Proceedings of the third international conference on Genetic algorithms
Future Generation Computer Systems
Adaptation in Natural and Artificial Systems: An Introductory Analysis with Applications to Biology, Control and Artificial Intelligence
Performance of Various Computers Using Standard Linear Equations Software
Performance of Various Computers Using Standard Linear Equations Software
A hybrid genetic algorithm for the job shop scheduling problems
Computers and Industrial Engineering
Ant Algorithms: Theory and Applications
Programming and Computing Software
Computers and Operations Research
A particle swarm optimization for the vehicle routing problem with simultaneous pickup and delivery
Computers and Operations Research
Implementation of an Effective Hybrid GA for Large-Scale Traveling Salesman Problems
IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics
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The vehicle routing problem with simultaneous pickup and delivery is an important variation of VRP where customers require simultaneous pickup and delivery service. In this paper, we proposed a hybrid genetic algorithm to solve this problem. In the proposed algorithm, we proposed a pheromone-based crossover operator that utilizes both the local and global information to construct offspring. The local information used in crossover operator includes edge lengths and adjacency relations, while the global information is stored as pheromone trails. To improve the performance of genetic algorithm, a local search procedure is integrated into GA, and acts as the mutation operator. Our hybrid algorithm was tested on benchmark instances, and experimental results are conclusively in favor of our algorithm.