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A novel solution encoding in the Differential Evolution algorithm for optimizing tourist trip design problems

Trachanatzi Dimitra, Rigakis Manousos, Taxidou Andromachi, Marinaki Magdalini, Marinakis Ioannis, Matsatsinis Nikolaos

Πλήρης Εγγραφή


URI: http://purl.tuc.gr/dl/dias/A3866ECD-C8D8-466C-B369-E5D47A983799
Έτος 2019
Τύπος Πλήρης Δημοσίευση σε Συνέδριο
Άδεια Χρήσης
Λεπτομέρειες
Βιβλιογραφική Αναφορά D. Trachanatzi, M. Rigakis, A. Taxidou, M. Marinaki, Y. Marinakis, and N. Matsatsinis, “A novel solution encoding in the Differential Evolution algorithm for optimizing tourist trip design problems,” in Learning and Intelligent Optimization, vol 11968, Lecture Notes in Computer Science, N. Matsatsinis, Y. Marinakis, P. Pardalos, Eds., Cham, Switzerland: Springer Nature, 2020, pp. 253–267, doi: 10.1007/978-3-030-38629-0_21. https://doi.org/10.1007/978-3-030-38629-0_21
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Περίληψη

In this paper, a tourist trip design problem is simulated by the Capacitated Team Orienteering Problem (CTOP). The objective of the CTOP is to form feasible solution, as a set of itineraries, that represent a sequence visit of nodes, that maximize the total prize collected from them. Each itinerary is constrained by the vehicle capacity and the total travelled time. The proposed algorithmic framework, the Distance Related Differential Algorithm (DRDE), is a combination of the widely-known Differential Evolution algorithm (DE) and a novel encoding/decoding process, namely the Distance Related (DR). The process is based on the representation of the solution vector by the Euclidean Distance of the included nodes and offers a data-oriented approach to apply the original DE to a discrete optimization problem, such as the CTOP. The efficiency of the proposed algorithm is demonstrated over computational experiments.

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