Combinatorial Optimization and Logistics
The Combinatorial Optimization and Logistics (CSLog) group at the University of Bremen focuses on the analysis of discrete algorithmic problems that are computationally difficult. We analyze the structure of such problems and design efficient algorithms with provable performance guarantees for solving them. We are also interested in combinatorial optimization problems where the input is revealed only incrementally or where there is uncertainty in the parameters, and we develop online, stochastic or robust solution methods.
Combinatorial optimization is related to theoretical computer science, discrete mathematics, operations research, algorithm theory and computational complexity theory and has important applications in several fields. In our group we develop theoretic results and apply them to complex real-world environments. Typical applications include scheduling, production planning, logistics, network design, communication and routing in networks, and health care.
Contact
Combinatorial Optimization and Logistics
Faculty 3 - Mathematics and Computer Science
Prof. Dr. Nicole Megow
Bibliothekstr. 5
28359 Bremen
Secretary office
Martina Mörz
Telefon: +49 (0) 421 218 63580
News
Sep 30, 2020: Bertrand Simon leaves our group to join as a CNRS researcher the IN2P3 Computing Center, Villeurbanne/Lyon. Congratulations!
Sep 1, 2020 Our paper "Minimum Spanning Tree under Explorable Uncertainty in Theory and Experiments" has been accepted for publication at ACM Journal of Experimental Algorithmics
Jun 29, 2020 Our paper "Computing a Minimum-Cost k-hop Steiner Tree in Tree-Like Metrics" has been accepted at MFCS 2020
Jun 18, 2020 Our paper "Optimally Handling Commitment Issues in Online Throughput Maximization" has been accepted at ESA 2020
Jun 11, 2020 Our paper "Online Minimum Cost Matching with Recourse on the Line" has been accepted at APPROX 2020
Jul 1, 2020 Our paper "An Adversarial Model for Scheduling with Testing" has been accepted for publication at Algorithmica
Jun 1, 2020 Our paper "Online Metric Algorithms with Untrusted Predictions" has been accepted at ICML 2020
March 23, 2020: Bremen Hamburg Colloquium on Algorithms, Combinatorics and OptimizationCancelled
Feb 16-21, 2020: Dagstuhl Seminar: Scheduling, organized by Nicole Megow, David Shmoys and Ola Svensson
Feb 10-13, 2020: Andreas Wiese from Universidad de Chile is visiting us
Feb 10, 2020 Our paper "Scheduling on Hybrid Platforms: Improved Approximability Window" has been accepted at LATIN Symposium 2020
Feb 03, 2020 Our paper "A general framework for handling commitment in online throughput maximization" has been published in issue 183 of Mathematical Programming
Feb 01, 2020 Our paper "Scheduling on Two Types of Resources: a Survey" has been accepted for publication at ACM Computing Surveys
Jan 29-31, 2020: Giorgio Lucarelli from Grenoble
Jan 19, 2020 Our paper "On the Complexity of Conditional DAG Scheduling in Multiprocessor Systems" has been accepted at IPDPS 2020
Dec 10, 2019: Volker Kaibel from OVGU Magdeburg speaks at the Mathematical Colloquium