OATAO - Open Archive Toulouse Archive Ouverte Open Access Week

A Parallel Evolution Strategy for Acoustic Full-Waveform Inversion

Diouane, Youssef and Calandra, Henri and Gratton, Serge and Vasseur, Xavier A Parallel Evolution Strategy for Acoustic Full-Waveform Inversion. (2014) In: EAGE Workshop on High Performance Computing for Upstream, 7 September 2014 - 10 September 2014 (Chania, Greece).

[img]
Preview
(Document in English)

PDF (Author's version) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
274kB

Official URL: http://dx.doi.org/10.3997/2214-4609.20141923

Abstract

In this work, we propose another alternative to find an initial velocity model for the acoustic FWI without any physical knowledge. Motivated by the recent growth of high performance computing (HPC), we tackle the high non-linearity of the problem to minimize, using global optimization methods which are easy to parallelize, in particular, evolution strategies. The first contribution adapt evolution strategies to the FWI setting where the cost function evaluation is the most expensive part. The second contribution is the parameterization of the regarded problem, by being able to represent the model, as faithfully as possible, while limiting the number of parameters needed, since each additional parameter is an additional dimension to explore. The last contribution is to propose a highly parallel evolution strategy adapted to the FWI setting. The initial results on the Salt Dome velocity model using low frequency range, show that great improvement can be done to automate the FWI.

Item Type:Conference or Workshop Item (Paper)
Additional Information:ISBN:9781634391672
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:Other partners > Airbus (FRANCE)
French research institutions > Centre National d'Études Spatiales - CNES (FRANCE)
French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Other partners > EDF (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE)
French research institutions > Office National d'Etudes et Recherches Aérospatiales - ONERA (FRANCE)
Other partners > Total (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Université de Toulouse > Université Toulouse - Jean Jaurès - UT2J (FRANCE)
Université de Toulouse > Université Toulouse 1 Capitole - UT1 (FRANCE)
Other partners > Météo France (FRANCE)
Other partners > SAFRAN (FRANCE)
Laboratory name:
Statistics:download
Deposited By: Youssef Diouane
Deposited On:07 Mar 2018 13:10

Repository Staff Only: item control page