Yonghyun Chung, Jeong-Sul Son, Tae Jong Lee, Hee Joon Kim and Changsoo Shin

Geophysical Prospecting (2014)

doi:10.1111/1365-2478.12132 PDF

1. We propose a fully three-dimensional edge-finite-element algorithm for simulating CSEM surveys.

2. We compare the performance between direct and iterative solvers.

3. The results show the superior efficiency of direct solvers, particularly for multisource problems.

Yonghyun Chung and Changsoo Shin

SEG Technical Program Expanded Abstracts (2017)

doi:10.1111/1365-2478.12132 PDF

1. We adopt general measures - L2, L1, Huber, Hybrid, Sech, Cauchy, L0 for measuring data fidelity and model regularity.

2. We illustrate different features of general measures through synthetic experiments.

3. The use of general measures ensures high-fidelity data-fitting and provides a way to emphasize certain desirable attributes.