Affiliation: | 1.School of Information and Communication, Guilin University of Electronic Technology, Guilin, 541004, China ;2.Hubei Engineering Technology Research Center of Education Informationization, Hubei University, Wuhan, 430062, China ;3.Department of Computer Science, University of Texas at San Antonio, San Antonio, TX, 78249, USA ;4.Department Computer Engineering and Informatics, University of Patras, 26 500, Rio, Greece ; |