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- W3084034482 abstract "This paper is devoted to theoretical and numerical investigation of the local minimum issue in seismic full waveform inversion (FWI). This paper provides a mathematical analysis of optimal transportation (OT) type objective function's differentiability and proves that the gradient obtained in the adjoint-state method does not depend on the particular choice of the Kantorovich potentials. A novel approach using the softplus encoding method is presented to generalize and impose the OT metric on FWI. This approach improves the convexity of the objective function and mitigates the cycle-skipping problem. The effectiveness of the proposed method is demonstrated numerically on an inversion task with the benchmark Marmousi model." @default.
- W3084034482 created "2020-09-14" @default.
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- W3084034482 date "2020-09-09" @default.
- W3084034482 modified "2023-09-27" @default.
- W3084034482 title "Analysis of Seismic Inversion with Optimal Transportation and Softplus Encoding" @default.
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