Seminario CMM-Data & CMM-Mining

Scalable P-wave passive seismic topography

Event Date: Jul 03, 2018 in Seminario CMM-Data & CMM-Mining, Seminars

Abstract: The goal of this work is to simultaneously reconstruct the location-dependent velocity field of seismic P-waves in an underground mine, and the unknown seismic sources during a given period, or dynamically over time, by using only registered data of passively generated P-waves (in particular, not relying on calibration shots as is usually the case). To that end, we develop a two-step algorithm based on Bayesian modeling and on the use, to our knowledge for the first time in geostatistics applications, of a stochastic gradient descent method, a scalable approach which has proved...

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