1. Department of Information and Finance Management, National Taipei University of Technology, Taipei, Taiwan
2. Department of Computer Science and Information Engineering, National Taiwan University, Taipei, Taiwan
3. Department of Mathematics & Computer Science, Brandon University, Brandon, Canada
4. Research Centre for Interneural Computing, China Medical University, Taichung, Taiwan
5. Department of Computer Science, Electrical Engineering and Mathematical Sciences, Western Norway University of Applied Sciences, Bergen, Norway