activity
20182026
most citedOn the Complexity of Robust Bilevel Optimization With Uncertain Follower's Objective

9 citations · 19 across the 13 of their papers we have counts for

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Showing 2026Show all

5 papers · 1 filter

cs.CG2026

Separating Measures by Hyperplanes

José Correa, Svenja M. Griesbach, Elfarouk Harb +4

Given red and blue points in , connect every red point to every blue point and weigh each segment by its length under a fixed norm. What fraction of the total weight…

cs.DS2026

Optimal Online Weighted Connectivity Augmentation

Mohit Garg, Felix Hommelsheim, Alexander Lindermayr

In the online Weighted Connectivity Augmentation Problem (WCAP), we are given a -edge-connected graph on vertices and a set of additional edges, called links, with nonnegati…

cs.DS2026

Tight Bounds for -Approximation for Minimum Spanning Trees in Doubling Metrics

Jan Höckendorff, Felix Hommelsheim, Christian Sohler +1

The minimum spanning tree (MST) problem is one of the most basic optimization problems on metric spaces and graphs. We study the problem of computing a -approximation to the…

cs.DS2026

Approximation Algorithms for Discounted Graph Search with Norm Objectives

Svenja M. Griesbach, Felix Hommelsheim, Max Klimm

We introduce a unified framework for classical search and routing problems, including pathwise search, expanding search, the minimum spanning tree problem, and the traveling salesp…

cs.DM2026

A Complexity Dichotomy for Generalized Rainbow Matchings Based on Color Classes

Felix Hommelsheim, Pia Jehmlich, Moritz Mühlenthaler

Given an edge-colored graph, the Maximum Rainbow Matching problem asks for a maximum-cardinality matching of the graph that contains at most one edge from each color. We provide th…