1. Xiangtan University,School of Computer Science and School of Cyberspace Science Hunan International Scientific and Technological Cooperation Base of Intelligent network,Xiangtan,China
2. Jinan University,School of Information Science and Technology,Guangzhou,China
3. Xiangtan University,School of Mathematics and Compulational Science,Xiangtan,China
4. Guangxi Normal University,Guangxi Key Lab of Multi-source Information Mining & Security,Guilin,China