Quantum Physics Division
Faculty of PhysicsAdam Mickiewicz University
Publications

Traveling salesman problem with a center

A. Lipowski1 , D. Lipowska1

1 Faculty of Physics, A. Mickiewicz University, 61-614 Poznań, Poland
1 Institute of Linguistics, Adam Mickiewicz University, 60-371 Poznan, Poland

Phys. Rev. E, 71, 067701 (2005)
DOI: 10.1103/PhysRevE.71.067701

Abstract:

We study a traveling salesman problem where the path is optimized with a cost function that includes its length L as well as a certain measure C of its distance from the geometrical center of the graph. Using simulated annealing (SA) we show that such a problem has a transition point that separates two phases differing in the scaling behavior of L and C, in efficiency of SA, and in the shape of minimal paths.

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