activity
20072022
most citedI/O efficient bisimulation partitioning on very large directed acyclic graphs

33 citations · 73 across the 19 of their papers we have counts for

collaborators

23 papers

cs.CG2022

Analysis of a Greedy Heuristic for the Labeling of a Map with a Time-Window Interface

Annika Bonerath, Anne Driemel, Jan-Henrik Haunert +3

In this paper, we analyze the approximation quality of a greedy heuristic for automatic map labeling. As input, we have a set of events, each associated with a label at a fixed pos…

math.MG2022

The limit of Voronoi diagrams as is the bounding-box-area Voronoi diagram

Herman Haverkort, Rolf Klein

We consider the Voronoi diagram of points in the real plane when the distance between two points and is given by where We pro…

cs.CG2022

Minimum-Error Triangulations for Sea Surface Reconstruction

Anna Arutyunova, Anne Driemel, Jan-Henrik Haunert +6

We apply state-of-the-art computational geometry methods to the problem of reconstructing a time-varying sea surface from tide gauge records. Our work builds on a recent article by…

cs.CG2021★ 1 cited

Hyperbolae are the locus of constant angle difference

Herman Haverkort, Rolf Klein

Given two points A,B in the plane, the locus of all points P for which the angles at A and B in the triangle A,B,P have a constant sum is a circular arc, by Thales' theorem. We sho…

cs.CG2020

Plane-filling trails

Herman Haverkort

The order in which plane-filling curves visit points in the plane can be exploited to design efficient algorithms. Typically, the curves are useful because they preserve locality:…

cs.CC2019

Shortest-Path-Preserving Rounding

Herman Haverkort, David Kübel, Elmar Langetepe

Various applications of graphs, in particular applications related to finding shortest paths, naturally get inputs with real weights on the edges. However, for algorithmic or visua…