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Management Team
Dutch OR Groups


31th conference on


mathematics of operations research


Organized by LNMB
(Landelijk Netwerk Mathematische Besliskunde)

January 17 - 19, 2006

Conference Center "De Werelt", Lunteren, The Netherlands

Annual meeting of Dutch senior and junior researchers
in the Mathematics of Operations Research.

The program offers high-quality research and applications
and should appeal to both academic researchers
and to management consultants in trade and industry.

The conference is sponsored by the Gebiedsbestuur Exacte Wetenschappen (NWO),
the Thomas Stieltjes Institute for Mathematics and the Mathematical Research Institute (MRI).

For a special announcement (including registration form) of click here.

Program Invited Speakers Abstracts Invited Presentations
Seminar Abstracts Presentations Seminar Registration Seminar
Parallel Sessions PhD Students Abstracts Presentations PhD Students
Registration Registered Participants How to get there Conference Secretariat



Ten invited lectures
Bruce Golden (University of Maryland, USA) The Split Delivery Vehicle Routing Problem: Using Integer Programming within a Heuristic Framework
Bruce Golden (University of Maryland, USA) The Minimum Label Spanning Tree Problem: Some Genetic Algorithm Approaches
Shane Henderson (Cornell University, Ithaca, USA) Call Centers and Poisson's Equation
Shane Henderson (Cornell University, Ithaca, USA) Variance Reduction for Markov Processes and Poisson's Equation
Pablo Parrilo (MIT, Cambridge, USA) Sum of Squares Programs: What are They Good For, and How To Solve Them
Pablo Parrilo (MIT, Cambridge, USA) SOS/SDP methods: from optimization to games
Philippe Robert (INRIA, Rocquencourt, France) Tree Algorithms, Communication Networks and Data Structures
Philippe Robert (INRIA, Rocquencourt, France) Scaling Methods for Communication Networks
Lex Schrijver (Centre for Mathematics and Computer Science & University of Amsterdam, The Netherlands) Matchings, Colourings, Dimers
Lex Schrijver (Centre for Mathematics and Computer Science & University of Amsterdam, The Netherlands) Exploiting Symmetry in Optimization

Presentation of the GIJS DE LEVE PRIZE for the best PhD thesis in 2003, 2004 and 2005 (Tuesday 17.15 - 18.00)

Presentations by PhD students
(Tuesday 14.00 - 15.00 and Wednesday 14.30 - 16.00)
For each contributed paper by a PhD student a senior member of the society will act as discussant.
The following PhD students of the LNMB will present a paper at the meeting:
Marco Bijvank (Vrije Universiteit Amsterdam)
Heuristics for Car Stock Management
Umut Corbacioglu (Erasmus University Rotterdam)
Setting the holding cost rates in a multi-product system with remanufacturing
Guido Diepen (University of Utrecht)
Minimizing total weighted tardiness on a single machine with release dates and equal-length jobs
Menno Dobber (Vrije Universiteit Amsterdam) An effective prediction method for running times of jobs on shared processors
Regina Egorova (CWI, Amsterdam)
Sojourn time tails in the M/D/1 processor sharing queue
Gamal Elabwabi (Delft University of Technology)
Nonnegative bilinear functions on the Cartesian product of Lorentz cones
Nebosja Gvozdenovic (CWI, Amsterdam) Approximating the chromatic number of a graph by semidefinite programming
René Haijema (University of Amsterdam) Blood platelet production: optimization by dynamic programming and simulation
Wilco van den Heuvel (Erasmus University Rotterdam) Lower bounds on the worst case ratio for a class of heuristics for the economic lot-sizing problem
Birgit Heydenreich (Maastricht University) Mechanisms for decentralized online scheduling
Pascal Lieshout (CWI, Amsterdam) Tandem Brownian queues
Joyce van Loon (Maastricht University) How to sell a graph: some guidelines for the graph retailer
Hossein Mansouri (Delft University of Technology) A simplified O(nL) infeasible interior-point algorithm for linear optimization using full Newton steps
Martijn Mes (University of Twente) Opportunity costs calculation in agent-based vehicle routing and scheduling
Gergely Mincsovics (Eindhoven University of Technology)
Workload-dependent capacity controlitle
Bas Verheijen (Erasmus University Rotterdam) Workload-dependent capacity control
Manual Vieira (Delft University of Technology)
Interior Point Methods for symmetric optimization based on kernel functions
Maria Vlasiou (EURANDOM, Eindhoven)
Exact solution to a Lindley-type equation on a bounded support
Wemke van der Weij CWI, Amsterdam)
Stability and throughput in a two-node queueing network with a shared resource

Seminar "Operations Research and Health Care"
On the last day of the conference, Thursday January 19 there is a one-day special seminar on "Operations Research (OR) and Health Care", organized in cooperation with the "Nederlands Genootschap voor Besliskunde" (NGB).  For a special announcement (including registration form) of this seminar click here.


Anne Jonkman, program director "Sneller Beter".


1. OR and logistics in health care
2. OR and medical treatment
3. OR and decision making in health care

Speakers Theme 1:
Michael Carter (Healthcare Resource Modeling Laboratory, Toronto, Canada) Operations Research in the health care or Who let the engineer into the hospital?
Mark van Houdenhoven (Erasmus Medical Center, Rotterdam) Hospital process optimization: where to start?
Gerhard Wullink ((Erasmus Medical Center, Rotterdam) Health care process optimization: mathematics is the easy part!
Erwin Hans (University of Twente, Enschede) Operations research based process optimization at Erasmus MC
Speakers Theme 2:
Dick den Hertog Introduction
Eva Lee (Georgia Institute of Technology, Atlanta, USA) Operations Research Challenges in Medicine and HealthCare
Aswin Hoffmann (Radboud University, Nijmegen) Multi-objective fluence map optimization for intensity-modulated radiotherapy
Marjolein van Ballegooijen & Dik Habbema (Erasmus Medical Center, Rotterdam) Health care efficiency improvement in action: the case of cervical cancer screening in the Netherlands
Speakers Theme 3:
Joris van de Klundert (Maastricht University) Introduction
Maarten Rutgers (Wilhelmina Hospital, Assen) Integral improvement of the orthopaedic chain
Etienne Rouwette (Radboud University, Nijmegen) System dynamics modeling on health care: supply and demand of dementia care