Prof. Dr. Marco Lübbecke Lehrstuhlinhaber
Büro:
B262
Telefon:
Email:
Sprechstunde:
Mittwochs, 11.00-12.00
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Andere Profile im Web:
Publikationen
A Computational Investigation on the Strength of Dantzig-Wolfe Reformulations. In D'Angelo, G., Experimental Algorithms - SEA 2018,
pages 11:1—11:12, May 2018. Schloss Dagstuhl-Leibniz-Zentrum für Informatik. Leibniz International Proceedings in Informatics (LIPIcs), vol. 103 (instances available at https://www.or.rwth-aachen.de/files/research/publications/alldecomps_instances.zip).
Dynamische Vergabe von Patiententerminen in Krankenhäusern. In Lübbecke, M., Weiler, A. and Werners, B., Zukunftsperspektiven des Operations Research: Erfolgreicher Einsatz und Potenziale,
pages 83—96, April 2014. Springer.
Column Generation. In Lübbecke, M., Wiley Encyclopedia of Operations Research and Management Science.
John Wiley & Sons, Chichester, January 2011.
Preface. In Erlebach, T. and Lübbecke, M., Proceedings of the 10th Workshop on Algorithmic Approaches for Transportation Modelling, Optimization, and Systems,
pages i—ix, September 2010. Schloss Dagstuhl-Leibniz-Zentrum für Informatik.
A Constraint Integer Programming Approach for Resource-Constrained Project Scheduling. In Lodi, A., Milano, M. and Toth, P., Integration of AI and OR Techniques in Constraint Programming for Combinatorial Optimization Problems,
pages 313—317, June 2010. Springer. Lecture Notes in Computer Science, vol 6140.
Vorträge
Vortrag:
Kantorovich, Koopmans (oder doch Dantzig?): Besser geht es nicht!
Vortrag:
Facilitating Branch-and-Price Development and Experiments
Seminar Demokratie und Wissenschaft · Konrad-Adenauer-Stiftung,
Aachen,
Deutschland,
Apr 23, 2022.
Keynote:
Optimale Aufteilung von Wahlkreisen
Women in OR & Analytics Event (online),
Jan 19, 2022.
Keynote:
Science Communication for Operational Research
Gurobi Industry Days,
Köln (online),
Deutschland,
Nov 9, 2021.
Keynote:
Power Grid Optimization
RWTH WiWi Network · Research Talk,
Aachen (online),
Deutschland,
Sep 22, 2021.
Eingeladen:
Die Qual der Wahl: wieso wir in Entscheidungssituationen mehr Fantasie brauchen
Vortrag:
An Image-based Approach to Detecting Structural Similarity Among Mixed Integer Programs
Keynote:
Political Districting in Germany
Vortrag:
Column Generation, Dantzig-Wolfe, Branch-Price-and-Cut
Projekt Leonardo, RWTH,
Aachen (online),
Deutschland,
Jul 2, 2020.
Eingeladen:
Optimierung oder Evolution?
Seminar:
(Automatic) Branch-Price-and-Cut
Keynote:
Was ist, was kann mathematische Optimierung?
Seminar:
Diskrete Optimierung: Wer die Wahl hat, hat die Qual
NGB/LNMB Seminar "Back to school, learn about the latest developments in Operations Research",
Lunteren,
Niederlande,
January 16, 2019.
Plenary:
(How) does Machine Learning impact Operations Research?
Eingeladen:
A Polyhedral Characterization of Odd Pairs
FORA Symposium,
Aachen,
Deutschland,
December 18, 2018.
Vortrag:
Machine Learning meets Operations Research
SPOC18 "Machine Learning, Networks and Combinatorial Optimization",
Paris,
Frankreich,
December 14, 2018.
Seminar:
Learning when to decompose
Eingeladen:
ML + AI + Opt = ?
Eingeladen:
Lehrveranstaltungsplanung an der RWTH Aachen: Das carpe diem! Projekt
Vortrag:
Generic Branch-Price-and-Cut: GCG 3.0
Eingeladen:
Generic Branch-Price-and-Cut: GCG 3.0
Eingeladen:
Anything you can do, I can do better
INFORMS Conference on Business Analytics & Operations Research,
Baltimore,
Vereinigte Staaten,
April 16, 2018.
