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Cosine similarity QR between pairs of homologous synergy vectors extracted via different initialization methods. Similarity values are presented when the extraction is performed on the original and on the artificially corrupted EMGs, built as D = W∗[C EXP or C CORR].
| C EXP/C CORR | SPARSE | NSVD | RAND |
|---|---|---|---|
| W1 | 0.99/0.99 | 0.99/0.94 | 0.98/0.87 |
| W2 | 0.97/0.99 | 0.99/0.99 | 0.98/0.98 |
| W3 | 0.98/0.99 | 0.98/0.99 | 0.97/0.70 |
| W4 | 0.99/0.99 | 0.99/0.97 | 0.99/0.97 |
