Cherif Bali, University of Biskra, Algeria; Hamaizia Zohra, University of Biskra, Algeria, Algeria; Youcef Braham Chaouche, Mourad Nedil, University of Quebec at AbitibiTemiscamingue (UQAT), Canada
Min Wang, Chongqing University of Posts and Telecommunications, China; Nan Hu, Wenqing Xie, A-INFO Inc., China; Zhengchuan Chen, Chongqing University, China