AUTHOR=Yang Zhi-xiang , Chen Bin-qiang TITLE=An effective sparsity evaluation criterion for power-line interference suppression of EEG signal JOURNAL=Frontiers in Neuroscience VOLUME=16 YEAR=2022 URL=https://www.frontiersin.org/journals/neuroscience/articles/10.3389/fnins.2022.984471 DOI=10.3389/fnins.2022.984471 ISSN=1662-453X