nov 2019 Lukas Behrendt, Katrin Casel, Tobias Friedrich, J. A. Gregor Lagodzinski, Alexander Löser, Marcus Wilhelm

Our generalization of the tree doubling algorithm gives a parameterized 3-approximation, where the parameter is the number of asymmetric edges in a given minimum spanning arborescence.

Data Structures and Algorithms

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