Correction to “A Review of the Autoencoder and Its Variants”

In the article “A Review of the Autoencoder and Its Variants,” published in the September 2018 issue (vol. 6, no. 3, pp. 44–68), the affiliations of the authors were not listed. The authors, Dr. Ganggang Dong, Prof. Hongwei Liu, and Prof. Guisheng Liao, are with the National Lab of Radar Signal Processing, Xidian University, Xi’an, China.