1. Key Laboratory of Knowledge Engineering with Big Data of the Ministry of Education, Hefei University of Technology, Hefei, China
2. School of Computer Science and Information Engineering, Hefei University of Technology, Hefei, China
3. Intelligent Interconnected Systems Laboratory of Anhui Province, Hefei University of Technology, Hefei, China
4. National Smart Eldercare International S&T Cooperation Base, Hefei University of Technology, Hefei, China