dm.cs.tu-dortmund.de/mlbits/matrix-factorization-intro/
Motivation Matrix Factorization – Lecture Notes
matrix \(\textcolor[RGB]{132,184,24}{X}\in \mathbb {R}^{m\times n}\) , and the parameter \(k\) with \(1\leq k \leq \min \{ m,n\}\) , find two matrixes
\[\begin{align*} \textcolor[RGB]{246,180,63}{W} & \in …
