Submarine cable fault identification based on FCN-GRU-SVM Yuxiang Lv, Yawen Dong, Yuan Li, Hui Wu, Kai Hu, Hao Hu and Wenjiang Feng E3S Web Conf., 360 (2022) 01055 Published online: 23 November 2022 DOI: 10.1051/e3sconf/202236001055