[1] Kyungpook Natl Univ, Sch Comp Sci & Engn, Daegu 702701, South Korea
[2] Bahria Univ, Dept Comp Sci, Islamabad 25000, Pakistan
[3] NIT Kurukshetra, Dept Comp Engn, Kurukshetra 136118, Haryana, India
[4] Sungkyul Univ, Dept Media Software, Anyang 430010, South Korea