Vortrag:
Prescriptive Analytics for Political Districting
Eingeladen:
Learning when to use a decomposition
Seminar:
Recent advances in the branch-price-and-cut solver GCG
Semiplenary:
Optimization meets Machine Learning
Eingeladen:
On the Strength of Dantzig-Wolfe Reformulations
Eingeladen:
Industrie 5.0: Kommt die mathematische Revolution?
Plenary:
Branch-and-Price
Teilnahme
Plenary:
GCG: A Generic Branch-Price-and-Cut Solver
11th International Conference on the Practice and Theory of Automated Timetabling,
Udine,
Italien,
August 23-26, 2016.
Plenary:
University Course Timetabling: from three-, to two-, to one-indexed formulations: what's next?
Eingeladen:
Mathematik Inside - Was bedeutet eigentlich Industrie 4.0?
Vortrag:
Optimization goes data science goes optimization
Eingeladen:
Branching and Cutting Planes in Branch-and-Price
Eingeladen:
Detecting Structure in Mathematical Programs
Seminar:
GCG: a generic branch-price-and-cut solver
Seminar:
Structure in Integer Programming Models
Teilnahme
Eingeladen:
Column Generation (1.5 days of lectures)
Vortrag:
A Contraction-Expansion Algorithm for the Capacitated Minimum Cost Flow Problem
TRISTAN VIII: Triennial Symposium on Transporation Analysis,
San Pedro de Atacama,
Chile,
June 9-14, 2013.
Vortrag:
GCG: A Generic Branch-Price-and-Cut Solver
Danish Operations Research Society: Applications of Optimization - Best Practice and Challenges,
Copenhagen,
Dänemark,
May 29, 2013.
Eingeladen:
Optimizing the 2013/2014 RWTH Aachen University Timetable
Seminar:
Column Generation and Branch-and-Price
Teilnahme
Edinburgh Research Group in Optimization,
University of Edinburgh,
Vereinigtes Königreich,
February 13, 2013.
Seminar:
GCG: a generic branch-price-and-cut solver
SICS konferens om industriell effektivitet,
The Swedish Intitute of Computer Science, Stockholm,
Schweden,
February 11, 2013.
Eingeladen:
Industrial optimization - Lessons learned from optimization in practice
Teilnahme
Seminar:
Column generation and branch-and-price: why and how?
3. Brazilian-German Frontiers of Science and Technology Symposium (BRAGFOST),
Brasilia,
Brasilien,
November 8-11, 2012.
Eingeladen:
Solving huge integer programs to optimality
Plenary:
Column generation
Vortrag:
A generic branch-price-and-cut solver
12th Conference of the IFIP Working Group 7.6 on Advanced Analytics,
Aachen,
Deutschland,
August 29-31, 2012.
Vortrag:
Solving integer programs by branch-and-price (automatically, since three weeks)
International Symposium on Mathematical Programming (ISMP) 2012,
Berlin,
Deutschland,
August 19-24, 2012.
Vortrag:
A generic branch-price-and-cut solver
Annual Meeting of SPP Algorithm Engineering 2012,
Frankfurt,
Deutschland,
July 2-4, 2012.
Teilnahme
Eingeladen:
Generic branch-price-and-cut: a status report
11th International Symposium on Experimental Algorithms (SEA 2012),
Bordeaux,
Frankreich,
June 7-9, 2012.
Plenary:
Automatic Decomposition and Branch-and-Price: A Status Report
Mathematisches Kolloquium,
Fachgruppe Mathematik, RWTH,
Deutschland,
November 29, 2011.
Seminar:
Strukturen in ganzzahligen Programmen
International Conference on Operations Research,
Zurich,
Schweiz,
August 30-September 2, 2011.
Vortrag:
Improved column generation for highly degenerate master problems
Mixed Integer Programming Workshop MIP2011,
U Waterloo,
Kanada,
June 20-23, 2011.
Eingeladen:
Towards automatic Dantzig-Wolfe decomposition
15th Conference on Integer Programming and Combinatorial Optimization (IPCO),
Armonk, NY,
Vereinigte Staaten,
June 15-17, 2011.
Teilnahme
SIAM conference on optimization
SIAM Conference on Optimization,
Darmstadt,
Deutschland,
May 16-19, 2011.
