Funding for this research was provided by:
National Natural Science Foundation of China (61661008)
Natural Science Foundation of China (61603104)
Natural Science Foundation of Guangxi Province (2017GXNSFAA198180, 2015GXNSFBA139256)
Natural Science Foundation of Guangxi Province (2016GXNSFCA380017)
Overseas 100 Talents Program of Guangxi Higher Education
Guangxi University of China (KY2016YB059)
Guangxi Key Lab of Multi-source Information Mining & Security (MIMS15-07)
Research Foundation of Guangxi Normal University
Innovation Project of Guangxi Graduate Education (YCSZ2017055)
the Scientific Research Funds for the Returned Overseas Chinese Scholars from State Education Ministry
Young Key Program of Education Department from Fujian Province (JZ160425)
Department of Education, Fujian Province (I201501005)
Article History
Received: 24 June 2017
Accepted: 30 March 2018
First Online: 10 April 2018