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Workshop on Robust Optimiziation

September 19th and 20th 2019 at the University of Siegen



This workshop aims at being a platform for exchange in all areas related to robust optimization, including static and adjustable robust optimization, ranging from combinatorial optimization and integer programming to convex optimization and distributionally robst approaches.

Invited speakers

Agostinho Agra
Christoph Buchheim
Xuan Vinh Doan
Nicole Megow



Registration for the workshop is free of charge. However, spaces are limited and registrations will be confirmed on first-come, first-served principle. To register, please send an email to michael.poss@lirmm.fr indicating your name, affiliation, and wether you intend to give a presentation.


Registration is now closed


Download Program here

Download Workshop Presentations here


Day 1 (Thursday, 19 September 2019)     Day 2 (Friday, 20 September 2019) 
Room: US-A 234
08:30-08:55 Arrival and Registration 
08:55-10:00 Opening and Session 1
 Vinh Doan (Warwick University)
  Robust and ambiguous cooperative games
Trivikram Dokka (Lancaster University)
 Network pricing under ambiguity with partial information
 Coffee Break
Session 2 
Jannis Kurtz (RWTH Aachen University)
 Oracle-based Algorithms for Binary Two-Stage Robust Optimization
Marc Goerigk (University of Siegen)
 Generating Hard Instances for Robust Combinatorial Optimization
Michael Hartisch (University of Siegen)
 Quantified Integer Programming with Decision-Dependent Uncertainty
Lunch Break
Session 3
Nicole Megow (Bremen University)
 Optimization with Explorable Uncertainty
Spyros Angelopoulos (CNRS Sorbonne University)
 Online Computaiton with Untrusted Advice
Coffee Break
15:30-17:30Session 4
Sigrid Knust (Osnabrück University)
 MIP-based approaches for robust storage loading problems with stacking constaints
Sven Boge (Osnabrück University)
 Robust Optimization for premarshalling with uncertain priority classes
Roel van den Broek (Utrecht University)
 Finding robust shunting plans
Kahled Elbassioni (Khalifa University of Science and Technology)
 Some Black-Box Reductions for Cost-Robust Discrete Optimization Problems
After workshop
Dinner (19:00, Altes Zeughaus, Siegen)
Room: US-A 120
 Session 1
Argostinho Agra (University Aveiro)
 Computational and theoretical aspects related to complex robust inventory problems
Pavel Zielinski (Wroclaw University of Science and Technology)
 Single-item lot sizing problem with backordering under demand uncertainty
Coffee Break 
11:00-12:30Session 2 
11:00-11:30Adam Kasperski (Wroclaw University of Science and Technology)
 Two-stage combinatorial problems under convex uncertainty
Stefan Lendl (TU Graz)
 Recoverable Robust Optimization with Interval Unvertainties
Michael Poss (CNRS Montpellier)
 Approximating robust bin-packing with budgeted uncertainty
Lunch Break
13:30-15:00Session 3 
Christoph Buchheim (TU Dortmund)
 Oracle-based Algorithms for Robust Combinatorial Optimization
Christoph Dürr (Université Paris 6)
 Scheduling with processing time oracle
Coffee Break
15:30-16:30Session 4
Han Hoogeveen (Utrecht University)
 Solving stochastic machine scheduling problems by estimating the solution value within local search
Andreas Schmitt (TU Darmstadt)
 An Interdiction Approach for the Design of Robust High-Rise Water Supply Systems






Thursday: US-A 234

Friday: US-A 120 

Unteres Schloss 3  

57072 Siegen       



Nearby airports

Nearby airports are Frankfurt Airport (FRA) and Cologne Bonn Airport (CGN).

Train connections:

If you come from Frankfurt Airport, the trip by train takes about 1.5 hours. For this you drive from the station "Frankfurt Flughafen" to the station "Frankfurt HBF" and change here to "Siegen HBF" in the regional train "RE99".

If you come from Cologne Bonn Airport, the trip by train also takes about 1.5 hours. Therefor you drive from the station "Köln/Bonn Flughafen" to the station "Siegburg/Bonn" taking the "S19. In "Siegburg/Bonn" you change into "RE9" to "Siegen HBF".

Please check the website of the Deutsche Bahn for the exact depature times.

At the main train station Siegen (HBF) you cross the forecourt and follow the pedestrian zone (Bahnhofstraße) across the square towards the Sieg river (slightly to your left). Then you cross the bridge across the Sieg towards the Kölner Tor. Cross at the traffic light and follow the pedestrian zone (Kölner Straße) uphill. This will lead you past the "Karstadt". Once past it, you veer right onto the "Alte Poststraße" to the campus. You reach the "Unteres Schloss" and the building block US-A if you turn right into the street "Unteres Schloß".

Directions by car:

From Autobahn 45 take the exit Siegen (Nr. 21) on the HTS, (B54 / B62), towards Siegen/Netphen to the exit Siegen-Eintracht. From there follow Koblenzer Straße towards Unteres Schloss. Follow the signs for parking.


 The following hotels are some options within walking distance (ca. 1.3km) to the workshop.

Confirmed Participants


Adebisi, AjibolaThe University of Ibadan
Agra, Agostinho University Aveiro
Altin, Islam
Eskisehir Osmangazi Universityp 
Angelopoulos, Spyros
CNRS, Sorbonne University
Anoshkina, Yulia
Christian-Albrechts-University of Kiel
Boge, Sven
Universität Osnabrück
Buchheim, Christoph
TU Dortmund
Dione, Dethie
Universite Cheikh Anta Diop
Doan, Vinh
Warwick University
Dokka, Trivikram
Lancaster University
Dürr, Christoph
Universite Paris 6
Elbassioni, Khaled
Khalifa University of Science and Technology
Garuba, Francis
Lancaster University
Goerigk, Marc
University of Siegen
Hartisch, Michael
University of Siegen
Hoogeveen, Han
Utrecht University
Jaisawal, Pushkar
Institute of Science, Banaras Hindu University
Kasperski, Adam
Wroclaw University of Science and Technology
Knust, Sigrid
Osnabrück University
Kurtz, Jannis
Aachen University
Lendl, Stefan
TU Graz
Lorenz, Ulf
University of Siegen
Megow, Nicole
Bremen University
Pesch, Erwin
University of Siegen
Poss, Michael
CNRS, Montpellier
Schmitt, Andreas
TU Darmstadt
Singh, Vinai Kumar
Inderprastha Enginering College
van den Broek, RoelUtrecht University
van Stee, Rob
University of Siegen
Wang, Chenghao
Universite de Technologie de Compiegne
Zielinski, Pawel
Wroclaw University of Science and Technology


 Workshop Group Picture



Marc Goerigk
Michael Poss Michael.Poss@lirmm.fr

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