Teilnahme
Kolloquium "Optimierung und Operations Research",
TU Dortmund,
Deutschland,
May 9, 2011.
Seminar:
Automatic decomposition of integer programs?
Annual Meeting of SPP Algorithm Engineering 2011,
Berlin,
Deutschland,
May 2-4, 2011.
Teilnahme
INFORMS conference on business analytics and operations research,
Chicago,
Vereinigte Staaten,
April 10-12, 2011.
Vortrag:
Operations research enlarges the world's busiest artificial waterway
Symposium of the GOR working group "real world optimization",
Bad Honnef,
Deutschland,
April 7-8, 2011.
Eingeladen:
Would the world be different without branch-and-price?
Københavns Universitet, DIKU,
København,
Dänemark,
March 28, 2011.
Seminar:
Dantzig-Wolfe reformulations of general MIPs
Operations Research Seminar,
Maastricht University, Department of Quantitative Economics,
Belgien,
February 22, 2011.
Seminar:
Tiny steps towards automated Dantzig-Wolfe reformulation
15th Combinatorial Optimization Workshop,
Aussois,
Frankreich,
January 10-14, 2011.
Eingeladen:
Partial convexification of general MIPs
DFG SPP Workshop on Algorithm Engineering in Optimization,
Cologne,
Deutschland,
December 3, 2010.
Teilnahme
Operations Research (OR),
Munich,
Deutschland,
September 1-3, 2010.
Vortrag:
Nested Column Generation for a Ship Routing and Scheduling Problem with Split Pickup and Split Delivery
ALGO,
Liverpool,
Vereinigtes Königreich,
September 6-10, 2010.
Teilnahme
Seventh Triennial Symposium on Transportation Analysis (TRISTAN 7),
Tromsø,
Norwegen,
June 20-25, 2010.
Vortrag:
Nested Column Generation for a Ship Routing and Scheduling Problem with Split Pickup and Split Delivery
Annual Meeting of SPP Algorithm Engineering 2010,
Halle,
Deutschland,
June 16-18, 2010.
Teilnahme
9th International Symposium on Experimental Algorithms (SEA 2010),
Ischia Island (Napoli),
Italien,
May 20-22, 2010.
Teilnahme
MathInside - Mathematik ist überall,
Urania, Berlin,
Deutschland,
March 23, 2010.
Seminar:
Wir haben den Kanal voll - Diskrete Optimierung hilft dem Schiffsverkehr im Nord-Ostsee-Kanal
DMV Jahrestagung,
Munich,
Deutschland,
March 8-12, 2010.
Vortrag:
Integer programs for university course timetabling
14th Combinatorial Optimization Workshop,
Aussois,
Frankreich,
January 3-9, 2010.
Teilnahme
Symposium of the GOR working group "real world optimization",
Bad Honnef,
Deutschland,
November 19-20, 2009.
Eingeladen:
Branch-and-price (in public transportation problems)
20th International Symposium on Mathematical Programming,
Chicago,
Vereinigte Staaten,
August 23-28, 2009.
Vortrag:
Ship Traffic Optimization for the World's Busiest Artificial Waterway
European Conference on Operational Research, EURO XXIII,
Bonn,
Deutschland,
July 5-8, 2009.
Eingeladen:
Sequencing and Scheduling in Coil Coating with Shuttles
Models and Algorithms for Optimization in Logistics,
Dagstuhl,
Deutschland,
June 21-26, 2009.
Teilnahme
DFG SPP Workshop Algorithm Engineering for Integer Programming,
Kiel,
Deutschland,
May 7-8, 2009.
Vortrag:
Generische Dekompositionsalgorithmen für ganzzahlige Programme
13th Combinatorial Optimization Workshop,
Aussois,
Frankreich,
January 11-17, 2009.
Eingeladen:
Sorting with complete networks of stacks
International Symposium on Algorithms and Computation (ISAAC),
Gold Coast,
Australien,
December 15-17, 2008.
Teilnahme
European Symposium on Algorithms (ESA),
Karlsruhe,
Deutschland,
September 15-17, 2008.
Teilnahme
Operations Research (OR),
Augsburg,
Deutschland,
September 2-5, 2008.
