Tomas Lidén

The practical vs theoretical performance gap of the simplex method is closing.
Fine work by @sophie.huiberts.me et al summarised nicely in @quantamagazine.bsky.social.

Lediga jobb Lediga jobb - Ingen beskrivning.

VTi Sweden is hiring - a research position in optimization for transport planning. Come join our team and successively take over my work! www.vti.se/om-vti/arbet...

The program for the 2nd Virtual Conference on Ukraine is finalized, thanks to KTH. Registration is free & all are welcome if they send their name, position, & affiliation to ukraine-2025@kth.se. There are 6 keynote talks (3 given by Nobel laureates): supernet.isenberg.umass.edu/media/Ukrain...

I just want 'ai' to go away. The simultaneous widespread poisoning of knowledge; attempt to end-run professions that cultivate critical thinking; and sucking the joy out of everything while ramming unwanted technology down our throats is so exhausting. I just can't anymore.

A bi-level optimization model for project scheduling and traffic flow routing in railway networks Long-term tactical infrastructure planning for a transportation network consists of deciding on renewals and major maintenance works. Such projects co…

Very happy that our paper "A bi-level optimization model for project scheduling and traffic flow routing in railway networks" has been published in Transp. Res. Part B. Many thanks to my co-authors, contributors, and to Trafikverket for financing the project.
www.sciencedirect.com/science/arti...

Emma Solinen successfully defending her PhD thesis on Improving railway timetable robustness. With Prof Norman Weik as opponent. Congrats!!

Good idea. Done.