In the original article, the author Xue Zhang's affiliation is “Department of Computer Science, Xiangnan University, Hunan, China”. Because the author changed her affiliation to “School of Computer and Software Engineering, Huaiyin Institute of Technology, Huai'an, Jiangsu, China” and the publishing fees will be paid by the new affiliation, this has been added as a present address.
The original article has been updated.
Conflict of interest statement
The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.