WALCOM: Algorithms and Computation 12th International Conference, WALCOM 2018, Dhaka, Bangladesh, March 3-5, 2018, Proceedings - Rahman, M. Sohel; Rahman, M. Sohel; Sung, Wing-Kin; Sung, Wing-Kin; Uehara, Ryuhei; Uehara, Ryuhei (Springer International Publishing : Imprint: Springer, 2018)