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An Improved Genetic Algorithm for the Capacitated Transshipment Nodes Location

A location problem of the capacitated transshipment nodes in joint allocation and transportation of mass goods and materials is studied. Transportation costs, operating variable costs of transshipment nodes are considered, and a nonlinear mixed integer programming model for the transshipment nodes location is proposed. To solve the model effectively, a matrix-based encoding, cost matrix benchmarking-based mutation genetic algorithm is also developed. Finally, the validity of the model and algorithm was demonstrated by a numerical example.