Vortrag:
Optimal University Course Timetabling
Oberseminar Effizienz dezentraler Strukturen, Lehrstuhl für Wirtschaftsmathematik, Universität Bayreuth,
Bayreuth,
Deutschland,
July 7, 2008.
Seminar:
Ein ganzzahliges Programm für das University Course Timetabling Problem
Column Generation 2008,
Aussois,
Frankreich,
June 17-20, 2008.
Teilnahme
Workshop on Experimental Algorithms (WEA),
Provincetown, MA,
Vereinigte Staaten,
May 30 - June 1, 2008.
Vortrag:
Optimal university course timetables and the partial transversal polytope
Vortragsreihe Operations Research,
Universität Karlsruhe (TH),
Deutschland,
May 16, 2008.
Eingeladen:
Schwierige ganzzahlige Programme aus Produktion und Logistik
Mathematisches Kolloquium, Technische Universität Dortmund,
Dortmund,
Deutschland,
May 6, 2008.
Eingeladen:
Ganzzahlige Programme in diskreter Optimierung und industriellen Anwendungen
Mathematisches Kolloquium, Technische Universität Clausthal,
Clausthal,
Deutschland,
February 22, 2008.
Eingeladen:
Ganzzahlige Programme in diskreter Optimierung und industriellen Anwendungen
5th Workshop on Approximation and Online Algorithms (WAOA),
Eilat,
Israel,
October 11-12, 2007.
Teilnahme
15th Annual European Symposium on Algorithms (ESA),
Eilat,
Israel,
October 8-10, 2007.
Teilnahme
Operations Research 2007,
Saarbrücken,
Deutschland,
September 4-7, 2007.
Vortrag:
Conflict-free Vehicle Routing
Festkolloquium 60th anniversary of Uwe Zimmermann,
TU Braunschweig,
Deutschland,
April 27, 2007.
Vortrag:
Rangieren und Stapeln: Praktische Lösungen für schwere Probleme
Colloquium of the Research Training Group "Methods for Discrete Structures",
FU Berlin,
Deutschland,
January 29, 2007.
Seminar:
Computational Mixed Integer Programming
Kolloquium "Optimierung und Operations Research",
Universität Dortmund,
Deutschland,
January 25, 2007.
Eingeladen:
Intelligentes Stapeln: Transportoptimierung in einem Brammenlager
11th Combinatorial Optimization Workshop,
Aussois,
Frankreich,
January 7-12, 2007.
Eingeladen:
Optimizing the Cargo Express Service of Swiss Federal Railways
Symposium Metallindustrie und Mathematik,
Bad Honnef,
Deutschland,
November 2-3, 2006.
Teilnahme
ARRIVAL/Matheon Fall School 2006 on Timetabling and Line Planning,
Dabendorf near Berlin,
Deutschland,
September 26-29, 2006.
Eingeladen:
IP Techniques for Large Networks: Column Generation
Operations Research 2006,
Karlsruhe,
Deutschland,
September 6-8, 2006.
Teilnahme
GERAD Summer school on column generation,
Montréal,
Kanada,
May 15-19, 2006.
Eingeladen:
Column Generation: Basic Theory (6 hour lecture)
ARRIVAL Kick-off meeting,
Patras,
Griechenland,
March 30-31, 2006.
Teilnahme
Seminar, Centre for Traffic and Transport, Technical University of Denmark,
Copenhagen,
Dänemark,
March 24, 2006.
Eingeladen:
Towards Industrial Railroad Optimization: Switching, Routing, and Scheduling
High Performance Scientific Computing,
Hanoi,
Vietnam,
March 6-10, 2006.
Teilnahme
10th Combinatorial Optimization Workshop,
Aussois,
Frankreich,
January 8-13, 2006.
Eingeladen:
Combinatorial Optimization,
Oberwolfach,
Deutschland,
November 6-12, 2005.
Eingeladen:
Towards Industrial Railroad Optimization: Switching, Routing, and Scheduling
IMA "Hot Topics" Workshop: Mixed-Integer Programming,
Minneapolis,
Vereinigte Staaten,
July 25-29, 2005.
Teilnahme
XI. IPCO,
Berlin,
Deutschland,
June 8-10, 2005.
Teilnahme
4th International Workshop on Efficient and Experimental Algorithms (WEA 05),
Santorini Island,
Griechenland,
May 10-13, 2005.
