STACS

42nd International Symposium on Theoretical Aspects of Computer Science (STACS 2025)

Jena, March 04-07, 2025

Schedule

Jump to: [Tuesday] [Wednesday] [Thursday] [Friday]

Click to expand pre-conference workshop
Monday, March 03 (pre-conference workshop)
13.30 - 14.30
Heribert Vollmer: The Complexity of Enumerating Satisfying Assignments (invited talk)
14.30 - 15.00
Coffee break
15.00 - 16.20
Contributed talks 1
15.00
Manuel Bodirsky. Reducing Stochastic Games to Semidefinite Programming
15.20
Laura Strieker. Graph Neural Networks and Arithmetic Circuits
15.40
Andrew Ryzhikov. The complexity of computing the period and the exponent of a digraph
16.00
Fabian Egidy. Optimal Proof Systems for Complex Sets are Hard to Find
16.20 - 16.50
Coffee break
16.50 - 17.50
Contributed talks 2
16.50
Pascal Lenzner. Dynamics of Schelling Games
17.10
Santiago Guzmán Pro. Hereditary First-Order Logic and Extensional ESO
17.30
Arne Meier. Rejection in Abstract Argumentation: Harder Than Acceptance?
18.00 - 18.30
Business Meeting of the GI groups
Tuesday, March 04 (pre-conference workshop)
09.15 - 10.15
Sebastian Wild: Quicksort, Timsort, Powersort - Algorithmic ideas, engineering tricks, and trivia behind CPython’s new sorting algorithm (invited talk)
10.15 - 10.45
Coffee break
10.45 - 12.05
Contributed talks 3
10.45
Marlene Gründel. On the Parameterized Complexity of Graph Modification to First-Order Logic Properties
11.05
André Nichterlein. Parameterized Complexity of Segment Routing
11.25
Ilya Chernykh. On the Tightness of the Standard Lower Bound in the Two-Machine Routing Open Shop
11.45
Florian Bruse. Categorizing Ensembles of Real-Valued Functions
12.05 - 13.30
Lunch break
Tuesday, March 04
13.30 - 14.30
Opening
13.40 - 14.30
Albert Atserias: Proof complexity and its relations to SAT solving (tutorial, part 1) Chair: Olaf Beyersdorff
14.30 - 15.00
Coffee break
15.00 - 15.10
Address of the president of Friedrich Schiller University Jena
15.10 - 16.00
Albert Atserias: Proof complexity and its relations to SAT solving (tutorial, part 2) Chair: Olaf Beyersdorff
16.00 - 16.30
Coffee break
16.30 - 17.50
Distributed algorithms and communication Chair: Sebastian Wild
Logic and complexity Chair: Manuel Bodirsky
16.30
Stéphane Devismes, David Ilcinkas, Colette Johnen and Fréderic Mazoit. Being Efficient in Time, Space, and Workload: a Self-stabilizing Unison and its Consequences
Yaroslav Alekseev, Dima Grigoriev and Edward A. Hirsch. Tropical Proof Systems: Between R(CP) and Resolution
16.50
Aleksander Bjoern Grodt Christiansen, Ivor van der Hoog and Eva Rotenberg. Local Density and its Distributed Approximation
Jorge Gallego and Alessio Mansutti. On the Existential Theory of the Reals Enriched with Integer Powers of a Computable Number
17.10
Pierre Fraigniaud, Minh Hang Nguyen and Ami Paz. Agreement Tasks in Fault-Prone Synchronous Networks of Arbitrary Structure
Benjamin Bordais, Daniel Neider and Rajarshi Roy. The Complexity of Learning LTL, CTL and ATL formulas
17.30
Kazumasa Shinagawa and Koji Nuida. Card-Based Protocols Imply PSM Protocols
Ebrahim Ghorbani, Jonah Leander Hoff and Matthias Mnich. Generalized Arrival on Tree-Like Multigraphs
18.30 - 23.00
Reception (Volkshaus)
Wednesday, March 05
09.15 - 10.15
10.15 - 10.45
Coffee break
10.45 - 12.05
Resilience and robustness Chair: Magnus Wahlström
Algebra, logic and computability Chair: Andrei Bulatov
10.45
Felix Hommelsheim, Zhenwei Liu, Nicole Megow and Guochuan Zhang. Protecting the Connectivity of a Graph under Non-uniform Edge Failures
Quentin Aristote. Monotone weak distributive laws over the lifted powerset monad in categories of algebras
11.05
Keerti Choudhary and Rishabh Dhimann. A Deterministic Approach to Shortest Path Restoration in Edge Faulty Graphs
Sergey Goncharov, Dirk Hofmann, Pedro Nora, Lutz Schröder and Paul Wild. Identity-Preserving Lax Extensions and Where to Find Them
11.25
Petr Kolman. A Note on Approximation of Spanning Tree Congestion
