Nonnegative Matrix Factorization Requires Irrationality

Dmitry Chistikov, Stefan Kiefer, Ines Marušić +2

Nonnegative matrix factorization (NMF) is the problem of decomposing a given nonnegative $n\times m$ matrix $M$ into a product of a nonnegative $n\times d$ matrix $W$ and a nonne…