Tang, Tingting
Bi, Lei
Luo, Li
Li, Jie
Funding for this research was provided by:
NSFC (61505016, 61475031, 51522204 and 11674234)
Project of Sichuan Provincial Department of Education (15ZA0183)
Scientific research fund of Chengdu University of Information Technology (J201417)
Scientific and Technological Research Program of Chongqing Municipal Education Commission (KJ1402907)
cience and Technology Bureau of Chengdu (2015-HM01-00579-SF)