AUTHOR=Liu Zhong-Yuan , Li Di-Quan , Liu Yecheng , Zhang Xian TITLE=Denoising of electromagnetic data from different geological blocks using a hybrid PSO-GWO algorithm and CNN JOURNAL=Frontiers in Earth Science VOLUME=Volume 13 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/earth-science/articles/10.3389/feart.2025.1526527 DOI=10.3389/feart.2025.1526527 ISSN=2296-6463