科学研究
报告题目:

Seismic Tomography with Frozen Gaussian Approximation and Random Batch Method

报告人:

Prof. Zhongyi Huang Department of Mathematical Sciences, Tsinghua University

报告时间:

报告地点:

腾讯会议ID:569 517 783

报告摘要:

Seismic tomography solves high-dimensional optimization problems to image subsurface structures of Earth. In this talk, we propose to use random batch methods to construct the gradient used for iterations in seismic tomography. Specifically, we use the frozen Gaussian approximation to compute seismic wave propagation, and then construct stochastic gradients by random batch methods. We also provide a rigorous convergence analysis for the inverse problems of acoustic wave propagation arising from seismic tomography.

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