This package contains the codes for the Non-negative Matrix Factorization (NMF) problem and the three-way Non-negative approximate canonical polyadic decomposition (NCPD) described in the paper
"Inertial Block Proximal Methods for Non-Convex Non-Smooth Optimization", Le Thi Khanh Hien, Nicolas Gillis and Panos Patrinos, ICML 2020.