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Designing a high-performance exact solver for the Travelling Salesman Problem in Java

Valkenberg, Louis
(2023)

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Valkenberg_40601800_2023.pdf
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Details

Supervisors
Schaus, Pierre
Faculty
Ecole polytechnique de Louvain
Degree label
Master [120] : ingénieur civil en informatique, à finalité spécialisée
Abstract
In this paper, we focus on the construction of an effective, exact solver for the Travelling Salesman Problem (TSP), a classical, NP-hard problem in computer science and operational research. The TSP, despite its deceptive simplicity, has a wide array of applications, ranging from vehicle routing to genome sequencing. Given its importance, we strive to design a solver that primarily minimizes execution time. Drawing inspiration from various approaches in operational research and constraint programming, we develop our solver in the Java programming language as a part of a comprehensive library. At its core, the solver implements a branch-and-bound framework combined with a Lagrangian relaxation technique to provide a robust lower bound estimation for optimal tour cost. The performance and implementation details of the solver are meticulously evaluated and presented, along with future research directions and potential enhancements.

Citations

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Valkenberg, L. (2023). Designing a high-performance exact solver for the Travelling Salesman Problem in Java. https://dial-mem.test.bib.ucl.ac.be/handle/2078.2/34039