[1] Thapar Inst Engn & Technol, Comp Sci & Engn Dept, Patiala 147004, Punjab, India
[2] Chandigarh Univ, Comp Sci & Engn Dept, Mohali, Punjab, India
[3] Univ Quebec, Ecole Technol Super, Montreal, PQ, Canada
[4] Newcastle Univ, Dept Comp Sci, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England
[5] Chinese Acad Sci, Beijing 100049, Peoples R China
[6] Univ Tasmania, Dept Comp & Informat Syst, Fac Engn & ICT, Hobart, Tas 7005, Australia