Industrial Engineering Journal ›› 2020, Vol. 23 ›› Issue (5): 58-66,74.doi: 10.3969/j.issn.1007-7375.2020.05.008

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A Research on Vehicle Routing Problems with Time Windows Based on Density Peak Clustering

WU Bin, SONG Yan, CHENG Jing, DONG Min   

  1. School of Economics and Management, Nanjing Tech University, Nanjing 211816, China
  • Received:2019-08-20 Published:2020-10-30

Abstract: A new hybrid algorithm (DGA) combining density peak clustering (DPC) and genetic algorithm (GA) is proposed to solve the vehicle routing problems with time windows. The DPC is used to cluster the customers to reduce the scale of the problem, and then the clustered customers are optimized by GA. The experimental results show that the average value of DGA on the nine data sets is 13.41% and 4.7% higher than simulated annealing (SA) and Tabu search, respectively, and the maximum increase of single data set is 26.4%. It is proved that the algorithm is an efficient method for solving vehicle scheduling problems.

Key words: density peak clustering, vehicle routing problems with time windows (VRPTW), vehicle scheduling, genetic algorithm

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