Gerald Gamrath
Zuse Institute Berlin (ZIB) Takustraße 7 14195 Berlin (Germany)
Room: 3307 Phone: +49 30 84185-181 Fax: +49 30 84185-269 Email: gamrathzib.de

Projects and current work

• I am one of the developers of the MIP and CIP solving framework SCIP. It is one of the fastest non-commercial MIP solvers and provides broad support for Branch-and-Price.
• My main project is Advanced Solver Technology for Supply Chain Management, a cooperation with SAP. We are working on real-world supply chain problems, trying to improve the model formulation as well as to develop new general and problem specific methods to handle these problems more efficiently within SCIP and SoPlex.
• I am one of the creators of MIPLIB 2010 and still one of its maintainers.
• For my diploma thesis Generic Branch-Cut-and-Price, I developed the generic Branch-Cut-and-Price Solver GCG. I'm still doing some research in this direction in cooperation with the department of Prof. Marco Lübbecke at RWTH Aachen. I am specially interested in transferring "standard" MIP solving methods to the generic approach and in a parallization of the pricing process.

Short Academic CV

10/2004 - 03/2010	Technische Universität Berlin: Studies of Applied Mathematics (Wirtschaftsmathematik) with minors in Economics and Computer Science
03/2010	Diploma in Applied Mathematics (Wirtschaftsmathematik) with minors in Economics and Computer Science with distinction (grade 1.0), supervised by Prof. Dr. Marco Lübbecke
06/2006 - 09/2007	Technische Universität Berlin: Student assistant, Combinatorial Optimization & Graph Algorithms group
10/2007 - 06/2010	Zuse Institute Berlin (ZIB): Student assistant, Department Optimization
since 07/2010	Zuse Institute Berlin (ZIB): Research assistant, Department Optimization
since 10/2011	Member of the Berlin Mathematical School (BMS)

Publications

• Solving mixed integer linear and nonlinear problems using the SCIP Optimization Suite
  Timo Berthold, Gerald Gamrath, Ambros M. Gleixner, Stefan Heinz, Thorsten Koch, and Yuji Shinano
  ZIB Report 12-27

• MIPLIB 2010 – Mixed Integer Programming Library version 5
  Thorsten Koch, Tobias Achterberg, Erling Andersen, Oliver Bastert, Timo Berthold, Robert E. Bixby, Emilie Danna, Gerald Gamrath, Ambros M. Gleixner, Stefan Heinz, Andrea Lodi, Hans Mittelmann, Ted Ralphs, Domenico Salvagnin, Daniel E. Steffy, and Kati Wolter
  In Mathematical Programming Computation, Volume 3, Number 2, pp. 103-163, 2011, Springer.
  DOI: 10.1007/s12532-011-0025-9
  

• Experiments with a Generic Dantzig-Wolfe Decomposition for Integer Programs
  Gerald Gamrath and Marco E. Lübbecke
  In P.Festa (Ed.), Symposium on Experimental Algorithms (SEA 2010), LNCS, 6049, pp. 239-252, 2010, Springer, Berlin.
  DOI: 10.1007/978-3-642-13193-6_21
  

• Generic Branch-Cut-and-Price
  Gerald Gamrath
  Diploma Thesis, Technische Universität Berlin, 2010

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