Rémy Cerda and Lionel Vaux Auclair. How to play the Accordion: Uniformity and the (non-)conservativity of the linear approximation of the λ-calculus
11.45
Quentin Hillebrand, Vorapong Suppakitpaisarn and Tetsuo Shibuya. Cycle Counting under Local Differential Privacy for Degeneracy-bounded Graphs
Antonin Callard, Léo Paviet Salomon and Pascal Vanier. Computability of extender sets in multidimensional subshifts
12.05 - 13.30
Lunch break
13.30 - 15.10
Parameterized algorithms I Chair: Arne Meier
Automata Chair: Sylvain Schmitz
13.30
Akanksha Agrawal, Daniel Lokshtanov, Fahad Panolan, Saket Saurabh and Shaily Verma. Parameterized Saga of First-Fit and Last-Fit Coloring
Benjamin Hellouin de Menibus and Pacôme Perrotin. Alternating hierarchy of subshifts defined by nondeterministic plane-walking automata
13.50
Tomohiro Koana and Magnus Wahlström. Faster algorithms on linear delta-matroids
Roberto Borelli, Luca Geatti, Marco Montali and Angelo Montanari. On Cascades of Reset Automata
14.10
Matthias Bentert, Fedor Fomin and Petr Golovach. Tight Approximation and Kernelization Bounds for Vertex-Disjoint Shortest Paths
Aliaume Lopez. Commutative N-rational series of polynomial growth
14.30
Ajinkya Gaikwad, Hitendra Kumar, Soumen Maity, Saket Saurabh and Roohani Sharma. MaxMin Separation Problems: FPT Algorithms for st-Separator and Odd Cycle Transversal
Stefan Kiefer and Andrew Ryzhikov. Efficiently computing the minimum rank of a matrix in a monoid of zero-one matrices
14.50
Eduard Eiben, Séhane Bel Houari-Durand and Magnus Wahlström. Polynomial kernel and incompressibility for Prison-Free Edge Deletion and Completion
Lê Thành Dũng Nguyễn and Gabriele Vanoni. Slightly non-linear higher-order tree transducers (online)
15.10 - 15.40
Coffee break
15.40 - 17.20
Parameterized algorithms II Chair: Nils Morawietz
Computational geometry and scheduling Chair: Christian Komusiewicz
15.40
Jakob Greilhuber, Philipp Schepper and Philip Wellnitz. Residue Domination in Bounded-Treewidth Graphs
Haitao Wang and Yiming Zhao. Dynamic Unit-Disk Range Reporting
16.00
Tim A. Hartmann and Dániel Marx. Independence and Domination on Bounded-Treewidth Graphs: Integer, Rational, and Irrational Distances
Anastasiia Tkachenko and Haitao Wang. Dominating Set, Independent Set, Discrete k-Center, Dispersion, and Related Problems for Planar Points in Convex Position
16.20
Radu Curticapean, Simon Döring, Daniel Neuen and Jiaheng Wang. Can You Link Up With Treewidth?
Sariel Har-Peled and Saladi Rahul. Approximating Densest Subgraph in Geometric Intersection Graphs
16.40
Florent Foucaud, Esther Galby, Liana Khazaliya, Shaohua Li, Fionn Mc Inerney, Roohani Sharma and Prafullkumar Tale. Metric Dimension and Geodetic Set Parameterized by Vertex Cover
Leah Epstein and Asaf Levin. Efficient approximation schemes for scheduling on a stochastic number of machines
17.00
Aritra Banik, Fedor Fomin, Petr Golovach, Tanmay Inamdar, Satyabrata Jana and Saket Saurabh. Multivariate Exploration of Metric Dilation
Klaus Heeger and Hendrik Molter. Minimizing the Number of Tardy Jobs with Uniform Processing Times on Parallel Machines
17.30 - 18.30
Business Meeting
Thursday, March 06
09.15 - 10.15
Anupam Das: Algebras for automata: reasoning with regularity (invited talk) Chair: Dietrich Kuske
10.15 - 10.45
Coffee break
10.45 - 12.05
Miscellaneous graph algorithms Chair: Edward Hirsch
Logic Chair: Navid Talebanfard
10.45
Shyan Akmal and Tomohiro Koana. Faster Edge Coloring by Partition Sieving
Jean Christoph Jung and Jędrzej Kołodziejski. Modal Separation of Fixpoint Formulae
11.05
Nastaran Behrooznia and Torsten Mütze. Listing spanning trees of outerplanar graphs by pivot exchanges
Damian Niwiński, Paweł Parys and Michał Skrzypczak. A Dichotomy Theorem for Ordinal Ranks in MSO
11.25
Ursula Hebert-Johnson and Daniel Lokshtanov. Sampling Unlabeled Chordal Graphs in Expected Polynomial Time
Max Bannach and Markus Hecher. Structure-Guided Automated Reasoning
11.45
