1. Shien-Ming Wu School of Intelligent Engineering, South China University of Technology, China
2. Department of Electrical and Computer Engineering, National University of Singapore, Singapore
3. Shien-Ming Wu School of Intelligent Engineering, South China University of Technology, Guangzhou, Guangdong, China
4. School of Data Science, The Chinese University of Hong Kong (Shenzhen), China
5. Cognitive Systems Lab, University of Bremen, Germany