PDE-free Gauss-Newton Hessian for Wavefield Reconstruction Inversion

TitlePDE-free Gauss-Newton Hessian for Wavefield Reconstruction Inversion
Publication TypePresentation
Year of Publication2017
AuthorsZhilong Fang, Felix J. Herrmann
KeywordsPresentation, 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.

URLhttps://slim.gatech.edu/Publications/Public/Conferences/SINBAD/2017/Fall/fang2017SINBADFpfg/fang2017SINBADFpfg.pdf
URL2
Citation Keyfang2017SINBADFpfg