TSP solver wins $100k prize at Amazon's “Last Mile” ML Challenge (using no ML) (amazon.science)

General introduction to the TSP problem video by a member of the winning team:

https://m.youtube.com/watch?v=vQMFVLa7yYQ

The short papers accompanying the submissions are not out yet, but apparently the winning team did not use ML at all:

https://mobile.twitter.com/alexkontorovich/status/1423259110...