Abstract
We study the clustered generalized traveling salesman pro-blem (CGTSP), which is an extension of the generalized traveling salesman problem (GTSP), which in turn generalizes the well-known traveling salesman problem (TSP). The investigated problem was motivated by several practical applications such as modern logistics, data clustering, internet networks, etc., and it is defined on a graph, whose set of vertices are split up into clusters, and the clusters are further partitioned into sub-clusters of vertices. The aim of the CGTSP is to look for a minimum length tour that visits exactly one vertex from each sub-cluster with the main constraint that all the sub-clusters belonging to each given cluster are visited contiguously. In this paper, we describe a hybrid algorithm for solving the CGTSP that integrates the Dijkstra’s shortest path algorithm and a TSP solver within a genetic algorithm. Finally, we present a new set of instances for CGTSP derived from the GTSP_LIB [8] and some preliminary computational results are stated on a set of 40 instances to asses the efficiency of our designed hybrid based genetic algorithm.
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Acknowledgments
This work was supported by the project COSO that received funding from Romania’s National Recovery and Resilience Plan PNRR-III-C9-2022-I8, under grant agreement 760070.
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Cosma, O., Pop, P.C., Cosma, L. (2023). A Hybrid Based Genetic Algorithm for Solving the Clustered Generalized Traveling Salesman Problem. In: García Bringas, P., et al. Hybrid Artificial Intelligent Systems. HAIS 2023. Lecture Notes in Computer Science(), vol 14001. Springer, Cham. https://doi.org/10.1007/978-3-031-40725-3_30
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