1. Department of Electrical Engineering, National Kaohsiung University of Science and Technology, Kaohsiung, Taiwan, ROC
2. Big Data Laboratories, Chunghwa Telecom Co., Taoyuan, Taiwan, ROC
3. Graduate Institute of Biomedical Electronics and Bioinformatics, National Taiwan University, Taipei, Taiwan
4. Institute of Information Science, Academia Sinica, Taipei, Taiwan
5. School of Public Health and Community Medicine, University of New South Wales, Sydney, Australia
6. Department of Computer Science and Information Engineering, National Taitung University, Taitung, Taiwan