Graph Regularized Nonnegative Matrix Factorization with Sparse Coding

Figure 2

5 × 5 and 7 × 7 basis images of NMF, LNMF, GNMF, FMD-NMF, and S-GRNMF_SC on ORL and YALE database.

(a) 5 × 5 and 7 × 7 basis images of NMF on ORL and YALE database

(b) 5 × 5 and 7 × 7 basis images of LNMF on ORL and YALE database

(c) 5 × 5 and 7 × 7 basis images of GNMF on ORL and YALE database

(d) 5 × 5 and 7 × 7 basis images of FMD-NMF on ORL and YALE database

(e) 5 × 5 and 7 × 7 basis images of S-GRNMF_SC on ORL and YALE database