Alexander Helber, M.Sc.
Office:
B260
Fon:
Email:
Research interests:
- Integer and Combinatorial Optimization
- Optimization in Practice
- Network Design and Flow Problems
- Exact Algorithms: Decomposition Methods and Dynamic Discretization Discovery
Projects:
Courses:
- Summer Semester 2022 and 2023: Practical Optimization with Modeling Languages
- Winter Semester 2024: Operations Research 1
- Summer Semester 2025: Operations Research Praktikum (project-based course)
- Winter Semester 2025: Operations Research 1 and a bit of Operations Research Praktikum
Other profiles on the web:
Publications
Talks
Forschungsseminar Obergurgl,
Austria,
March, 2026.
title:
Logic-Based Benders for Train Re-Scheduling with Moving Block Control
SBB OR Symposium,
Bern,
Switzerland,
Sep 11, 2025.
title:
Arc-based Dynamic Discretization Discovery for Service Network Design
OR2025,
Bielefeld,
Germany,
Sep 4, 2025.
title:
Arc-based Dynamic Discretization Discovery for Service Network Design
Gerhard Woeginger Research Colloquium,
Aachen,
Germany,
July 3, 2025.
title:
Arc-based Dynamic Discretization Discovery for Service Network Design
OR2024,
München,
Germany,
Sep 9, 2024.
title:
Branch-Price-and-Cut for a Hub Network Design Problem with Line Hauls
seminar:
Branch-and-Price for a Service Network Design and Hub Location Problem
seminar:
Machine learning-supported decomposition algorithms for a large scale hub location problem
title:
A hub location problem with service network design considerations
title:
An integrated facility location and service network design problem