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The trajectory of the objective function for the inversion of the misclassified GPR data. The initial solutions derived from the misclassification result and the correct classification result are used to perform the inversion, respectively. For the misclassification result, the LM algorithm converges after 60 iterations, and for the correct classification result, the LM algorithm converges after 30 iterations. In both cases, the LM algorithm converges fast.