Teilnahme
9th Combinatorial Optimization Workshop,
Aussois,
Frankreich,
March 13-19, 2005.
Eingeladen:
Algorithms for Optimization with Incomplete Information,
Dagstuhl,
Deutschland,
January 16-21, 2005.
Eingeladen:
Oberseminar über Diskrete Optimierung, Universität Dortmund,
Dortmund,
Deutschland,
November 18, 2004.
Seminar:
Rectangle covers revisited computationally
Kolloquium "Optimierung und Operations Research",
Universität Dortmund,
Deutschland,
November 17, 2004.
Seminar:
Einschränken der Ladebedingungen beim Pickup and Delivery Problem: Gut für Theorie und Praxis
Operations Research 2004,
Tilburg,
Niederlande,
September 1-3, 2004.
Vortrag:
Compressing wavelet-transformed images via rectangle covers
Berliner Algorithmen Tag 2004,
TU Berlin,
Deutschland,
July 12, 2004.
Teilnahme
Colloquium within the European Graduate Program "Combinatorics, Geometry and Computation",
FU Berlin,
Deutschland,
April 19, 2004.
Seminar:
Covering polygons by rectangles
SIGOPT, International Conference on Optimization,
Wittenberg,
Deutschland,
February 15-18, 2004.
Vortrag:
Rectangle covers revisited computationally
15th ACM-SIAM Symposium on Discrete Algorithms (SODA04),
New Orleans, LA,
Vereinigte Staaten,
January 11-13, 2004.
Vortrag:
Minimizing the stabbing number of matchings, trees, and triangulations
8th Combinatorial Optimization Workshop,
Aussois,
Frankreich,
January 4-9, 2004.
Eingeladen:
Rectangle covers revisited computationally
Netzwerktag, DFG-Forschungszentrum Mathematik für Schlüsseltechnologien,
TU Berlin,
Deutschland,
December 15, 2003.
Teilnahme
GOR Workshop "Optimierung im Öffentlichen Nahverkehr",
ZIB, Berlin,
Deutschland,
November 13-14, 2003.
Eingeladen:
Optimales Rangieren
18th International Symposium on Mathematical Programming,
Copenhagen,
Dänemark,
August 18-22, 2003.
Vortrag:
On the stabbing number of matchings, trees, and triangulations
BMBF-Workshop Verkehr, Transport, Logistik, Energiewirtschaft,
Lahmeyer International, Bad Vilbel,
Deutschland,
June 26-27, 2003.
Vortrag:
Optimales Wagenmanagement bei Werks- und Industriebahnen
ROUTE 2003, International Workshop on Vehicle Routing,
Skodsborg,
Dänemark,
June 22-25, 2003.
Eingeladen:
On Compact Formulations for Integer Programs Solved by Column Generation
19th European Workshop of Computational Geometry,
Bonn,
Deutschland,
March 24-26, 2003.
Teilnahme
7th Combinatorial Optimization Workshop,
Aussois,
Frankreich,
March 9-15, 2003.
Eingeladen:
On the stabbing number of matchings, trees, and triangulations
Combinatorial Optimization,
Oberwolfach,
Deutschland,
November 24-30, 2002.
Eingeladen:
Minimum Turn Cycle Covers in Grid Graphs
3rd Research Seminar on Railway Optimization Problems,
Oegstgeest,
Niederlande,
October 1-4, 2002.
Vortrag:
Rail Car Allocation Problems
OR 2002, International Conference on Operations Research,
Klagenfurt,
Österreich,
September 2-5, 2002.
Vortrag:
Minimum Turn Cycle Covers in Grid Graphs
Tag der Mathematik und Informatik,
Braunschweig,
Deutschland,
September 25, 2002.
Vortrag:
Workshop: Das Geheimnis des kürzesten Weges
OR2002, International Conference on Operations Research,
Klagenfurt,
Österreich,
September 2-5, 2002.
Vortrag:
Optimal Rail Car Allocation
Forum "Mathematik in der BASF",
Ludwigshafen,
Deutschland,
June 27, 2002.
Teilnahme
Algorithms Seminar, School of Computer Science, McGill University,
Montréal,
Kanada,
June 3, 2002.
