Dutch Seminar on Optimization

Welcome to the website of the Dutch Seminar on Optimization.


The Dutch Seminar on Optimization is an initiative to bring together researchers from the Netherlands and beyond. The objective is to establish a new forum for the Dutch optimization community to come together, to help provide a spotlight for up and coming local talent, and to bring in high quality international speakers. 

The topics of the seminar are centered around Optimization in a broad sense, but with a focus on (though not limited to) the theoretical foundations of discrete and continuous optimization. We would like to invite all researchers, especially also PhD students, who are working on related topics to join the events. 

The next talk of the seminar will be given on Thursday, January 27, 2022, 16:00 by Andreas Wiese (VU University); see the events section for more details.

If you want to be subscribed to the mailing list of the seminar to receive regular announcements, please contact Sven Polak (sven.polak@cwi.nl

Call for Lightning talks

Our first lightning talk was very successful, so we will now have 2 per year, in between the first two regular seminars of each semester. Lightning talks are 1 to 5 min talks meant to foster interaction in the community. This can include:

1. Introducing yourself & what you do
2. Announcing a recent result & why its cool
3. Posing an open problem / advertising a research area (or an open position)
4. Anything awesome you want to tell us about :)

If you'd like to sign up for a talk, please sign up here with your name and the subject of your talk (can be TBD) by *Friday February 4th*:


Call for contributed PhD talks

We have an open call for 2x contributed PhD talks for the PhD seminar slot on Thursday March 31th (4pm-5pm). Each PhD talk is 25 mins + 5 mins for questions, and can be on any topic of interest to the optimization and theoretical computer science community. This is a great opportunity to give a talk in a friendly environment and to get feedback from your peers.

To submit a talk proposal, please fill out the following google form by *Friday February 11th*:


See this page for more information. The 2 selected speakers will be informed by Friday February 25th.


The seminar will be organized online (for now) and take place once a month. The default policy is to have the seminar on Thursday of the last week of the month. The talks will be announced through this website and by email using the seminar's mailing list. 

The video recordings and pdfs of the slides of the lectures can be found in the events section (links below).

Upcoming Seminars

January 27, 2022, 16:00 Andreas Wiese (VU University) A PTAS for the Unsplittable Flow on a Path problem Link
February 10, 2022, 16:00 Several speakers Lightning talks Link
March 03, 2022, 16:00 Friedrich Eisenbrand (EPFL Lausanne) TBD Link
March 31, 2022, 16:00 Two contributed PhD talks TBD Link


Previous Seminars

December 9, 2021, 16:00 Hadi Abbaszadehpeivasti (Tilburg University) On the convergence rate of DCA Video and slides
December 9, 2021, 16:30 Utku Karaca (Erasmus University) Differentially Private Resource Sharing Video and slides
November 23, 2021, 16:00
Britta Peis (RWTH Aachen) Primal-dual approximation framework for weighted integer covering problems Video and slides
October 28, 2021, 16:00 Lucas Slot (CWI Amsterdam) Degree bounds for positivity certificates and the polynomial kernel method Video and slides
October 28, 2021, 16:30 Juan José Maulén (RU Groningen) Acceleration of fixed point algorithms via inertia Video and slides
September 30, 2021, 16:00 Martin Skutella (TU Berlin) A Faster Algorithm for Quickest Transshipments via an Extended Discrete Newton Method Video and slides
August 26, 2021, 16:00 Samuel Fiorini (Bruxelles) Integer programs with bounded subdeterminants and two nonzeros per row Video and slides
June 24, 2021, 16:00 Several speakers Lightning talks Link
May 27, 2021, 16:00 Céline Swennenhuis (TU/E) A Faster Exponential Time Algorithm for Bin Packing With a Constant Number of Bins Video and slides
May 27, 2021, 16:30 Sophie Huiberts (CWI) Combinatorial Diameter of Random Polytopes Video and slides
April 29, 2021, 16:00 Juan Peypouquet (Groningen) Function Curvature and Algorithm Complexity in Convex Optimization Video and slides
March 25, 2021, 16:00 Moritz Buchem (Maastricht) Additive Approximation Schemes for Load Balancing problems Video and slides
March 25, 2021, 16:30 Michelle Sweering (CWI) On Breaking k-Trusses Video and slides
February 25, 2021, 16:00 Santanu Dey (Georgia Tech) Sparse PSD approximation of the PSD cone Video and slides
January 28, 2021, 16:00 David de Laat (TU Delft) Sphere packing and semidefinite programming Video and slides
December 16, 2020, 16:00 Laura Sanita (TU Eindhoven) On the diameter and the circuit-diameter of polytopes Video and slides


The kick-off of the seminar took place on Wednesday, December 16, 2020, 16:00, with a lecture by Laura Sanita (TU Eindhoven).


This seminar series is initiated by the CWI Networks and Optimization group (Nikhil Bansal, Daniel Dadush, Monique Laurent, Guido Schäfer), jointly with other Dutch research groups in Optimization.

There is an organization committee in place that is in charge of reaching out to speakers. The committee consists of the following members: Jesper Nederlof (Utrecht University), Daniel Dadush (CWI), Steven Kelk (Maastricht University), Etienne de Klerk (Tilburg University), Fernando Oliveira (TU Delft), Juan Peypouquet (RU Groningen), Rene Sitters (VU Amsterdam), Frits Spieksma (TU Eindhoven), Leen Stougie (CWI), Marc Uetz (University of Twente), Tjark Vredeveld (Maastricht University).


If you have any suggestions for speakers (or want to give a talk yourself), please feel free to contact any of the committee members. If you have any general suggestions or questions related to the seminar, please get in touch with Daniel Dadush (dadush@cwi.nl).