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. Author manuscript; available in PMC: 2020 Jun 20.
Published in final edited form as: Sci Total Environ. 2020 Mar 6;722:137701. doi: 10.1016/j.scitotenv.2020.137701

Fig. 3.

Fig. 3.

Effect of the population size and number of generations on the performance of the proposed model, (a) average cost and computational time of different population size with 300 generations in ten runs and (b) cost of different number of generations with 400 population size in ten runs, respectively, and the pentagrams were chosen to search the result. The programs were run on the same workstations with Intel (R) Xeon (R) CPU, 2.60 GHz, 32-core processor, and 128 GB RAM.