Pengfei He and Jin-Kao Hao. Iterated two-phase local search for the colored traveling salesmen problem. Engineering
Applications of Artificial Intelligence Volume 97, 104018, January 2021, https://doi.org/10.1016/j.engappai.2020.104018
The benchmark instances, the certificates of our best solutions and the
sources of our algorithm (as well as our implementation of the ABC
algorithm compared in the paper) are
available here.