Wen, Yongming
Hou, Xianming http://orcid.org/0000-0003-0811-0389
Funding for this research was provided by:
Natural Science Foundation of Shandong Province (ZR2019YQ04, 2020KJI002)
President’s fund of Minnan Normal University (KJ2020020)
the scientific research project of the education department of fujian province (JAT200331)
fujian key laboratory of granular computing and applications (minnan normal university), china
Article History
Received: 17 September 2020
Accepted: 12 July 2021
First Online: 17 August 2021
Competing interests
: The authors declare that they have no competing interests.