Author

Xin Liu

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Preprint Sep 2026

Convergent representations of elastic-wave structure emerge across deliberately distinct seismic training routes

Elastic-wave propagation connects laboratory fracture with earthquakes, raising the prospect of seismic models that reuse waveform structure across physical scales. Here we show that the phase picker PNSN and the multi-task model SeismicXM organize unseen laboratory acoustic emissions around common waveform relations....

Zi-Ye Yu, Yu-Qi Cai, Xin Liu · 0 citations

Preprint Sep 2026

From Image Morphology to Multiphysics Earth Posteriors

Structural learning and physical-property inference can draw on different sources of knowledge. We learn morphology from 33,140 natural, satellite, and texture images, without geological training models, then infer Earth properties from physical observations. Identical frozen weights map 128 coordinates into each $256\...

Zi-Ye Yu, Xin Liu, Yu-Qi Cai · 0 citations

Preprint Sep 2026

Structure-dependent failure modes of neural priors in acoustic full-waveform inversion

Frequency continuation does not improve every neural representation, and better velocity recovery need not imply better prediction of unseen waveforms. We compare a velocity grid with total-variation regularization, an adapted sinusoidal coordinate network (SIREN), and a frozen image generator with a full-grid residual...

Zi-Ye Yu, Xin Liu, Yu-Qi Cai · 0 citations