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physics.geo-ph2024
Propagating the prior from shallow to deep with a pre-trained velocity-model Generative Transformer network
Randy Harsuko, Shijun Cheng, Tariq Alkhalifah
Building subsurface velocity models is essential to our goals in utilizing seismic data for Earth discovery and exploration, as well as monitoring. With the dawn of machine learnin…
physics.geo-ph2024
A self-supervised learning framework for seismic low-frequency extrapolation
Shijun Cheng, Yi Wang, Qingchen Zhang +2
Full waveform inversion (FWI) is capable of generating high-resolution subsurface parameter models, but it is susceptible to cycle-skipping when the data lack low-frequency. Unfort…