1. Chongqing Jiaotong University,School of Mathematics and Statistics,Chongqing,China
2. Chongqing Jiaotong University,School of Information Science and Engineering,Chongqing,China
3. University Anhui University,School of Artificial,Anhui,China
4. Chongqing Jiaotong University,Institute of Information Science and Engineering,Chongqing,China