PDE-free Gauss-Newton Hessian for Wavefield Reconstruction Inversion
| Title | PDE-free Gauss-Newton Hessian for Wavefield Reconstruction Inversion |
| Publication Type | Presentation |
| Year of Publication | 2017 |
| Authors | Zhilong Fang, Felix J. Herrmann |
| Keywords | Presentation, SINBAD, SINBADFALL2017, SLIM |
| Abstract | In this work, we present a PDE-free Gauss-Newton Hessian for Wavefield Reconstruction Inversion. With this PDE-free Gauss-Newton Hessian, we can compute matrix-vector products without additional PDE solves. Thus, we are able to use the second order optimization method Gauss-Newton method with a roughly equal computational cost of first-order methods such as the gradient-descent method. |
| URL | https://slim.gatech.edu/Publications/Public/Conferences/SINBAD/2017/Fall/fang2017SINBADFpfg/fang2017SINBADFpfg.pdf |
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| Citation Key | fang2017SINBADFpfg |