1. TangShan University,Department of computer science,TangShan,China
2. Liulin Automation Equipment Co., Ltd.,TangShan,China
3. National Energy Conservation Center,BeiJing,China
4. Computation Center. TangShan University,TangShan,China
5. Graduate School of Tangshan Southwest Jiaotong University,TangShan,China
6. Research Institute, China United Network Communications Corporation,BeiJing,China