Clarke & Wright Tasarruf Algoritması ve Genetik Algoritmaya Dayalı Uçan Yardımcılı Gezgin Satıcı Problemi

Year 2019, Special Issue 2019, 185 - 192, 31.10.2019

Büşra Özoğlu Emre Çakmak Tuğçe Koç

https://doi.org/10.31590/ejosat.637816

Cited By: 7

Abstract

Son yıllarda, insansız hava aracı olarak da bilinen drone’lar lojistik sektöründeki ulaştırma faaliyetlerinin bir parçası olarak kabul edilmiştir. Bu çalışmada gezgin satıcı probleminin yeni bir versiyonu olan uçan yardımcılı gezgin satıcı problemine bir çözüm önerisi geliştirilmiştir. Çalışmanın amacı kamyon ve drone’ların koordineli bir şekilde kullanımı ile teslimat yaparak, teslimatlar tamamlanana kadar kamyon tarafından kat edilen toplam teslimat mesafesinin minimize edilmesidir. Clarke & Wright tasarruf algoritması literatürde sıklıkla kullanılan, klasik araç rotalama problemlerinde iyi sonuç veren sezgisel algoritmalardandır. Önerilen yaklaşım ile genetik algoritma ve Clarke & Wright tasarruf algoritmasının sıralı kullanımı ile drone, kamyon ya da her ikisinin eş zamanlı olarak müşterilere atanması amaçlanmaktadır. Clarke & Wright tasarruf algoritması sonuçları, iyi bilinen meta sezgisel algoritmalardan olan genetik algoritma ile iyileştirilmiştir. Bu problemin amacı atama kararlarına göre teslimat mesafesini en aza indirmektir. Bu çalışma Clarke & Wright tasarruf algoritması ve genetik algoritmanın uçan yardımcılı gezgin satıcı problemine uygulandığı ilk çalışmadır. Çeşitli örnek problem setleri üzerine yapılan hipotetik analizler yaklaşımın etkinliğini onaylamakta ve drone teslimat sistemine bir bakış açısı geliştirmektedir.  

Keywords

Uçan yardımcılı gezgin satıcı problemi, genetik algoritma, Clarke & Wright tasarruf algoritması, drone

Clarke & Wright's Savings Algorithm and Genetic Algorithms Based Hybrid Approach for Flying Sidekick Traveling Salesman Problem

Abstract

Over the past few years, drones also known as unmanned aerial vehicles (UAV), have been adopted as a part of transportation activities in logistic sector. This paper investigates a new version of traveling salesman problem called as flying sidekick traveling salesman problem(FSTSP) in which trucks and drones serve the customers in coordination with the objective of minimizing the total delivery distance of trucks at the depot after completing the deliveries. Clarke & Wright's savings algorithm is a well-known heuristics approach in literature, which gives better solution for classical vehicle routing problem. In this paper, a hybrid approach based on Clarke & Wright's savings algorithm and genetic algorithm is proposed for solving the new version of travelling salesman problem. In the proposed hybrid algorithm, which is the sequential use of genetic algorithm and Clarke & Wright’s savings algorithm, is used for assignment of the truck, drone or both of them to serve the customer. The solution of the genetic algorithm, which is the well-known metaheuristic approach, is enhanced with Clarke & Wright's savings algorithm. The aim of the problem is to minimize the total delivery distance according to the assignment decisions. This is the first hybrid approach in the literature including Clarke & Wright’s savings algorithm and genetic algorithm that applies for FSTSP problem. The hypothetical experiments conducted on various instances and results confirm the efficiency of the approach and give some insights on this drone delivery system.

Keywords

Flying sidekick traveling salesman problem, genetic algorithm, Clarke & Wright’s savings algorithm, drone

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