Rambe, A.U., Candra, R.M., Insani, F., Abdillah, R. and Gusti, S.K. 2026. Application of the smote and backpropagation neural network (BPNN) techniques in the classification of non- alcoholic fatty liver disease (NAFLD). Science, Technology, and Communication Journal. 6, 3 (Jun. 2026), 441-450. DOI:https://doi.org/10.59190/stc.v6i3.399.