This work is partly supported by the National Natural Science Foundation of China (Grant Nos. 61761029, 61871209, and 61901210). Authors’ addresses: J. Chen and X. Hong, School of Information and Engineering, Nanchang University, Nanchang, 330031, Jiangxi, China; emails: {chenjiaoyan, hongxianggong}@ncu.edu.cn; L. T. Yang, Department of Computer Science, St. Francis Xavier University, Antigonish, B2G2W5, Nova Scotia, Canada; email: ltyang@stfx.ca; X. Deng (corresponding author), School of Electrical Engineering, University of South China, Hengyang, 421001, Hunan, China; email: dengxj615@sina.com; L. Yi, School of Civil Engineering, University of South China, Hengyang, 421001, Hunan, China; email: ylzdxj615@sina.com. Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from permissions@acm.org. © 2020 Association for Computing Machinery. 1533-5399/2020/08-ART24 $15.00 https://doi.org/10.1145/3377402
