Table 3:
Mean cosine similarity and average number of non-zeros the factor vectors in each mode (✓ means β2 > 0, 0 ≤ θn ≤ 1 to encourage diversity).
| Method | Diversity Penalty | Cosine Similarity | Number of Non-zeros | ||||
|---|---|---|---|---|---|---|---|
| Mode 1 | Mode 2 | Mode 3 | Mode 1 | Mode 2 | Mode 3 | ||
| CP-APR | 0.00 (0.00) | 0.22 (0.00) | 0.18 (0.00) | 22.62 (1.00) | 42.21 (1.14) | 21.86 (0.23) | |
| Rubik | 0.02 (0.01) | 0.05 (0.01) | 0.14 (0.01) | 7.48 (2.73) | 26.65 (4.01) | 15.19 (2.16) | |
| DDP | 0.03 (0.00) | 0.07 (0.00) | 0.11 (0.00) | 77.79 (5.28) | 44.01 (1.99) | 17.01 (0.53) | |
| GraniteSGD | 0.31 (0.01) | 0.06 (0.01) | 0.13 (0.01) | 73.26 (1.03) | 13.07 (0.65) | 10.85 (0.54) | |
| GraniteSGD | ✓ | 0.18 (0.01) | 0.02 (0.01) | 0.12 (0.01) | 70.45 (1.69) | 18.21 (1.06) | 12.31 (0.31) |
| CP-CLIC- 1-shot | 0.19 (0.02) | 0.04 (0.02) | 0.08 (0.02) | 57.87 (3.67) | 10.14 (0.28) | 8.91 (0.12) | |
| CP-CLIC- 1-Shot | ✓ | 0.17 (0.02) | 0.01 (0.02) | 0.09 (0.02) | 64.75 (5.73) | 9.55 (0.21) | 8.61 (0.21) |
| CP-CLIC, no pruning | 0.31 (0.02) | 0.06 (0.02) | 0.12 (0.02) | 71.63 (1.68) | 13.53 (0.70) | 11.28 (0.39) | |
| CP-CLIC, no pruning | ✓ | 0.24 (0.02) | 0.03 (0.02) | 0.14 (0.02) | 72.29 (1.85) | 16.65 (1.04) | 11.79 (0.31) |
| CP-CLIC | 0.32 (0.01) | 0.05 (0.01) | 0.11 (0.01) | 66.83 (0.91) | 11.87 (0.93) | 9.51 (0.55) | |
| CP-CLIC | ✓ | 0.28 (0.02) | 0.03 (0.02) | 0.14 (0.02) | 69.09 (0.99) | 16.73 (0.49) | 10.37 (0.37) |