Program


Tuesday April 8


18:00 – 20:00

Welcome reception (dining hall)

Wednesday April 9


8:30

Registration

8:50

Welcome remarks (Conference hall)

9:00

Invited talk (Conference hall)
Oswin Aichholzer
Flips in Plane Graphs - Old Problems, New Results


Chair: TBA

10:00

Fast forward session - S1, S2, S3 (Conference hall)

10:40

Coffee Break

11:15

Contributed talks

Session S1.A (Conference hall) Chair: TBA
11:15 - 11:30

Jonas Friemel, David Liedtke and Christian Scheffer


Efficient Shape Reconfiguration by Hybrid Programmable Matter

11:30 - 11:45

Hugo Akitaya, Sándor Fekete, Peter Kramer, Saba Molaei, Christian Rieck, Frederick Stock and Tobias Wallner


Sliding Squares in Parallel

11:45 - 12:00

Aaron Becker, Sándor Fekete, Jonas Friemel, Ramin Kosfeld 🎓, Peter Kramer, Harm Kube, Christian Rieck, Christian Scheffer and Arne Schmidt


Moving Matter: Efficient Reconfiguration of Tile Arrangements by a Single Active Robot

12:00 - 12:15

Matthias Artmann 🎓, Andreas Padalkin and Christian Scheideler


On the Shape Containment Problem within the Amoebot Model with Reconfigurable Circuits

12:15 - 12:30

David Kirkpatrick and Paul Liu


Minimum-length coordinated motions for two convex centrally-symmetric robots

12:30 - 12:45

Kenneth Cheung, Irina Kostitsyna and Tom Peters


Assembly Order Planning for Modular Structures by Autonomous Multi-Robot Systems

Session S1.B (Marble hall) Chair: TBA
11:15 - 11:30

Eliot Robson, Jack Spalding-Jamieson and Da Wei Zheng


The Analytic Arc Cover Problem and its Applications to Contiguous Art Gallery, Polygon Separation, and Shape Carving

11:30 - 11:45

Emeric Gioan and Yann Marin 🎓


Computation of the canonical tree decomposition of a rank-3 uniform oriented matroid into mutually avoiding parts

11:45 - 12:00

Jacobus Conradi and Anne Driemel


Finding Complex Patterns in Trajectory Data via Geometric Set Cover

12:00 - 12:15

Sergey Bereg, Jesús Capitán, José Miguel Díaz Bañez, José Manuel Higes López, Miguel Angel Pérez Cutiñoi, Vanesa Sánchez and Inmaculada Ventura


Optimal covering of rectangular grid graphs with tours of constrained length

12:15 - 12:30

Aaron Becker, Sándor Fekete, Mariem Guitouni, Chek-Manh Loi 🎓and Michael Perk


Multi-Covering a Point Set by m Disks with Minimum Total Area

12:30 - 12:45

Phillip Keldenich, Dominik Krupke and Jan Siemsen


Computing Optimal Solutions for Chromatic Art Gallery Problems

12:45

Lunch

14:15

Contributed talks

Session 2.A (Conference hall)Chair: TBA
14:15 - 14:30

Anna Brötzner, Omrit Filtser, Bengt J. Nilsson, Christian Rieck and Christiane Schmidt


Segment Watchman Routes

14:30 - 14:45

Anna Brötzner 🎓, Bengt J. Nilsson and Christiane Schmidt


Two Watchmen’s Routes in Staircase Polygons

14:45 - 15:00

Nazanin Hadiniya, Mohammad Ghodsi and Wolfgang Mulzer


Guarding an Orthogonal Polygon with the minimum number of Sliding Cameras placed on the vertical edges

15:00 - 15:15

Vahideh Keikha, Maarten Löffler, Maria Saumell and Pavel Valtr


Guarding a 1.5D terrain with Imprecise Viewpoints

15:15 - 15:30

Michelle Reimann and Fabian Stehn


Romeo and Juliet have a dog - Shortest paths to visibility for three agents inside simple polygons

Session 2.B (Marble hall)Chair: TBA
14:15 - 14:30

Thijs van der Horst 🎓, Marc van Kreveld, Tim Ophelders and Bettina Speckmann


The Geodesic Fréchet Distance Between Two Curves Bounding a Simple Polygon

14:30 - 14:45

Lotte Blank 🎓, Jacobus Conradi, Anne Driemel, Benedikt Kolbe, André Nusser and Marena Richter