Boaz Patt-Shamir, Adi Rosén and Seeun William Umboh. Colorful Vertex Recoloring of Bipartite Graphs
Rutger Campbell, Bruno Guillon, Mamadou Moustapha Kanté, Eun Jung Kim and Noleen Köhler. CMSO-transducing tree-like graph decompositions
12.05 - 13.30
Lunch break
13.30 - 15.10
Complexity I Chair: Heribert Vollmer
Online, streaming, and low-space algorithms Chair: Thomas Schwentick
13.30
Alexey Milovanov and Bruno Loff. The hardness of decision tree complexity (online)
Yasushi Kawase and Tomohiro Nakayoshi. Online Matching with Delays and Size-based Costs
13.50
Mohit Jayanti Gurumukhani, Ramamohan Paturi, Michael Saks and Navid Talebanfard. Local Enumeration: The Not-All-Equal Case
Noam Touitou. Nearly-Optimal Algorithm for Non-Clairvoyant Service with Delay
14.10
Andrei Bulatov and Amirhossein Kazeminia. Modular Counting CSP: Reductions and Algorithms
Marcin Bienkowski, Jaroslaw Byrka and Łukasz Jeż. Online Disjoint Set Covers: Randomization is not Necessary
14.30
Yuwei Liu, Yijia Chen, Shuangle Li, Bingkai Lin and Xin Zheng. On Average Baby PIH and Its Applications
Sharareh Alipour, Ermiya Farokhnejad and Tobias Momke. Improved Approximation Algorithms for (1,2)-TSP and Max-TSP Using Path Covers in the Semi-Streaming Model
14.50
Pavel Hrubes and Pushkar Joglekar. On read-k projections of the determinant
Daniel Gibney, Sharma V. Thankachan, Arnab Ganguly and Rahul Shah. Two-Dimensional Longest Common Extension Queries in Compact Space
15.10 - 15.40
Coffee break
15.40 - 17.20
Complexity II Chair: Till Tantau
Exploration and random graphs Chair: Jacobo Toran
15.40
Nathan Claudet and Simon Perdrix. Local equivalence of stabilizer states: a graphical characterisation
Patrick Schnider, Linus Stalder and Simon Weber. Unfairly Splitting Separable Necklaces
16.00
Stacey Jeffery and Galina Pass. Multidimensional Quantum Walks, Recursion, and Quantum Divide & Conquer
Dariusz Dereniowski, Aleksander Łukasiewicz and Przemysław Uznański. Noisy (binary) searching: simple, fast and correct
16.20
Srinivasan Arunachalam and Louis Schatzki. Generalized Inner Product Estimation with Limited Quantum Communication
Martin Hoefer, Conrad Schecker and Kevin Schewior. Designing Exploration Contracts
16.40
Piotr Kawałek and Armin Weiß. Violating Constant Degree Hypothesis Requires Breaking Symmetry
Oleg Verbitsky and Maksim Zhukovskii. Canonical labeling of sparse random graphs
17.00
Nikolai Chukhin, Alexander Kulikov and Ivan Mihajlin. Toward Better Depth Lower Bounds: Strong Composition of XOR and a Random Function
Samuel Baguley, Yannic Maus, Janosch Ruff and George Skretas. Hyperbolic Random Graphs: Clique Number and Degeneracy with Implications for Colouring
19.00 - 23.00
Conference Dinner (Volksbad)
Friday, March 07
09.15 - 10.15
Susanna F. de Rezende: Some Recent Advancements in Monotone Circuit Complexity (invited talk) Chair: Olaf Beyersdorff
10.15 - 10.45
Coffee break
10.45 - 12.15
Graphs with structure Chair: Dominik Scheder
Clustering Chair: Rüdiger Reischuk
10.45
Julia Katheder, Michael Kaufmann, Sergey Pupyrev and Torsten Ueckerdt. Transforming Stacks into Queues: Mixed and Separated Layouts of Graphs (online)
Nick Fischer, Evangelos Kipouridis, Jonas Klausen and Mikkel Thorup. A Faster Algorithm for Constrained Correlation Clustering
11.05
Deborah Haun, Laura Merker and Sergey Pupyrev. Forbidden Patterns in Mixed Linear Layouts
Ameet Gadekar and Tanmay Inamdar. Dimension-Free Parameterized Approximation Schemes for Hybrid Clustering
11.25
Christine Awofeso, Patrick Greaves, Oded Lachish and Felix Reidl. Results on H-freeness testing in graphs of bounded r-admissibility
Matthias Kaul, Kelin Luo, Matthias Mnich and Heiko Röglin. Approximate Minimum Tree Cover in All Symmetric Monotone Norms Simultaneously
11.45
Jungho Ahn, Hugo Jacob, Noleen Köhler, Christophe Paul, Amadeus Reinald and Sebastian Wiederrecht. Twin-width one
Manuel Lafond, Alitzel López Sánchez and Weidong Luo. Cluster Editing on Cographs and Related Classes