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Xiao-Yan Cheng

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Open access 2026

Adaptive-Dictionary-Regularized 3-D Direct Inversion of Surface-Wave Dispersion Data

Conventional global smoothing regularization suppresses velocity anomaly amplitudes and blurs structural boundaries in regions of sparse ray coverage, limiting fine-scale crustal imaging under nonuniform observational conditions. This study introduces local sparse regularization based on adaptive-dictionary learning in...

Zhi-Wen Li, Jian-Yang Ding, Xiao-Yan Cheng et al. · 0 citations

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