Transforming Dogs on the Line: On the Fréchet Distance Under Translation in 1D

14:45 - 15:00

Ivor van der Hoog, Eva Rotenberg and Lasse Wulf


Discrete Fréchet Distance is Also Hard in Unweighted Planar Graphs

15:00 - 15:15

Marena Richter 🎓, Anne Driemel, Maike Buchin, Sampson Wong and Peyman Afshani


Property Testing of Curve Similarity

15:15 - 15:30

Florestan Brunck, Maarten Löffler and Rodrigo Silveira


A curve with rotation number one that is not universal for beacon routing

15:30

Coffee Break

16:00

Contributed talks

Session 3.A (Conference hall)Chair: TBA
16:00 - 16:15

Evanthia Papadopoulou, Martin Suderland and Zeyu Wang


A collapse algorithm for farthest Voronoi diagrams in three dimensions

16:15 - 16:30

Evanthia Papadopoulou, Martin Suderland and Zeyu Wang


Voronoi Diagrams of Four Lines in Three Dimensions

16:30 - 16:45

Javier Perera-Lago, Álvaro Torras-Casas, Jérôme Guzzi and Rocio Gonzalez-Diaz


The Induced Matching Distance: A Novel Topological Metric with Applications in Robotics

16:45 - 17:00

Maike Buchin and Lea Thiel 🎓


Extending the contour tree distance to embedded graphs

17:00 - 17:15

Mats Bierwirth, Julia Hütte, Bettina Speckmann and Patrick Schnider


Bounds for k-centers of point sets under L∞-bottleneck distance

17:15 - 17:30

Wouter Meulemans, Kevin Verbeek and Jules Wulms


An Approximation Lower Bound for Topologically Stable Stateless Kinetic Euclidean MSTs

Session 3.B (Marble hall)Chair: TBA
16:00 - 16:15

Miriam Goetze, Michael Hoffmann, Ignaz Rutter and Torsten Ueckerdt


Crossing Number of 3-Plane Drawings

16:15 - 16:30

Michael Hoffmann, Stefan Felsner, Till Miltzow, Shengzhe Wang, Emo Welzl, Hannah Rotzoll and Tomas Hruz


On Local and Global Crossing Numbers

16:30 - 16:45

Miriam Münch and Ignaz Rutter


Parameterized Algorithms for Crossing Number with Forbidden Topological Crossing Patterns

16:45 - 17:00

Patrizio Angelini, Carla Binucci, Giuseppe Di Battista, Emilio Di Giacomo, Walter Didimo, Fabrizio Grosso, Giacomo Ortali and Ioannis G. Tollis


Unit Edge-Length Rectilinear Drawings with Crossings and Rectangular Faces

17:00 - 17:15

Maria Axenovich, Leon Kießle and Arsenii Sagdeev


Faces of maximal plane graphs without short cycles

17:15 - 17:30

Oswin Aichholzer and Joseph Dorfer 🎓


A Linear Time Algorithm for Finding Minimum Flip Sequences between Plane Spanning Paths in Convex Point Sets

17:30 - 18:30

Business meeting



Conference hall

Thursday April 10


9:00

Invited talk (Conference room)
Eva Rotenberg
How to draw a changing graph


Chair: TBA

10:00

Fast forward session - S4, S5, S6 (Conference hall)

10:25

Coffee Break

11:00

Contributed talks

Session 4.A (Conference room)Chair: TBA
11:00 - 11:15

Emil Toftegaard Gæde 🎓, Ivor van der Hoogh, Eva Rotenberg and Tord Stordalen


Dynamic Maintenance of a Learned Index

11:15 - 11:30

Maike Buchin and Jan Erik Swiadek 🎓


Valleys for Continuous Dynamic Time Warping

11:30 - 11:45

Sándor Fekete, Linda Kleist, Fabian Kollhoff, Chek-Manh Loi and Michael Perk


Approximation Algorithms for Lawn Mowing with Obstacles

Session 4.B (Marble room)Chair: TBA
11:00 - 11:15

Michael A. Bekos, Carla Binucci, Emilio Di Giacomo, Walter Didimo, Luca Grilli, Maria Eleni Pavlidi 🎓, Alessandra Tappini and Alexandra Weinberger


