Authors
Yang Wenhui
School of computer science and engineering Xi’an Techonolgical University, Xi’an, China
Yu Fan
School of computer science and engineering Xi’an Techonolgical University, Xi’an, China
© 2018 Yang Wenhui, Yu Fan, published by Xi’an Technological University
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.