| pnmfeu.m | PNMF based on Euclidean distance |
| pnmfkl.m | PNMF based on I-divergence (non-normalized KL-divergence), non-sparse input |
| pnmfkl_sparse.m | PNMF based on I-divergence, sparse input. Run "mex sp_factor_ratio.c" before its use. |
| idiv.m | Utility function that computes I-divergence between two non-sparse matrices/vectors |
| sp_factor_ratio.c | Utility C function that computes Z=X./(W*H) for sparse X, called by pnmfkl_sparse.m |
| pnmf_demo.m | Demonstration script. |
| faces.mat | Faces data used in the demo (inner faces extracted from the FERET database). |
| cisi.mat | CISI text data used in the demo. |
| ShowNMFBasis.m | Utility function for displaying the columns of resulting matrix as basis images. |
Please give reference to our contribution below if you use our PNMF toolbox in your publishable work.
