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Christian Raack - Guest

Zuse Institute Berlin (ZIB)
Discrete Mathematics
Department Optimization

Takustr. 7
D-14195 Berlin-Dahlem
Germany

Email:     raackzib.de
Phone:   +49 30 84185-369
Fax:       +49 30 84185-269
Room:    3102

Publications

2012

Andreas Betker, Dirk Kosiankowski, Christoph Lange, Frank Pfeuffer, Christian Raack, Axel Werner Energy efficiency in extensive multilayer core and regional networks with protection ZIB-Report 12-45 PDF


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2011

Sanjeeb Dash, Oktay Günlük, Christian Raack A note on the MIR closure and basic relaxations of polyhedra Optimization Research Letters, Vol. 39, No. 3, pp. 198-199, 2011
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Michael Poss, Christian Raack Affine recourse for the robust network design problem: between static and dynamic routing ZIB-Report 11-03 PDF


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Filip Idzikowski, Sebastian Orlowski, Christian Raack, Hagen Woesner, Adam Wolisz Dynamic routing at different layers in IP-over-WDM networks -- Maximizing energy savings Optical Switching and Networking, Special Issue on Green Communications, 2011 PDF (Preprint)



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Christian Raack, Arie M.C.A. Koster, Sebastian Orlowski, Roland Wessäly On cut-based inequalities for capacitated network design polyhedra Networks, Vol. 57, No. 2, pp. 141-156, 2011
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Ulrich Menne, Christian Raack, Roland Wessäly, Daniel Kharitonov Optimal Degree of Optical Circuit Switching in IP-over-WDM Networks ZIB-Report 11-50 PDF


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Arie M.C.A. Koster, Manuel Kutschka, Christian Raack Robust Network Design: Formulations, Valid Inequalities, and Computations ZIB-Report 11-34 PDF


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2010

Filip Idzikowski, Sebastian Orlowski, Christian Raack, Hagen Woesner, Adam Wolisz Saving energy in IP-over-WDM networks by switching off line cards in low-demand scenarios Proceedings of the 14th conference on Optical network design and modeling, ONDM'10, pp. 42-47, IEEE Press: Piscataway, NJ, USA, 2010
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Tobias Achterberg, Christian Raack The MCF-Separator -- Detecting and Exploiting Multi-Commodity Flows in MIPs Mathematical Programming C, No. 2, pp. 125-165, 2010
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Arie M.C.A. Koster, Manuel Kutschka, Christian Raack Towards Robust Network Design using Integer Linear Programming Techniques Proceedings of the NGI 2010, Paris, France, June, Next Generation Internet: Paris, France, 2010
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2009

A.M.C.A. Koster, C. Raack A packing integer program arising in two-layer network design Proceedings of the INOC 2009, Pisa, Italy, April, International Network Optimization Conference: Pisa, Italy, 2009
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A.M.C.A. Koster, S. Orlowski, C. Raack, G. Baier, T. Engel, P. Belotti Branch-and-cut techniques for solving realistic two-layer network design problems Graphs and Algorithms in Communication Networks, pp. 95-118, Springer Berlin Heidelberg, 2009
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Tobias Achterberg, Christian Raack The MCF-Separator -- Detecting and Exploiting Multi-Commodity Flow Structures in MIPs ZIB-Report 09-38 PDF



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2008

Andreas Bley, Ullrich Menne, Roman Klaehne, Christian Raack, Roland Wessaely Multi-layer network design -- A model-based optimization approach Proceedings of the PGTS 2008, Berlin, Germany, pp. 107-116, Polish-German Teletraffic Symposium: Berlin, Germany, 2008
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Arie M.C.A. Koster, Sebastian Orlowski, Christian Raack, Georg Baier, Thomas Engel Single-layer Cuts for Multi-Layer Network Design Problems Telecommunications Modeling Policy and Technology, also ZIB Report ZR-07-21, pp. 1-23, Springer: College Park, MD, U.S.A., 2008 PDF (Preprint)


DOI
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2007

Christian Raack, Arie M.C.A. Koster, Sebastian Orlowski, Roland Wessaely Capacitated network design using general flow-cutset inequalities Proceedings of the INOC 2007, Spa, Belgium, also ZIB Report ZR-07-14, International Network Optimization Conference: Spa, Belgium, 2007 PDF (Preprint)


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Christian Raack, Arie M.C.A. Koster, Roland Wessäly On the strength of cut-based inequalities for capacitated network design polyhedra ZIB-Report 07-08 PDF

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Sebastian Orlowski, Arie M.C.A. Koster, Christian Raack, Roland Wessaely Two-layer Network Design by Branch-and-Cut featuring MIP-based Heuristics Proceedings of the INOC 2007, Spa, Belgium, also ZIB Report ZR-06-47, International Network Optimization Conference: Spa, Belgium, 2007 PDF (Preprint)
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2005

Christian Raack Employing Mixed-Integer Rounding in Telecommunication Network Design Diploma thesis, 2005 PDF


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