Ji, Xiaodong
Xu, Tingting
Li, Wenhua
Liang, Liyuan
Funding for this research was provided by:
Young Scientists Fund (61401238)
Nantong University-Nantong Joint Research Center for Intelligent Information Technology (KFKT2017A03)
National Natural Science Foundation of China (61871241)
Article History
Received: 1 September 2018
Accepted: 9 April 2019
First Online: 23 April 2019
Competing interests
: The authors declare that they have no competing interests.
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