1. College of Information and Control Engineering, China University of Petroleum Huadong—Qingdao Campus, Qingdao, China
2. PPGEE, Federal University of Piaui, Teresina, Brazil
3. School of Engineering, IT and Physical Sciences, Federation University Australia, Ballarat, VIC, Australia
4. Computer Science, Missouri University of Science and Technology, Rolla, MO, USA