Seminar:
Minimum Turn Cycle Covers in Grid Graphs
GERAD Seminar, Group for Research in Decision Analysis,
Montréal,
Kanada,
May 31, 2002.
Seminar:
Optimal Rail Car Allocation
IPCO2002, Ninth Conference on Integer Programming and Combinatorial Optimization,
MIT, Cambridge, MA,
Vereinigte Staaten,
May 27-29, 2002.
Teilnahme
Second Summer School on Integer Programming and Combinatorial Optimization,
MIT, Cambridge, MA,
Vereinigte Staaten,
May 25-26, 2002.
Teilnahme
Seminar, Department of Applied Mathematics and Statistics,
University at Stony Brook, NY,
Vereinigte Staaten,
May 20, 2002.
Seminar:
Minimum Turn Cycle Covers in Grid Graphs
Combinatorial Optimization Seminar, Department of Combinatorics and Optimization, University of Waterloo,
Ontario,
Kanada,
May 16, 2002.
Seminar:
Minimum Turn Cycle Covers in Grid Graphs
Seminar, Department of Computing and Information Science, Queen's University,
Kingston, Ontario,
Kanada,
May 14, 2002.
Seminar:
Optimal Rail Car Allocation
BMBF-Workshop Verkehr, Transport, Logistik, Energiewirtschaft,
DB Systems, Frankfurt,
Deutschland,
February 28-March 1, 2002.
Vortrag:
Optimale Rangierauftragsbildung bei Industriebahnen
Mathematical Methods in Manufacturing and Logistics,
Oberwolfach,
Deutschland,
December 16-21, 2001.
Eingeladen:
Optimal Rail Car Allocation Problems
Mathematisches Kolloquium,
Brandenburgische Technische Universität Cottbus,
Deutschland,
November 13, 2001.
Seminar:
Einsatzplanung von Rangierlokomotiven mittels Spaltengenerierung
OR2001, Symposium on Operations Research,
Duisburg,
Deutschland,
September 3-5, 2001.
Vortrag:
Modeling the Freight Car Management at Industrial Plants
BMBF-Workshop Verkehr, Transport, Logistik / Energietechnik und -wirtschaft,
Technische Universität Berlin,
Deutschland,
April 5-6, 2001.
Vortrag:
Optimales Wagenmanagement bei Werks- und Industriebahnen
5th Combinatorial Optimization Workshop,
Aussois,
Frankreich,
March 5-9, 2001.
Eingeladen:
Combinatorial Restrictions on Pickup and Delivery Paths
Status seminar of the BMBF research program New Mathematical Methods in Industry and Service,
Frankfurt/Main,
Deutschland,
December 11-12, 2000.
Teilnahme
AMORE Research Seminar on Railway Optimization Problems,
Konstanz,
Deutschland,
October 16-20, 2000.
Vortrag:
Engine Scheduling and Column Generation
OR2000, International Conference on Operations Research,
Dresden,
Deutschland,
September 9-12, 2000.
Vortrag:
Scheduling the Rolling Stock of Private Railroads
ROUTE2000, International Workshop on Vehicle Routing,
Skodsborg,
Dänemark,
August 16-19, 2000.
Eingeladen:
Pickup and Delivery Paths of Restricted Combinatorial Structure
ISMP2000, 17th International Symposium on Mathematical Programming,
Atlanta, GA,
Vereinigte Staaten,
August 7-11, 2000.
Vortrag:
Pickup and Delivery Paths of Restricted Combinatorial Structure
CASPT-2000, 8th International Conference "Computer-Aided Scheduling of Public Transport",
Berlin,
Deutschland,
June 21-23, 2000.
Vortrag:
Scheduling of Switching Engines in Practice
Modellierung und Simulation von Verkehr, Arbeitskreis Mathematik in Forschung und Praxis,
Physikzentrum Bad Honnef,
Deutschland,
November 18-19, 1999.
Eingeladen:
Optimale Disposition von Rangierlokomotiven bei Werks- und Industriebahnen: Vom Bedarf zum Produkt
Mathematisches Kolloquium 1999, Forschungsseminar "Diskrete Mathematik und Optimierung",
Gerhard-Mercator-Universität Duisburg,
Deutschland,
November 17, 1999.
