1. College of Computer Science and Technology, China University of Petroleum (East China), Qingdao, China
2. Research Institute of Petroleum Exploration and Development, PetroChina Tarim Oilfield Company, Korla, China
3. School of Information Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, China
4. School of Information Technology and Engineering, Vellore Institute of Technology, Vellore, India