Abstract:Due to the high non-linearity of the magnetotelluric(MT) data inversion,conventional global optimization algorithms converge slowly and easily to local optimum.To solve this problem,an improved cuckoo search(ICS) algorithm combined with simplex method was proposed in this paper to realize MT data inversion.For cuckoo search(CS) algorithm is advantageous in exploration but dis-advantageous in development,the global optimal solution in particle swarm optimization was introduced to improve the local search performance.Simplex method was also used to improve the bird's nest,in order to enhance optimization precision further.The inversion results of theoretical model and real data demonstrated that ICS has higher stability,faster convergence rate and higher accuracy than CS.
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