Tomas Lidén
@tomasliden.bsky.social
Researcher at VTI and Linköping University. Optimization, scheduling and maintenance in transportation - mostly railways.
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.
Fine work by @sophie.huiberts.me et al summarised nicely in @quantamagazine.bsky.social.
In optimization problems, randomness thwarts complexity.
Researchers Discover the Optimal Way To Optimize | Quanta Magazine
The leading approach to the simplex method, a widely used technique for balancing complex logistical constraints, can’t get any better.
www.quantamagazine.org
October 19, 2025 at 6:48 AM
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.
Fine work by @sophie.huiberts.me et al summarised nicely in @quantamagazine.bsky.social.
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...
Lediga jobb
Lediga jobb - Ingen beskrivning.
www.vti.se
August 15, 2025 at 9:24 AM
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...
Reposted by Tomas Lidén
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 [email protected]. There are 6 keynote talks (3 given by Nobel laureates): supernet.isenberg.umass.edu/media/Ukrain...
supernet.isenberg.umass.edu
July 15, 2025 at 3:19 PM
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 [email protected]. There are 6 keynote talks (3 given by Nobel laureates): supernet.isenberg.umass.edu/media/Ukrain...
Reposted by Tomas Lidén
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.
June 16, 2025 at 3:04 PM
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.
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...
www.sciencedirect.com/science/arti...
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…
www.sciencedirect.com
April 22, 2025 at 11:24 AM
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...
www.sciencedirect.com/science/arti...
Emma Solinen successfully defending her PhD thesis on Improving railway timetable robustness. With Prof Norman Weik as opponent. Congrats!!
February 7, 2025 at 4:11 PM
Emma Solinen successfully defending her PhD thesis on Improving railway timetable robustness. With Prof Norman Weik as opponent. Congrats!!
Reposted by Tomas Lidén
Good idea. Done.
Academics wanting to 'verify' their Bluesky profile as genuine might give an ORCID identifier in their profile and link back to their Bluesky profile from ORCID.
#AcademicSky
#AcademicSky
November 23, 2024 at 6:47 AM
Good idea. Done.