Complex-Valued Neural Networks:A Comprehensive Survey  

作　　者：ChiYan Lee Hideyuki Hasegawa Shangce Gao 

机构地区：[1]Faculty of Engineering,University of Toyama,Toyama 930-8555,Japan

出　　处：《IEEE/CAA Journal of Automatica Sinica》2022年第8期1406-1426,共21页自动化学报（英文版）

基　　金：partially supported by the JSPS KAKENHI(JP22H03643,JP19K22891)。

摘　　要：Complex-valued neural networks(CVNNs)have shown their excellent efficiency compared to their real counterparts in speech enhancement,image and signal processing.Researchers throughout the years have made many efforts to improve the learning algorithms and activation functions of CVNNs.Since CVNNs have proven to have better performance in handling the naturally complex-valued data and signals,this area of study will grow and expect the arrival of some effective improvements in the future.Therefore,there exists an obvious reason to provide a comprehensive survey paper that systematically collects and categorizes the advancement of CVNNs.In this paper,we discuss and summarize the recent advances based on their learning algorithms,activation functions,which is the most challenging part of building a CVNN,and applications.Besides,we outline the structure and applications of complex-valued convolutional,residual and recurrent neural networks.Finally,we also present some challenges and future research directions to facilitate the exploration of the ability of CVNNs.

关 键 词：Complex activation function complex backpropagation algorithm complex-valued learning algorithm complex-valued neural network deep learning 

分 类 号：TP183[自动化与计算机技术—控制理论与控制工程]