Jati, G., Faculty of Computer Science, Universitas Indonesia, Depok, Indonesia; Gunawan, A.A.S., Mathematics Department, School of Computer Science, Bina Nusantara University, Jakarta, Indonesia; Lestari, S.W., Faculty of Medicine, Universitas Indonesia, Indonesia; Jatmiko, W., Faculty of Computer Science, Universitas Indonesia, Depok, Indonesia; Hilman, M.H., Melbourne School of Engineering, University of Melbourne, Australia