PDE-free Gauss-Newton Hessian for Wavefield Reconstruction Inversion

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

KeywordsPresentation, private, SINBAD, SINBADFALL2017, SLIM
URLhttps://www.slim.eos.ubc.ca/Publications/Private/Conferences/SINBAD/2017/Fall/fang2017SINBADFpfg/fang2017SINBADFpfg.pdf
URL1

https://www.slim.eos.ubc.ca/Publications/Private/Conferences/SINBAD/2017...

Citation Keyfang2017SINBADFpfg