From: Blind source separation with optimal transport non-negative matrix factorization
 | OT | OT + OT filter | KL | IS | E | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | k | k | k | k | k | |||||||||||||||
 | 5 | 10 | 15 | 20 | 5 | 10 | 15 | 20 | 5 | 10 | 15 | 20 | 5 | 10 | 15 | 20 | 5 | 10 | 15 | 20 |
Cicada | 8.5 | 10.0 | 10.2 | 9.6 | 8.0 | 8.8 | 9.7 | 9.1 | 8.5 | 8.8 | 8.8 | 8.9 | 8.5 | 8.8 | 8.5 | 8.6 | 8.7 | 8.8 | 8.7 | 8.4 |
 | ± 0.1 | ± 0.0 | ± 0.1 | ± 0.1 | ± 0.1 | ± 0.0 | ± 0.1 | ± 0.1 | ± 0.1 | ± 0.1 | ± 0.1 | ± 0.1 | ± 0.1 | ± 0.1 | ± 0.1 | ± 0.1 | ± 0.1 | ± 0.1 | ± 0.1 | ± 0.1 |
Drums | 1.9 | 5.5 | 3.6 | 3.8 | 2.1 | 5.6 | 3.6 | 3.9 | 2.8 | 4.2 | 3.2 | 3.6 | 0.7 | 1.1 | 0.7 | 1.1 | 3.1 | 4.7 | 2.6 | 2.5 |
 | ± 0.4 | ± 0.7 | ± 0.6 | ± 0.6 | ± 0.3 | ± 0.6 | ± 0.6 | ± 0.6 | ± 0.2 | ± 0.6 | ± 0.4 | ± 0.4 | ± 0.2 | ± 0.1 | ± 0.1 | ± 0.0 | ± 0.6 | ± 0.5 | ± 0.4 | ± 0.3 |
Sea | 1.4 | 2.8 | 4.6 | 3.0 | 1.3 | 3.0 | 4.6 | 3.0 | 4.7 | 6.2 | 6.7 | 6.2 | 4.2 | 5.0 | 5.7 | 5.4 | 10.1 | 8.9 | 8.1 | 5.5 |
 | ± 0.9 | ± 0.6 | ± 0.4 | ± 1.0 | ± 0.8 | ± 0.6 | ± 0.4 | ± 1.0 | ± 1.0 | ± 0.8 | ± 0.6 | ± 0.5 | ± 0.3 | ± 0.5 | ± 0.6 | ± 0.4 | ± 1.0 | ± 0.6 | ± 0.6 | ± 0.4 |
Subway | 6.2 | 6.4 | 3.1 | 4.7 | 5.5 | 5.9 | 3.0 | 4.7 | 5.2 | 4.5 | 3.1 | 3.1 | 4.0 | 2.2 | 2.1 | 2.9 | 5.3 | 4.8 | 4.2 | 3.4 |
 | ± 1.3 | ± 0.9 | ± 1.0 | ± 1.2 | ± 1.0 | ± 0.9 | ± 1.0 | ± 1.2 | ± 1.6 | ± 1.7 | ± 0.9 | ± 0.9 | ± 0.8 | ± 0.4 | ± 0.4 | ± 0.5 | ± 2.3 | ± 1.3 | ± 1.0 | ± 0.9 |