1. Forecast Research Laboratory, Department of Statistics, Faculty of Arts and Science, Giresun University, Giresun, Turkey.
2. Department of Management Science, Management Science School, Marketing Analytics and Forecasting Research Center, Lancaster University, Lancaster, United Kingdom.
3. Department of Engineering Science, National Cheng Kung University, Tainan, Taiwan.
4. Center for Innovative FinTech Business Models, National Cheng Kung University, Tainan, Taiwan.