Workshops

On Tuesday, May 24, the following workshops will be held:

• Workshop "Mathematical Optimization for Energy Networks"
• Workshop "Hybrid Methods for Nonlinear Combinatorial Optimization Problems"
• Workshop "ISA - Innovative Scheduling and other Applications using CP-AI-OR"
• Workshop "Mathematical Optimization of Railway-Systems"

Energy networks are the backbone of a reliable supply of gas, oil, and power for industrial and private customers. It is required to safely and efficienty distribute the various sources of energy. Companies involved in this business are interested in methods to set up, manage, maintain, and extend such networks in an economic way. New technology advances (such as smart grids) and new (de-)regulation rules for network operators yield new challanges that have not addressed before. Recently, contributions from mathematical optimization techniques are in use to solve such tasks. At the CPAIOR we organise a one day workshop on "Mathematical Optimization for Energy Networks" to present and discuss recent developments in this area.

Organizers:

• Armin Fügenschuh, Zuse Institute Berlin, Germany
• Benjamin Hiller, Zuse Institute Berlin, Germany
• Jesco Humpola, Zuse Institute Berlin, Germany
• Thorsten Koch, Zuse Institute Berlin, Germany

This workshop aims at bringing together scholars and practitioners from the Mixed Integer Nonlinear Programming (MINLP) and the Constraint Programming (CP) community to share their thoughts on the theory and implementation of solvers for MINLP and CP problems. This workshop is motivated by the recent development of new solvers and exciting new results in MINLP and CP.

Organizers:

• Stefano Gualandi, Universita di Pavia, Italy
• Pietro Belotti, Clemson University, USA

In the focus of this workshop are any new innovative applications using CP-AI-OR technology either addressing new application areas, the combination of different modeling and/or solution technologies (hybrid problem models, hybrid solvers, problem decomposition, new modeling concepts and pruning/search algorithms) or interactive systems assisting their users in decision making.

This includes but is not restricted to

• load balancing applications in smart energy systems like producer-consumer-alignment problems (e.g. caused by the variability of renewable energy),
• scheduling in safety critical system, e.g. using multi-core infrastructure, e.g. in automotive, avionics, etc.,
• the integration of (business) process modeling and scheduling in order to support complex management decisions (e.g. scheduling and/or resource allocation, etc.) e.g. in medicine, etc.

The workshop provides the opportunity to present and discuss ongoing research and prototype systems showing the potential of CP-AI-OR concepts, models and algorithms in applications areas which are open for any innovative management solutions. Due to this fact, the topics addressed in this workshop are of great interest for CP-AI-OR.

Organizers:

• Armin Wolf, Fraunhofer-Institut für Rechnerarchitektur und Softwaretechnik, FIRST, Berlin, Germany
• Petra Hofstedt, Brandenburgische Technische Universitä t Cottbus, Germany

The focus of this workshop is on solution techniques for combinatorial optimization problems, which arise in railway systems. The main motivation for this workshop is the observation that railway planning problems can be extremely difficult to solve optimally with existing methods, while doing so could result in huge gains, e.g., in terms of cost reductions or service quality improvements.

Organizers:

• Ralf Borndörfer, Zuse Institute Berlin/TU Darmstadt, Germany
• Holger Flier, ETH Zürich
• Martin Fuchsberger, ETH Zürich, Switzerland
• Thomas Schlechte, Zuse Institute Berlin, Germany