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	Center for Nonlinear Studies
	Home  ▶ People   Current   Executive Committee   Postdocs   Visitors   Students   Research   Publications  ▶ Conferences   Workshops   Sponsorship  ▶ Talks   Seminars   Postdoc Seminars Archive   Quantum Lunch   Quantum Lunch Archive   P/T Colloquia   Archive   Ulam Scholar     Postdoc Nominations  ▶ Student Requests   Student Program  ▶ Visitor Requests   Description   Past Visitors  ▶ Services   General     History of CNLS     Maps, Directions   CNLS Office   T-Division   LANL				Thursday, August 10, 20234:00 PM - 4:30 PMCNLS Conference Room (TA-3, Bldg 1690) Student Seminar Applied Machine Learning Summer School Student Seminar: Towards High-Fidelity Data-Driven Solutions of the Helmholtz Equation for Full Waveform Inversion Jacob HelwigEES-17 / Department of Computer Science & Engineering, Texas A&M University Seismic imaging using the full waveform inversion has important applications in reservoir identification and carbon sequestration, however, it requires costly forward modeling. To increase efficiency using neural surrogate models, we identify several techniques motivated by properties of the wave equation for improving solution accuracy in the frequency domain, including an expressive source term encoding and wavefield mixup. We demonstrate improved performance on the OpenFWI dataset. Host: Hanchen Wang (T-5) and Youzuo Lin (EES-17)