Table 2 C-index, Log-rank score, and Brier score for different clustering methods in datasets.
SPI-II | K-prototype | SSC-Bair | DLC-MMD | DLC-Kuiper UB | P-value | |
|---|---|---|---|---|---|---|
(A) Training set, mean (SD) | ||||||
C-index | 0.615 (0.015) | 0.523 (0.012) | 0.523 (0.013) | 0.673 (0.030) | 0.709 (0.019) | < 0.001 |
Log-rank score | 116.990 (12.122) | 4.061 (2.356) | 4.515 (2.971) | 476.833 (110.306) | 817.736 (140.927) | < 0.001 |
Brier score | 0.085 (0.001) | 0.086 (0.001) | 0.086 (0.001) | 0.081 (0.002) | 0.076 (0.002) | < 0.001 |
(B) Validation set, mean (SD) | ||||||
C-index | 0.628 (0.022) | 0.531 (0.018) | 0.532 (0.024) | 0.654 (0.032) | 0.690 (0.018) | < 0.001 |
Log-rank score | 43.690 (9.587) | 3.555 (2.547) | 3.673 (2.706) | 106.983 (30.735) | 170.533 (24.017) | < 0.001 |
Brier score | 0.084 (0.002) | 0.086 (0.002) | 0.086 (0.002) | 0.080 (0.001) | 0.077 (0.001) | < 0.001 |
(C) Test set, mean (SD) | ||||||
C-index | 0.614 (0.024) | 0.525 (0.022) | 0.524 (0.020) | 0.657 (0.039) | 0.674 (0.027) | < 0.001 |
Log-rank score | 38.247 (9.315) | 2.810 (2.769) | 2.796 (2.753) | 106.249 (33.097) | 153.099 (32.740) | < 0.001 |
Brier score | 0.085 (0.002) | 0.086 (0.002) | 0.086 (0.002) | 0.081 (0.002) | 0.079 (0.001) | < 0.001 |
