Authors
Shengquan Yang
School of Computer Science and Engineering, Xi’an Technological University, Xi’an, China
Ceng Gong
School of Computer Science and Engineering, Xi’an Technological University, Xi’an, China
© 2018 Shengquan Yang, Ceng Gong, published by Xi’an Technological University
This work is licensed under the Creative Commons Attribution 4.0 License.