Seminar:
Optimale Disposition von Rangierlokomotiven bei Werks- und Industriebahnen: Vom Bedarf zum Produkt
1. BMBF Workshop Diskrete Optimierung, Verkehr und Einsatzplanung,
Konrad-Zuse-Zentrum Berlin,
Deutschland,
November 9, 1998.
Vortrag:
Umlaufplanung im Güterverkehr bei Werks- und Industriebahnen
Traffic and Transport Optimization,
Oberwolfach,
Deutschland,
November 7-13, 1999.
Eingeladen:
Optimal Engine Scheduling at Industrial In-Plant Railroads
Bonn Workshop on Discrete Optimization,
Bonn,
Deutschland,
September 28-October 2, 1998.
Eingeladen:
Engine Scheduling at Industrial Freight Railroad Companies
Symposium on Operations Research 1999,
Magdeburg,
Deutschland,
September 1-3, 1999.
Vortrag:
Engine Scheduling in Absence of Time Tables
DIMACS Workshop on the Theory and Practice of Integer Programming in honor of Ralph E. Gomory on the Occasion of his 70th Birthday,
IBM Watson Research Center, Yorktown Heights, NY,
Vereinigte Staaten,
August 2-4, 1999.
Teilnahme
DO99, Workshop on Discrete Optimization,
Rutgers University, NJ,
Vereinigte Staaten,
July 25-30, 1999.
Vortrag:
On Combinatorially Restricted Pickup and Delivery Paths
MAPSP99, Fourth Workshop on Models and Algorithms for Planning and Scheduling Problems,
Renesse,
Niederlande,
June 14-18, 1999.
Vortrag:
A Column Generation Approach to Engine Scheduling
Status seminar of the BMBF research program Mathematical Methods for Solving Problems in Industry and Business,
Erlangen,
Deutschland,
February 17-19, 1999.
Teilnahme
International Conference on Operations Research 1998,
Zurich,
Schweiz,
August 31-September 3, 1998.
Vortrag:
Computational Study of an Engine Scheduling Problem at Industrial Freight Railroad Companies
Colloquium on Intermodal Transport,
Braunschweig University of Technology,
Deutschland,
July 15, 1998.
Teilnahme
29. Session of GOR working group on logistics,
Hildesheim,
Deutschland,
July 2-3, 1998.
Teilnahme
Combinatorial and Global Optimization,
Chania, Crete,
Griechenland,
May 25-29, 1998.
Vortrag:
Mixed Integer Formulation of a Locomotive Scheduling Problem at Industrial Freight Railroads
Workshop on Computational Integer Programming,
ZIB Berlin,
Deutschland,
November 16-18, 1997.
Teilnahme
Status seminar of the BMBF research program Mathematical Methods for Solving Problems in Industry and Business,
Heidelberg,
Deutschland,
October 29-31, 1997.
Teilnahme
Symposium on Operations Research 1997,
Jena,
Deutschland,
September 3-5, 1997.
Vortrag:
The Vertex Set of a 0-1 Polytope is Strongly $P$-Enumerable
ISMP 97 - XVI. International Symposium on Mathematical Programming,
EPFL, Lausanne,
Schweiz,
August 24-29, 1997.
Vortrag:
The Vertex Set of a 0-1 Polytope is Strongly $P$-Enumerable
Workshop Preparing the Future,
EXPO2000 GmbH, Hanover,
Deutschland,
July 7, 1997.
Teilnahme
Mediengestützte wissenschaftliche Weiterbildung,
Braunschweig,
Deutschland,
March 20-21, 1997.
Teilnahme
Duisburger Kongress Mathematik in Industrie und Wirtschaft,
Duisburg,
Deutschland,
March 10-13, 1997.
Teilnahme
Third Joint IuK Workshop Multimedia in den Wissenschaften,
Würzburg,
Deutschland,
March 3-5, 1997.
Teilnahme
Workshop Metadaten und Strukturierung elektronischer Information,
SUB Göttingen,
Deutschland,
December 15-17, 1996.
Teilnahme
Summer School Discrete Optimization,
Hamburg Harburg,
Deutschland,
September 9-13, 1996.
Teilnahme
Symposium on Operations Research 1996,
Braunschweig,
Deutschland,
September 3-6, 1996.
Teilnahme