Defective Linear Layouts of Graphs

11:15 - 11:30

Maxim Snoep, Bettina Speckmann and Kevin Verbeek


Polycube Segmentations via Dual Loops

11:30 - 11:45

Johanna Ockenfels, Yoshio Okamoto and Patrick Schnider


Chasing puppies on orthogonal straight-line plane graphs

11:45

Short Break

12:00

Contributed talks

Session 5.A (Conference room)Chair: TBA
12:00 - 12:15

Sándor Fekete, Rouven Kniep, Dominik Krupke and Michael Perk


A Branch-and-Bound Algorithm for the Traveling Salesman Problem with Neighborhoods

12:15 - 12:30

Sándor Fekete, Dominik Krupke, Christian Rieck, Arne Schmidt and Tobias Wallner


Getting Better All the Time? Harmonic and Cumulative Traveling Salesman Problems

12:30 - 12:45

Benjamin Aram Berendsohn, Hwi Kim and László Kozma


Balanced TSP partitioning

Session 5.B (Marble room)Chair: TBA
12:00 - 12:15

Catarina Avelino, Hoi Ping Luk and Altino Santos


Dihedral f-Tilings of the Sphere Induced by the Möbius Triangle (2,3,4)

12:15 - 12:30

Andrea de Las Heras Parrilla, David Flores-Peñaloza, Clemens Huemer and David Orden


Containment results on points and spheres

12:30 - 12:45

Helena Bergold, Arun Kumar Das, Robert Lauff, Felix Schröder, Manfred Scheucher and Marie Diana Sieper


On Triangular Separation of Bichromatic Point Sets

12:45

Lunch

14:15

Contributed talks

Session 6.A (Conference room)Chair: TBA
14:15 - 14:30

Tim Ophelders and Anna Schenfisch


An Order for Higher-Dimensional Simplex Sweeps

14:30 - 14:45

Boris Aronov, Sang Won Bae, Otfried Cheong, David Eppstein, Christian Knauer and Raimund Seidel


Better Late Than Never: the Cmoplexity of Arrangements of Polyhedra

14:45 - 15:00

Jean Cardinal, Xavier Goaoc and Sarah Wajsbrot 🎓


Hitting Affine Families of Polyhedra, with Applications to Robust Optimization

15:00 - 15:15

Édouard Bonnet and Kristóf Huszár


On the Twin-Width of Smooth Manifolds

15:15 - 15:30

Marguerite Bin 🎓


A fractional Helly theorem for set systems with slowly growing homological shatter function

Session 6.B (Marble room)Chair: TBA
14:15 - 14:30

Jesse Beisegel, Katharina Klost, Kristin Knorr, Fabienne Ratajczak and Robert Scheffler


Partially Ordered Hamiltonian Paths of Grid Graphs

14:30 - 14:45

John Iacono and Yakov Nekrich


Incremental Planar Nearest Neighbor Queries with Optimal Query Time

14:45 - 15:00

Erwin Glazenburg and Frank Staals


Strictly output sensitive color frequency reporting

15:00 - 15:15

Katharina Klost, Kristin Knorr and Wolfgang Mulzer


A Robust Algorithm for Finding Triangles in Disk Graphs

15:15 - 15:30

Alexander Baumann, Katharina Klost, Kristin Knorr and Wolfgang Mulzer


Dynamic Balanced Clique Separators for Disk Graphs

16:00

Conference trip to Mělník

19:00 - 22:00

Conference banquet



Friday April 11


9:00

Invited talk (Conference hall)
Uli Wagner
TBA


Chair: TBA

10:00

Fast forward session - S7, S8, S9 (Conference hall)

10:30

Coffee Break

11:00

Contributed talks

Session 7.A (Conference hall)Chair: TBA
11:00 - 11:15

Yan Alves Radtke, Balázs Keszegh and Robert Lauff


On Triangles in Colored Pseudoline Arrangements

11:15 - 11:30

Justin Dallant


Improved Bound on the Number of Pseudoline Arrangements via the Zone Theorem

11:30 - 11:45

Michael Wilhelmi


Mutations and Euclideaness in pseudosphere arrangements

11:45 - 12:00

Günter Rote


NumPSLA — An experimental research tool for pseudoline arrangements and order types

Session 7.BChair: TBA
11:00 - 11:15

Sabine Cornelsen, Henry Förster, Siddharth Gupta, Stephen Kobourov and Johannes Zink


