PARAFAC-ALS Lite: Parallel Factor Analysis - Alternating Least Squares
UnmixingMATLAB
Parallel Factor Analysis by Alternating Least Squares for 3-way data with non-negativity constraints on A, B and C. Uses Khatri–Rao structure, column normalization to avoid scale ambiguity, and per-iteration LOF monitoring with simple real-time plots. Compact MATLAB code.