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GECCO
2011
Springer

A hybrid heuristic approach for solving the generalized traveling salesman problem

7 years 8 months ago
A hybrid heuristic approach for solving the generalized traveling salesman problem
The generalized traveling salesman problem (GTSP) is an NPhard problem that extends the classical traveling salesman problem by partitioning the nodes into clusters and looking for a minimum Hamiltonian tour visiting exactly one node from each cluster. In this paper, we combine the consultant-guided search technique with a local-global approach in order to solve efficiently the generalized traveling salesman problem. We use candidate lists in order to reduce the search space and we introduce efficient variants of 2-opt and 3-opt local search in order to improve the solutions. The resulting algorithm is applied to Euclidean GTSP instances derived from the TSPLIB library. The experimental results show that our algorithm is able to compete with the best existing algorithms in terms of solution quality and running time. Categories and Subject Descriptors I.2.8 [Artificial Intelligence]: Problem Solving, Control Methods, and Search – heuristic methods. General Terms Algorithms. Keywords ...
Petrica C. Pop, Serban Iordache
Added 28 Aug 2011
Updated 28 Aug 2011
Type Journal
Year 2011
Where GECCO
Authors Petrica C. Pop, Serban Iordache
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