[Tang, Yajiao; Zhu, Yulin] Cent South Univ Forestry & Technol, Coll Econ, Changsha 410004, Hunan, Peoples R China.
[Tang, Yajiao; Tang, Zheng; Gao, Shangce] Univ Toyama, Fac Engn, Toyama 9308555, Japan.
[Ji, Junkai] Shenzhen Univ, Coll Comp Sci & Software Engn, Shenzhen 518060, Peoples R China.
[Todo, Yuki] Kanazawa Univ, Sch Elect & Comp Engn, Kanazawa, Ishikawa 9201192, Japan.