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 |
URL2 | |
Citation Key | fang2017SINBADFpfg |