Research Article
Multimode Process Monitoring Method Based on Multiblock Projection Nonnegative Matrix Factorization
| Method | Computational time (s) | Offline modeling time | Online monitoring time |
| PCA | 0.35 | 0.0015 | NMF | 0.78 | 0.0021 | PNMF | 2.06 | 0.0004 | MPNMF | 10.9 | 0.0011 |
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