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Dr. Sebastian Orlowskiatesio GmbHSophie-Taeuber-Arp-Weg 27, 12205 Berlin, Germany
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Dr. Sebastian Orlowski
atesio GmbH
Sophie-Taeuber-Arp-Weg 27, 12205 Berlin, Germany
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Tel: +49-30-79745882 Fax: +49-30-79786843 email: orlowski atesio.de
My focus is the application of combinatorial optimization and mixed-integer programming techniques to the cost-minimal design of survivable telecommunication networks. In particular, this includes
- integrated planning of multi-layer telecommunication networks (see my PhD thesis),
- evaluation of different survivability mechanisms in single-layer network design,
- design of optical access networks (fiber to the home/building/curb/...).
Since June 2009, I am working on these topics at atesio Gmbh.
Projects
- FTTx-Plan in cooperation with ZIB and various industrial partners
- Integrated Planning of Multi-Layer Networks (B3) within the DFG Research Center Matheon
(Mathematics for key technologies: Modelling, simulation, and optimization of real-world processes)- Multi-Layer Transport Networks in cooperation with Nokia Siemens Networks
- COST 293 (GRAAL): EU project Graphs and Algorithms in Communication Networks
- SNDlib: Survivable Network Design Library, a benchmark data collection for network dimensioning
Publications
Selected talks
- 2009/04/29, On the complexity of column generation in survivable network design with path-based survivability mechanisms, INOC 2009, Pisa, Italy
- 2008/09/24, On the complexity of column generation in survivable network design, Cost 293 workshop in connection with DISC 2008, Arcachon, France
- 2008/06/10, Branch-and-cut techniques for solving realistic two-layer network design problems, Institute of Telecommunications, Warsaw University of Technology, Poland
- 2008/03/17, Branch-and-cut techniques for solving realistic two-layer network design problems, CO 2008, Warwick, UK
- 2007/12/12, Multi-layer Transport Network Optimization, ZIB-HHI workshop, ZIB
- 2007/06/04, Single-layer Cuts for Multi-layer Networks, Cost 293 meeting, Castiglioncello, Italy
- 2007/04/24, SNDlib 1.0--Survivable Network Design Library, INOC 2007, Spa, Belgium
- 2007/04/24, Two-layer network design using branch-and-cut featuring MIP-based Heuristics, INOC 2007, Spa, Belgium
- 2007/01/23, Mixed Integer Programming for Multi-layer Transport Networks, Siemens, Munich
- 2006/05/10, Branch, Cut and Price in Two-Layer Network Design, COFIN-Matheon-Workshop "Advances in Telecommunication Network Optimization", Villa Vigoni, Menaggio, Italy
- 2006/03/16, Approaches to Multi-layer Network Planning at ZIB, Politecnico Ho-Chi-Minh-City, Vietnam
- 2006/03/07, An Integer Programming Approach to 2-layer Telecommunication Network Design, HPSC 2006, Hanoi, Vietnam
- 2005/10/18, A Computational Study for Demand-wise Shared Protection, DRCN 2005, Ischia, Italy
- 2005/05/23, Modelling and Solving Multi-layer Network Design Problems, DEI, Politecnico di Milano, Italy
- 2004/07/27, An Integrated Planning Model for Multi-layer Network Design, Optimization 2004 conference, Lisbon, Portugal
- 2004/03/08, The Effect of Hop Limits on Optimal Cost in Network Design, 7th INFORMS Telecommunication Conference, Boca Raton, FL, USA
- 2004/03/08, Comparing Restoration Concepts: What's the Impact on Optimal Network Cost?, 7th INFORMS Telecommunication Conference, Boca Raton, FL, USA
March 12, 1977 Born in Hamburg, Germany 1983–1996 Education in public schools, Abitur at Georg-Herwegh-Oberschule in Berlin-Hermsdorf 1996–2003 Mathematical studies (Wirtschaftsmathematik) at the Department of Mathematics of TU Berlin 1998 Vordiplom of Mathematics at TU Berlin 1998–1999 Mathematical studies with Licence at Université de Nantes (France) 10/1999–9/2001 Student teaching assistant at the Department of Mathematics of TU Berlin 10/2001–5/2003 Student research assistant at ZIB 4/2003 Diplom of Mathematics (Dipl. Math. oec.) at TU Berlin (diploma thesis) 6/2003–5/2009 PhD student at ZIB 5/2009 PhD with summa cum laude at TU Berlin since 6/2009 Developer and consultant at atesio Gmbh
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Last change: August 1, 2009