Visualizing Hypergraphs as Metro Maps: Drawing Paths with Few Bends in Trees and Cacti

11:15 - 11:30

Johann Hartleb, Marie Schmidt, Samuel Wolf 🎓 and Alexander Wolff


Visualization of Event Graphs for Train Schedules

11:30 - 11:45

Thijs Beurskens, Steven van den Broek, Arjen Simons, Willem Sonke, Kevin Verbeek, Tim Ophelders, Michael Hoffmann and Bettina Speckmann


ParkView: Visualizing Monotone Interleavings

11:45 - 12:00

Annika Bonerath, William Evans, Jan-Henrik Haunert, David Kirkpatrick and Stephen Kobourov


Disc Placement for Dynamic Bubble Charts

12:00

Short Break

12:15

Contributed talks

Session 8.A (Conference room)Chair: TBA
12:15 - 12:30

Kevin Buchin, Antonia Kalb, Anil Maheshwari, Michiel Smid, Carolin Rehs, Sampson Wong and Saeed Odak


Computing Oriented Spanners and their Dilation

12:30 - 12:45

Kevin Buchin, Carolin Rehs and Torben Scheele


Geometric spanners of bounded tree-width

12:45 - 13:00

Sándor Fekete, Phillip Keldenich and Michael Perk


Exact Algorithms for Minimum Dilation Triangulation

Session 8.B (Marble room)Chair: TBA
12:15 - 12:30

Oswin Aichholzer, Joseph Dorfer 🎓 and Birgit Vogtenhuber


Flipping Plane Spanning Trees Compatibly

12:30 - 12:45

Carla Binucci, Fabrizio Montecchiani, Daniel Perz and Alessandra Tappini


Flipping Matchings is Hard

12:45 - 13:00

Florestan Brunck


On the Non-locality of Edge-Insertions

13:00

Lunch

14:30

Contributed talks

Session 9.A (Conference hall)Chair: TBA
14:30 - 14:45

Steven van den Broek, Marc van Kreveld, Wouter Meulemans and Arjen Simons 🎓


Minimizing Vertical Length in Linked Bar Charts

14:45 - 15:00

Thomas Depian, Carolina Haase, Martin Nöllenburg and André Schulz


On Planar Unit-Length Linear Linkages in Polygonal Domains

15:00 - 15:15

Patricia Bachmann, Anna Brötzner, Miriam Goetze, Philipp Kindermann, Matthias Pfretzschner and Soeren Terziadis


Saturated Drawings of Geometric Thickness k

15:15 - 15:30

Marco Ricci, Jonathan Rollin, André Schulz and Alexandra Weinberger


On plane cycles in geometric multipartite graphs

15:30 - 15:45

Alexander Dobler 🎓 and Jakob Roithinger


Layered Graph Drawing with Few Gaps and Few Crossings

Session 9.B (Marble hall)Chair: TBA
14:30 - 14:45

Katharina Klost, Marc van Kreveld, Daniel Perz, Günter Rote and Josef Tkadlec


Minimum spanning blob-trees

15:00 - 15:15

Thomas C. van Dijk, Wolf Kißler, Lukas Plätz 🎓, Marena Richter and Jonathan Rollin


On the Spectrum from Convex to Connected r-gather on Graphs

15:30 - 15:45

Thomas Depian, Simon D. Fink, Boris Klemz, Robert Ganian, Martin Nöllenburg and Marie Diana Sieper


Partial Level Planarity Parameterized by the Size of the Missing Graph

14:45 - 15:00

Eliška Červenková


Construction of 1-planar unit distance graphs with more edges than matchstick graphs

15:15 - 15:30

Petr Chmel and Vít Jelínek.


Representing Graphs by Unions of Line Segments

15:45 - 16:05

Awards and closing



Conference hall


Contact



Email: eurocg25@kam.mff.cuni.cz
Registration (Anna Kotěšovcová): conforg@conforg.cz

Organized by:
MFF UK

In cooperation with:
CAS
CVUT

Local arrangements are provided by:
CONFORG

Poster:
EuroCG Poster

Sponsors


Gold sponsors:
RSJ
Unicorn

Sponsors:
Znovín

Contributors:
Department of Theoretical Computer Science,
Faculty of Information Technology CTU in Prague